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1 /* |
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2 * Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 // FORMS.CPP - Definitions for ADL Parser Forms Classes |
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26 #include "adlc.hpp" |
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27 |
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28 //==============================Instructions=================================== |
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29 //------------------------------InstructForm----------------------------------- |
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30 InstructForm::InstructForm(const char *id, bool ideal_only) |
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31 : _ident(id), _ideal_only(ideal_only), |
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32 _localNames(cmpstr, hashstr, Form::arena), |
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33 _effects(cmpstr, hashstr, Form::arena), |
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34 _is_mach_constant(false), |
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35 _needs_constant_base(false), |
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36 _has_call(false) |
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37 { |
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38 _ftype = Form::INS; |
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39 |
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40 _matrule = NULL; |
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41 _insencode = NULL; |
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42 _constant = NULL; |
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43 _is_postalloc_expand = false; |
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44 _opcode = NULL; |
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45 _size = NULL; |
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46 _attribs = NULL; |
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47 _predicate = NULL; |
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48 _exprule = NULL; |
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49 _rewrule = NULL; |
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50 _format = NULL; |
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51 _peephole = NULL; |
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52 _ins_pipe = NULL; |
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53 _uniq_idx = NULL; |
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54 _num_uniq = 0; |
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55 _cisc_spill_operand = Not_cisc_spillable;// Which operand may cisc-spill |
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56 _cisc_spill_alternate = NULL; // possible cisc replacement |
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57 _cisc_reg_mask_name = NULL; |
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58 _is_cisc_alternate = false; |
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59 _is_short_branch = false; |
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60 _short_branch_form = NULL; |
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61 _alignment = 1; |
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62 } |
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63 |
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64 InstructForm::InstructForm(const char *id, InstructForm *instr, MatchRule *rule) |
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65 : _ident(id), _ideal_only(false), |
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66 _localNames(instr->_localNames), |
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67 _effects(instr->_effects), |
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68 _is_mach_constant(false), |
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69 _needs_constant_base(false), |
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70 _has_call(false) |
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71 { |
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72 _ftype = Form::INS; |
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73 |
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74 _matrule = rule; |
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75 _insencode = instr->_insencode; |
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76 _constant = instr->_constant; |
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77 _is_postalloc_expand = instr->_is_postalloc_expand; |
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78 _opcode = instr->_opcode; |
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79 _size = instr->_size; |
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80 _attribs = instr->_attribs; |
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81 _predicate = instr->_predicate; |
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82 _exprule = instr->_exprule; |
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83 _rewrule = instr->_rewrule; |
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84 _format = instr->_format; |
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85 _peephole = instr->_peephole; |
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86 _ins_pipe = instr->_ins_pipe; |
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87 _uniq_idx = instr->_uniq_idx; |
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88 _num_uniq = instr->_num_uniq; |
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89 _cisc_spill_operand = Not_cisc_spillable; // Which operand may cisc-spill |
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90 _cisc_spill_alternate = NULL; // possible cisc replacement |
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91 _cisc_reg_mask_name = NULL; |
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92 _is_cisc_alternate = false; |
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93 _is_short_branch = false; |
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94 _short_branch_form = NULL; |
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95 _alignment = 1; |
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96 // Copy parameters |
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97 const char *name; |
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98 instr->_parameters.reset(); |
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99 for (; (name = instr->_parameters.iter()) != NULL;) |
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100 _parameters.addName(name); |
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101 } |
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102 |
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103 InstructForm::~InstructForm() { |
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104 } |
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105 |
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106 InstructForm *InstructForm::is_instruction() const { |
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107 return (InstructForm*)this; |
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108 } |
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109 |
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110 bool InstructForm::ideal_only() const { |
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111 return _ideal_only; |
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112 } |
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113 |
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114 bool InstructForm::sets_result() const { |
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115 return (_matrule != NULL && _matrule->sets_result()); |
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116 } |
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117 |
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118 bool InstructForm::needs_projections() { |
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119 _components.reset(); |
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120 for( Component *comp; (comp = _components.iter()) != NULL; ) { |
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121 if (comp->isa(Component::KILL)) { |
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122 return true; |
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123 } |
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124 } |
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125 return false; |
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126 } |
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127 |
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128 |
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129 bool InstructForm::has_temps() { |
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130 if (_matrule) { |
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131 // Examine each component to see if it is a TEMP |
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132 _components.reset(); |
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133 // Skip the first component, if already handled as (SET dst (...)) |
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134 Component *comp = NULL; |
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135 if (sets_result()) comp = _components.iter(); |
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136 while ((comp = _components.iter()) != NULL) { |
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137 if (comp->isa(Component::TEMP)) { |
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138 return true; |
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139 } |
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140 } |
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141 } |
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142 |
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143 return false; |
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144 } |
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145 |
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146 uint InstructForm::num_defs_or_kills() { |
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147 uint defs_or_kills = 0; |
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148 |
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149 _components.reset(); |
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150 for( Component *comp; (comp = _components.iter()) != NULL; ) { |
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151 if( comp->isa(Component::DEF) || comp->isa(Component::KILL) ) { |
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152 ++defs_or_kills; |
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153 } |
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154 } |
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155 |
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156 return defs_or_kills; |
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157 } |
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158 |
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159 // This instruction has an expand rule? |
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160 bool InstructForm::expands() const { |
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161 return ( _exprule != NULL ); |
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162 } |
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163 |
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164 // This instruction has a late expand rule? |
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165 bool InstructForm::postalloc_expands() const { |
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166 return _is_postalloc_expand; |
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167 } |
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168 |
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169 // This instruction has a peephole rule? |
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170 Peephole *InstructForm::peepholes() const { |
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171 return _peephole; |
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172 } |
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173 |
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174 // This instruction has a peephole rule? |
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175 void InstructForm::append_peephole(Peephole *peephole) { |
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176 if( _peephole == NULL ) { |
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177 _peephole = peephole; |
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178 } else { |
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179 _peephole->append_peephole(peephole); |
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180 } |
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181 } |
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182 |
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183 |
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184 // ideal opcode enumeration |
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185 const char *InstructForm::ideal_Opcode( FormDict &globalNames ) const { |
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186 if( !_matrule ) return "Node"; // Something weird |
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187 // Chain rules do not really have ideal Opcodes; use their source |
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188 // operand ideal Opcode instead. |
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189 if( is_simple_chain_rule(globalNames) ) { |
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190 const char *src = _matrule->_rChild->_opType; |
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191 OperandForm *src_op = globalNames[src]->is_operand(); |
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192 assert( src_op, "Not operand class of chain rule" ); |
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193 if( !src_op->_matrule ) return "Node"; |
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194 return src_op->_matrule->_opType; |
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195 } |
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196 // Operand chain rules do not really have ideal Opcodes |
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197 if( _matrule->is_chain_rule(globalNames) ) |
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198 return "Node"; |
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199 return strcmp(_matrule->_opType,"Set") |
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200 ? _matrule->_opType |
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201 : _matrule->_rChild->_opType; |
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202 } |
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203 |
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204 // Recursive check on all operands' match rules in my match rule |
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205 bool InstructForm::is_pinned(FormDict &globals) { |
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206 if ( ! _matrule) return false; |
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207 |
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208 int index = 0; |
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209 if (_matrule->find_type("Goto", index)) return true; |
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210 if (_matrule->find_type("If", index)) return true; |
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211 if (_matrule->find_type("CountedLoopEnd",index)) return true; |
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212 if (_matrule->find_type("Return", index)) return true; |
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213 if (_matrule->find_type("Rethrow", index)) return true; |
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214 if (_matrule->find_type("TailCall", index)) return true; |
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215 if (_matrule->find_type("TailJump", index)) return true; |
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216 if (_matrule->find_type("Halt", index)) return true; |
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217 if (_matrule->find_type("Jump", index)) return true; |
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218 |
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219 return is_parm(globals); |
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220 } |
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221 |
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222 // Recursive check on all operands' match rules in my match rule |
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223 bool InstructForm::is_projection(FormDict &globals) { |
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224 if ( ! _matrule) return false; |
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225 |
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226 int index = 0; |
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227 if (_matrule->find_type("Goto", index)) return true; |
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228 if (_matrule->find_type("Return", index)) return true; |
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229 if (_matrule->find_type("Rethrow", index)) return true; |
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230 if (_matrule->find_type("TailCall",index)) return true; |
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231 if (_matrule->find_type("TailJump",index)) return true; |
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232 if (_matrule->find_type("Halt", index)) return true; |
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233 |
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234 return false; |
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235 } |
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236 |
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237 // Recursive check on all operands' match rules in my match rule |
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238 bool InstructForm::is_parm(FormDict &globals) { |
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239 if ( ! _matrule) return false; |
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240 |
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241 int index = 0; |
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242 if (_matrule->find_type("Parm",index)) return true; |
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243 |
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244 return false; |
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245 } |
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246 |
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247 bool InstructForm::is_ideal_negD() const { |
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248 return (_matrule && _matrule->_rChild && strcmp(_matrule->_rChild->_opType, "NegD") == 0); |
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249 } |
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250 |
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251 // Return 'true' if this instruction matches an ideal 'Copy*' node |
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252 int InstructForm::is_ideal_copy() const { |
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253 return _matrule ? _matrule->is_ideal_copy() : 0; |
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254 } |
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255 |
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256 // Return 'true' if this instruction is too complex to rematerialize. |
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257 int InstructForm::is_expensive() const { |
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258 // We can prove it is cheap if it has an empty encoding. |
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259 // This helps with platform-specific nops like ThreadLocal and RoundFloat. |
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260 if (is_empty_encoding()) |
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261 return 0; |
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262 |
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263 if (is_tls_instruction()) |
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264 return 1; |
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265 |
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266 if (_matrule == NULL) return 0; |
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267 |
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268 return _matrule->is_expensive(); |
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269 } |
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270 |
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271 // Has an empty encoding if _size is a constant zero or there |
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272 // are no ins_encode tokens. |
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273 int InstructForm::is_empty_encoding() const { |
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274 if (_insencode != NULL) { |
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275 _insencode->reset(); |
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276 if (_insencode->encode_class_iter() == NULL) { |
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277 return 1; |
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278 } |
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279 } |
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280 if (_size != NULL && strcmp(_size, "0") == 0) { |
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281 return 1; |
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282 } |
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283 return 0; |
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284 } |
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285 |
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286 int InstructForm::is_tls_instruction() const { |
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287 if (_ident != NULL && |
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288 ( ! strcmp( _ident,"tlsLoadP") || |
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289 ! strncmp(_ident,"tlsLoadP_",9)) ) { |
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290 return 1; |
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291 } |
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292 |
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293 if (_matrule != NULL && _insencode != NULL) { |
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294 const char* opType = _matrule->_opType; |
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295 if (strcmp(opType, "Set")==0) |
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296 opType = _matrule->_rChild->_opType; |
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297 if (strcmp(opType,"ThreadLocal")==0) { |
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298 fprintf(stderr, "Warning: ThreadLocal instruction %s should be named 'tlsLoadP_*'\n", |
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299 (_ident == NULL ? "NULL" : _ident)); |
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300 return 1; |
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301 } |
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302 } |
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303 |
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304 return 0; |
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305 } |
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306 |
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307 |
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308 // Return 'true' if this instruction matches an ideal 'If' node |
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309 bool InstructForm::is_ideal_if() const { |
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310 if( _matrule == NULL ) return false; |
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311 |
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312 return _matrule->is_ideal_if(); |
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313 } |
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314 |
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315 // Return 'true' if this instruction matches an ideal 'FastLock' node |
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316 bool InstructForm::is_ideal_fastlock() const { |
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317 if( _matrule == NULL ) return false; |
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318 |
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319 return _matrule->is_ideal_fastlock(); |
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320 } |
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321 |
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322 // Return 'true' if this instruction matches an ideal 'MemBarXXX' node |
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323 bool InstructForm::is_ideal_membar() const { |
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324 if( _matrule == NULL ) return false; |
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325 |
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326 return _matrule->is_ideal_membar(); |
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327 } |
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328 |
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329 // Return 'true' if this instruction matches an ideal 'LoadPC' node |
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330 bool InstructForm::is_ideal_loadPC() const { |
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331 if( _matrule == NULL ) return false; |
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332 |
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333 return _matrule->is_ideal_loadPC(); |
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334 } |
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335 |
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336 // Return 'true' if this instruction matches an ideal 'Box' node |
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337 bool InstructForm::is_ideal_box() const { |
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338 if( _matrule == NULL ) return false; |
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339 |
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340 return _matrule->is_ideal_box(); |
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341 } |
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342 |
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343 // Return 'true' if this instruction matches an ideal 'Goto' node |
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344 bool InstructForm::is_ideal_goto() const { |
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345 if( _matrule == NULL ) return false; |
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346 |
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347 return _matrule->is_ideal_goto(); |
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348 } |
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349 |
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350 // Return 'true' if this instruction matches an ideal 'Jump' node |
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351 bool InstructForm::is_ideal_jump() const { |
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352 if( _matrule == NULL ) return false; |
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353 |
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354 return _matrule->is_ideal_jump(); |
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355 } |
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356 |
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357 // Return 'true' if instruction matches ideal 'If' | 'Goto' | 'CountedLoopEnd' |
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358 bool InstructForm::is_ideal_branch() const { |
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359 if( _matrule == NULL ) return false; |
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360 |
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361 return _matrule->is_ideal_if() || _matrule->is_ideal_goto(); |
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362 } |
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363 |
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364 |
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365 // Return 'true' if this instruction matches an ideal 'Return' node |
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366 bool InstructForm::is_ideal_return() const { |
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367 if( _matrule == NULL ) return false; |
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368 |
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369 // Check MatchRule to see if the first entry is the ideal "Return" node |
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370 int index = 0; |
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371 if (_matrule->find_type("Return",index)) return true; |
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372 if (_matrule->find_type("Rethrow",index)) return true; |
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373 if (_matrule->find_type("TailCall",index)) return true; |
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374 if (_matrule->find_type("TailJump",index)) return true; |
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375 |
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376 return false; |
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377 } |
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378 |
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379 // Return 'true' if this instruction matches an ideal 'Halt' node |
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380 bool InstructForm::is_ideal_halt() const { |
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381 int index = 0; |
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382 return _matrule && _matrule->find_type("Halt",index); |
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383 } |
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384 |
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385 // Return 'true' if this instruction matches an ideal 'SafePoint' node |
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386 bool InstructForm::is_ideal_safepoint() const { |
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387 int index = 0; |
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388 return _matrule && _matrule->find_type("SafePoint",index); |
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389 } |
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390 |
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391 // Return 'true' if this instruction matches an ideal 'Nop' node |
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392 bool InstructForm::is_ideal_nop() const { |
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393 return _ident && _ident[0] == 'N' && _ident[1] == 'o' && _ident[2] == 'p' && _ident[3] == '_'; |
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394 } |
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395 |
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396 bool InstructForm::is_ideal_control() const { |
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397 if ( ! _matrule) return false; |
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398 |
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399 return is_ideal_return() || is_ideal_branch() || _matrule->is_ideal_jump() || is_ideal_halt(); |
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400 } |
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401 |
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402 // Return 'true' if this instruction matches an ideal 'Call' node |
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403 Form::CallType InstructForm::is_ideal_call() const { |
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404 if( _matrule == NULL ) return Form::invalid_type; |
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405 |
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406 // Check MatchRule to see if the first entry is the ideal "Call" node |
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407 int idx = 0; |
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408 if(_matrule->find_type("CallStaticJava",idx)) return Form::JAVA_STATIC; |
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409 idx = 0; |
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410 if(_matrule->find_type("Lock",idx)) return Form::JAVA_STATIC; |
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411 idx = 0; |
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412 if(_matrule->find_type("Unlock",idx)) return Form::JAVA_STATIC; |
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413 idx = 0; |
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414 if(_matrule->find_type("CallDynamicJava",idx)) return Form::JAVA_DYNAMIC; |
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415 idx = 0; |
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416 if(_matrule->find_type("CallRuntime",idx)) return Form::JAVA_RUNTIME; |
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417 idx = 0; |
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418 if(_matrule->find_type("CallLeaf",idx)) return Form::JAVA_LEAF; |
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419 idx = 0; |
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420 if(_matrule->find_type("CallLeafNoFP",idx)) return Form::JAVA_LEAF; |
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421 idx = 0; |
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422 |
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423 return Form::invalid_type; |
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424 } |
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425 |
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426 // Return 'true' if this instruction matches an ideal 'Load?' node |
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427 Form::DataType InstructForm::is_ideal_load() const { |
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428 if( _matrule == NULL ) return Form::none; |
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429 |
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430 return _matrule->is_ideal_load(); |
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431 } |
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432 |
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433 // Return 'true' if this instruction matches an ideal 'LoadKlass' node |
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434 bool InstructForm::skip_antidep_check() const { |
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435 if( _matrule == NULL ) return false; |
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436 |
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437 return _matrule->skip_antidep_check(); |
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438 } |
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439 |
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440 // Return 'true' if this instruction matches an ideal 'Load?' node |
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441 Form::DataType InstructForm::is_ideal_store() const { |
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442 if( _matrule == NULL ) return Form::none; |
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443 |
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444 return _matrule->is_ideal_store(); |
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445 } |
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446 |
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447 // Return 'true' if this instruction matches an ideal vector node |
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448 bool InstructForm::is_vector() const { |
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449 if( _matrule == NULL ) return false; |
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450 |
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451 return _matrule->is_vector(); |
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452 } |
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453 |
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454 |
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455 // Return the input register that must match the output register |
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456 // If this is not required, return 0 |
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457 uint InstructForm::two_address(FormDict &globals) { |
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458 uint matching_input = 0; |
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459 if(_components.count() == 0) return 0; |
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460 |
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461 _components.reset(); |
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462 Component *comp = _components.iter(); |
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463 // Check if there is a DEF |
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464 if( comp->isa(Component::DEF) ) { |
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465 // Check that this is a register |
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466 const char *def_type = comp->_type; |
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467 const Form *form = globals[def_type]; |
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468 OperandForm *op = form->is_operand(); |
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469 if( op ) { |
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470 if( op->constrained_reg_class() != NULL && |
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471 op->interface_type(globals) == Form::register_interface ) { |
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472 // Remember the local name for equality test later |
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473 const char *def_name = comp->_name; |
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474 // Check if a component has the same name and is a USE |
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475 do { |
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476 if( comp->isa(Component::USE) && strcmp(comp->_name,def_name)==0 ) { |
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477 return operand_position_format(def_name); |
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478 } |
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479 } while( (comp = _components.iter()) != NULL); |
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480 } |
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481 } |
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482 } |
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483 |
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484 return 0; |
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485 } |
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486 |
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487 |
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488 // when chaining a constant to an instruction, returns 'true' and sets opType |
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489 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals) { |
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490 const char *dummy = NULL; |
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491 const char *dummy2 = NULL; |
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492 return is_chain_of_constant(globals, dummy, dummy2); |
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493 } |
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494 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals, |
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495 const char * &opTypeParam) { |
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496 const char *result = NULL; |
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497 |
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498 return is_chain_of_constant(globals, opTypeParam, result); |
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499 } |
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500 |
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501 Form::DataType InstructForm::is_chain_of_constant(FormDict &globals, |
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502 const char * &opTypeParam, const char * &resultParam) { |
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503 Form::DataType data_type = Form::none; |
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504 if ( ! _matrule) return data_type; |
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505 |
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506 // !!!!! |
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507 // The source of the chain rule is 'position = 1' |
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508 uint position = 1; |
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509 const char *result = NULL; |
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510 const char *name = NULL; |
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511 const char *opType = NULL; |
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512 // Here base_operand is looking for an ideal type to be returned (opType). |
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513 if ( _matrule->is_chain_rule(globals) |
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514 && _matrule->base_operand(position, globals, result, name, opType) ) { |
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515 data_type = ideal_to_const_type(opType); |
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516 |
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517 // if it isn't an ideal constant type, just return |
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518 if ( data_type == Form::none ) return data_type; |
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519 |
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520 // Ideal constant types also adjust the opType parameter. |
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521 resultParam = result; |
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522 opTypeParam = opType; |
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523 return data_type; |
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524 } |
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525 |
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526 return data_type; |
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527 } |
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528 |
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529 // Check if a simple chain rule |
|
530 bool InstructForm::is_simple_chain_rule(FormDict &globals) const { |
|
531 if( _matrule && _matrule->sets_result() |
|
532 && _matrule->_rChild->_lChild == NULL |
|
533 && globals[_matrule->_rChild->_opType] |
|
534 && globals[_matrule->_rChild->_opType]->is_opclass() ) { |
|
535 return true; |
|
536 } |
|
537 return false; |
|
538 } |
|
539 |
|
540 // check for structural rematerialization |
|
541 bool InstructForm::rematerialize(FormDict &globals, RegisterForm *registers ) { |
|
542 bool rematerialize = false; |
|
543 |
|
544 Form::DataType data_type = is_chain_of_constant(globals); |
|
545 if( data_type != Form::none ) |
|
546 rematerialize = true; |
|
547 |
|
548 // Constants |
|
549 if( _components.count() == 1 && _components[0]->is(Component::USE_DEF) ) |
|
550 rematerialize = true; |
|
551 |
|
552 // Pseudo-constants (values easily available to the runtime) |
|
553 if (is_empty_encoding() && is_tls_instruction()) |
|
554 rematerialize = true; |
|
555 |
|
556 // 1-input, 1-output, such as copies or increments. |
|
557 if( _components.count() == 2 && |
|
558 _components[0]->is(Component::DEF) && |
|
559 _components[1]->isa(Component::USE) ) |
|
560 rematerialize = true; |
|
561 |
|
562 // Check for an ideal 'Load?' and eliminate rematerialize option |
|
563 if ( is_ideal_load() != Form::none || // Ideal load? Do not rematerialize |
|
564 is_ideal_copy() != Form::none || // Ideal copy? Do not rematerialize |
|
565 is_expensive() != Form::none) { // Expensive? Do not rematerialize |
|
566 rematerialize = false; |
|
567 } |
|
568 |
|
569 // Always rematerialize the flags. They are more expensive to save & |
|
570 // restore than to recompute (and possibly spill the compare's inputs). |
|
571 if( _components.count() >= 1 ) { |
|
572 Component *c = _components[0]; |
|
573 const Form *form = globals[c->_type]; |
|
574 OperandForm *opform = form->is_operand(); |
|
575 if( opform ) { |
|
576 // Avoid the special stack_slots register classes |
|
577 const char *rc_name = opform->constrained_reg_class(); |
|
578 if( rc_name ) { |
|
579 if( strcmp(rc_name,"stack_slots") ) { |
|
580 // Check for ideal_type of RegFlags |
|
581 const char *type = opform->ideal_type( globals, registers ); |
|
582 if( (type != NULL) && !strcmp(type, "RegFlags") ) |
|
583 rematerialize = true; |
|
584 } else |
|
585 rematerialize = false; // Do not rematerialize things target stk |
|
586 } |
|
587 } |
|
588 } |
|
589 |
|
590 return rematerialize; |
|
591 } |
|
592 |
|
593 // loads from memory, so must check for anti-dependence |
|
594 bool InstructForm::needs_anti_dependence_check(FormDict &globals) const { |
|
595 if ( skip_antidep_check() ) return false; |
|
596 |
|
597 // Machine independent loads must be checked for anti-dependences |
|
598 if( is_ideal_load() != Form::none ) return true; |
|
599 |
|
600 // !!!!! !!!!! !!!!! |
|
601 // TEMPORARY |
|
602 // if( is_simple_chain_rule(globals) ) return false; |
|
603 |
|
604 // String.(compareTo/equals/indexOf) and Arrays.equals use many memorys edges, |
|
605 // but writes none |
|
606 if( _matrule && _matrule->_rChild && |
|
607 ( strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || |
|
608 strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || |
|
609 strcmp(_matrule->_rChild->_opType,"StrIndexOf" )==0 || |
|
610 strcmp(_matrule->_rChild->_opType,"StrIndexOfChar" )==0 || |
|
611 strcmp(_matrule->_rChild->_opType,"HasNegatives" )==0 || |
|
612 strcmp(_matrule->_rChild->_opType,"AryEq" )==0 )) |
|
613 return true; |
|
614 |
|
615 // Check if instruction has a USE of a memory operand class, but no defs |
|
616 bool USE_of_memory = false; |
|
617 bool DEF_of_memory = false; |
|
618 Component *comp = NULL; |
|
619 ComponentList &components = (ComponentList &)_components; |
|
620 |
|
621 components.reset(); |
|
622 while( (comp = components.iter()) != NULL ) { |
|
623 const Form *form = globals[comp->_type]; |
|
624 if( !form ) continue; |
|
625 OpClassForm *op = form->is_opclass(); |
|
626 if( !op ) continue; |
|
627 if( form->interface_type(globals) == Form::memory_interface ) { |
|
628 if( comp->isa(Component::USE) ) USE_of_memory = true; |
|
629 if( comp->isa(Component::DEF) ) { |
|
630 OperandForm *oper = form->is_operand(); |
|
631 if( oper && oper->is_user_name_for_sReg() ) { |
|
632 // Stack slots are unaliased memory handled by allocator |
|
633 oper = oper; // debug stopping point !!!!! |
|
634 } else { |
|
635 DEF_of_memory = true; |
|
636 } |
|
637 } |
|
638 } |
|
639 } |
|
640 return (USE_of_memory && !DEF_of_memory); |
|
641 } |
|
642 |
|
643 |
|
644 bool InstructForm::is_wide_memory_kill(FormDict &globals) const { |
|
645 if( _matrule == NULL ) return false; |
|
646 if( !_matrule->_opType ) return false; |
|
647 |
|
648 if( strcmp(_matrule->_opType,"MemBarRelease") == 0 ) return true; |
|
649 if( strcmp(_matrule->_opType,"MemBarAcquire") == 0 ) return true; |
|
650 if( strcmp(_matrule->_opType,"MemBarReleaseLock") == 0 ) return true; |
|
651 if( strcmp(_matrule->_opType,"MemBarAcquireLock") == 0 ) return true; |
|
652 if( strcmp(_matrule->_opType,"MemBarStoreStore") == 0 ) return true; |
|
653 if( strcmp(_matrule->_opType,"MemBarVolatile") == 0 ) return true; |
|
654 if( strcmp(_matrule->_opType,"StoreFence") == 0 ) return true; |
|
655 if( strcmp(_matrule->_opType,"LoadFence") == 0 ) return true; |
|
656 |
|
657 return false; |
|
658 } |
|
659 |
|
660 int InstructForm::memory_operand(FormDict &globals) const { |
|
661 // Machine independent loads must be checked for anti-dependences |
|
662 // Check if instruction has a USE of a memory operand class, or a def. |
|
663 int USE_of_memory = 0; |
|
664 int DEF_of_memory = 0; |
|
665 const char* last_memory_DEF = NULL; // to test DEF/USE pairing in asserts |
|
666 const char* last_memory_USE = NULL; |
|
667 Component *unique = NULL; |
|
668 Component *comp = NULL; |
|
669 ComponentList &components = (ComponentList &)_components; |
|
670 |
|
671 components.reset(); |
|
672 while( (comp = components.iter()) != NULL ) { |
|
673 const Form *form = globals[comp->_type]; |
|
674 if( !form ) continue; |
|
675 OpClassForm *op = form->is_opclass(); |
|
676 if( !op ) continue; |
|
677 if( op->stack_slots_only(globals) ) continue; |
|
678 if( form->interface_type(globals) == Form::memory_interface ) { |
|
679 if( comp->isa(Component::DEF) ) { |
|
680 last_memory_DEF = comp->_name; |
|
681 DEF_of_memory++; |
|
682 unique = comp; |
|
683 } else if( comp->isa(Component::USE) ) { |
|
684 if( last_memory_DEF != NULL ) { |
|
685 assert(0 == strcmp(last_memory_DEF, comp->_name), "every memory DEF is followed by a USE of the same name"); |
|
686 last_memory_DEF = NULL; |
|
687 } |
|
688 // Handles same memory being used multiple times in the case of BMI1 instructions. |
|
689 if (last_memory_USE != NULL) { |
|
690 if (strcmp(comp->_name, last_memory_USE) != 0) { |
|
691 USE_of_memory++; |
|
692 } |
|
693 } else { |
|
694 USE_of_memory++; |
|
695 } |
|
696 last_memory_USE = comp->_name; |
|
697 |
|
698 if (DEF_of_memory == 0) // defs take precedence |
|
699 unique = comp; |
|
700 } else { |
|
701 assert(last_memory_DEF == NULL, "unpaired memory DEF"); |
|
702 } |
|
703 } |
|
704 } |
|
705 assert(last_memory_DEF == NULL, "unpaired memory DEF"); |
|
706 assert(USE_of_memory >= DEF_of_memory, "unpaired memory DEF"); |
|
707 USE_of_memory -= DEF_of_memory; // treat paired DEF/USE as one occurrence |
|
708 if( (USE_of_memory + DEF_of_memory) > 0 ) { |
|
709 if( is_simple_chain_rule(globals) ) { |
|
710 //fprintf(stderr, "Warning: chain rule is not really a memory user.\n"); |
|
711 //((InstructForm*)this)->dump(); |
|
712 // Preceding code prints nothing on sparc and these insns on intel: |
|
713 // leaP8 leaP32 leaPIdxOff leaPIdxScale leaPIdxScaleOff leaP8 leaP32 |
|
714 // leaPIdxOff leaPIdxScale leaPIdxScaleOff |
|
715 return NO_MEMORY_OPERAND; |
|
716 } |
|
717 |
|
718 if( DEF_of_memory == 1 ) { |
|
719 assert(unique != NULL, ""); |
|
720 if( USE_of_memory == 0 ) { |
|
721 // unique def, no uses |
|
722 } else { |
|
723 // // unique def, some uses |
|
724 // // must return bottom unless all uses match def |
|
725 // unique = NULL; |
|
726 #ifdef S390 |
|
727 // This case is important for move instructions on s390x. |
|
728 // On other platforms (e.g. x86), all uses always match the def. |
|
729 unique = NULL; |
|
730 #endif |
|
731 } |
|
732 } else if( DEF_of_memory > 0 ) { |
|
733 // multiple defs, don't care about uses |
|
734 unique = NULL; |
|
735 } else if( USE_of_memory == 1) { |
|
736 // unique use, no defs |
|
737 assert(unique != NULL, ""); |
|
738 } else if( USE_of_memory > 0 ) { |
|
739 // multiple uses, no defs |
|
740 unique = NULL; |
|
741 } else { |
|
742 assert(false, "bad case analysis"); |
|
743 } |
|
744 // process the unique DEF or USE, if there is one |
|
745 if( unique == NULL ) { |
|
746 return MANY_MEMORY_OPERANDS; |
|
747 } else { |
|
748 int pos = components.operand_position(unique->_name); |
|
749 if( unique->isa(Component::DEF) ) { |
|
750 pos += 1; // get corresponding USE from DEF |
|
751 } |
|
752 assert(pos >= 1, "I was just looking at it!"); |
|
753 return pos; |
|
754 } |
|
755 } |
|
756 |
|
757 // missed the memory op?? |
|
758 if( true ) { // %%% should not be necessary |
|
759 if( is_ideal_store() != Form::none ) { |
|
760 fprintf(stderr, "Warning: cannot find memory opnd in instr.\n"); |
|
761 ((InstructForm*)this)->dump(); |
|
762 // pretend it has multiple defs and uses |
|
763 return MANY_MEMORY_OPERANDS; |
|
764 } |
|
765 if( is_ideal_load() != Form::none ) { |
|
766 fprintf(stderr, "Warning: cannot find memory opnd in instr.\n"); |
|
767 ((InstructForm*)this)->dump(); |
|
768 // pretend it has multiple uses and no defs |
|
769 return MANY_MEMORY_OPERANDS; |
|
770 } |
|
771 } |
|
772 |
|
773 return NO_MEMORY_OPERAND; |
|
774 } |
|
775 |
|
776 |
|
777 // This instruction captures the machine-independent bottom_type |
|
778 // Expected use is for pointer vs oop determination for LoadP |
|
779 bool InstructForm::captures_bottom_type(FormDict &globals) const { |
|
780 if (_matrule && _matrule->_rChild && |
|
781 (!strcmp(_matrule->_rChild->_opType,"CastPP") || // new result type |
|
782 !strcmp(_matrule->_rChild->_opType,"CastX2P") || // new result type |
|
783 !strcmp(_matrule->_rChild->_opType,"DecodeN") || |
|
784 !strcmp(_matrule->_rChild->_opType,"EncodeP") || |
|
785 !strcmp(_matrule->_rChild->_opType,"DecodeNKlass") || |
|
786 !strcmp(_matrule->_rChild->_opType,"EncodePKlass") || |
|
787 !strcmp(_matrule->_rChild->_opType,"LoadN") || |
|
788 !strcmp(_matrule->_rChild->_opType,"LoadNKlass") || |
|
789 !strcmp(_matrule->_rChild->_opType,"CreateEx") || // type of exception |
|
790 !strcmp(_matrule->_rChild->_opType,"CheckCastPP") || |
|
791 !strcmp(_matrule->_rChild->_opType,"GetAndSetP") || |
|
792 !strcmp(_matrule->_rChild->_opType,"GetAndSetN") || |
|
793 !strcmp(_matrule->_rChild->_opType,"CompareAndExchangeP") || |
|
794 !strcmp(_matrule->_rChild->_opType,"CompareAndExchangeN"))) return true; |
|
795 else if ( is_ideal_load() == Form::idealP ) return true; |
|
796 else if ( is_ideal_store() != Form::none ) return true; |
|
797 |
|
798 if (needs_base_oop_edge(globals)) return true; |
|
799 |
|
800 if (is_vector()) return true; |
|
801 if (is_mach_constant()) return true; |
|
802 |
|
803 return false; |
|
804 } |
|
805 |
|
806 |
|
807 // Access instr_cost attribute or return NULL. |
|
808 const char* InstructForm::cost() { |
|
809 for (Attribute* cur = _attribs; cur != NULL; cur = (Attribute*)cur->_next) { |
|
810 if( strcmp(cur->_ident,AttributeForm::_ins_cost) == 0 ) { |
|
811 return cur->_val; |
|
812 } |
|
813 } |
|
814 return NULL; |
|
815 } |
|
816 |
|
817 // Return count of top-level operands. |
|
818 uint InstructForm::num_opnds() { |
|
819 int num_opnds = _components.num_operands(); |
|
820 |
|
821 // Need special handling for matching some ideal nodes |
|
822 // i.e. Matching a return node |
|
823 /* |
|
824 if( _matrule ) { |
|
825 if( strcmp(_matrule->_opType,"Return" )==0 || |
|
826 strcmp(_matrule->_opType,"Halt" )==0 ) |
|
827 return 3; |
|
828 } |
|
829 */ |
|
830 return num_opnds; |
|
831 } |
|
832 |
|
833 const char* InstructForm::opnd_ident(int idx) { |
|
834 return _components.at(idx)->_name; |
|
835 } |
|
836 |
|
837 const char* InstructForm::unique_opnd_ident(uint idx) { |
|
838 uint i; |
|
839 for (i = 1; i < num_opnds(); ++i) { |
|
840 if (unique_opnds_idx(i) == idx) { |
|
841 break; |
|
842 } |
|
843 } |
|
844 return (_components.at(i) != NULL) ? _components.at(i)->_name : ""; |
|
845 } |
|
846 |
|
847 // Return count of unmatched operands. |
|
848 uint InstructForm::num_post_match_opnds() { |
|
849 uint num_post_match_opnds = _components.count(); |
|
850 uint num_match_opnds = _components.match_count(); |
|
851 num_post_match_opnds = num_post_match_opnds - num_match_opnds; |
|
852 |
|
853 return num_post_match_opnds; |
|
854 } |
|
855 |
|
856 // Return the number of leaves below this complex operand |
|
857 uint InstructForm::num_consts(FormDict &globals) const { |
|
858 if ( ! _matrule) return 0; |
|
859 |
|
860 // This is a recursive invocation on all operands in the matchrule |
|
861 return _matrule->num_consts(globals); |
|
862 } |
|
863 |
|
864 // Constants in match rule with specified type |
|
865 uint InstructForm::num_consts(FormDict &globals, Form::DataType type) const { |
|
866 if ( ! _matrule) return 0; |
|
867 |
|
868 // This is a recursive invocation on all operands in the matchrule |
|
869 return _matrule->num_consts(globals, type); |
|
870 } |
|
871 |
|
872 |
|
873 // Return the register class associated with 'leaf'. |
|
874 const char *InstructForm::out_reg_class(FormDict &globals) { |
|
875 assert( false, "InstructForm::out_reg_class(FormDict &globals); Not Implemented"); |
|
876 |
|
877 return NULL; |
|
878 } |
|
879 |
|
880 |
|
881 |
|
882 // Lookup the starting position of inputs we are interested in wrt. ideal nodes |
|
883 uint InstructForm::oper_input_base(FormDict &globals) { |
|
884 if( !_matrule ) return 1; // Skip control for most nodes |
|
885 |
|
886 // Need special handling for matching some ideal nodes |
|
887 // i.e. Matching a return node |
|
888 if( strcmp(_matrule->_opType,"Return" )==0 || |
|
889 strcmp(_matrule->_opType,"Rethrow" )==0 || |
|
890 strcmp(_matrule->_opType,"TailCall" )==0 || |
|
891 strcmp(_matrule->_opType,"TailJump" )==0 || |
|
892 strcmp(_matrule->_opType,"SafePoint" )==0 || |
|
893 strcmp(_matrule->_opType,"Halt" )==0 ) |
|
894 return AdlcVMDeps::Parms; // Skip the machine-state edges |
|
895 |
|
896 if( _matrule->_rChild && |
|
897 ( strcmp(_matrule->_rChild->_opType,"AryEq" )==0 || |
|
898 strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || |
|
899 strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || |
|
900 strcmp(_matrule->_rChild->_opType,"StrInflatedCopy" )==0 || |
|
901 strcmp(_matrule->_rChild->_opType,"StrCompressedCopy" )==0 || |
|
902 strcmp(_matrule->_rChild->_opType,"StrIndexOf")==0 || |
|
903 strcmp(_matrule->_rChild->_opType,"StrIndexOfChar")==0 || |
|
904 strcmp(_matrule->_rChild->_opType,"HasNegatives")==0 || |
|
905 strcmp(_matrule->_rChild->_opType,"EncodeISOArray")==0)) { |
|
906 // String.(compareTo/equals/indexOf) and Arrays.equals |
|
907 // and sun.nio.cs.iso8859_1$Encoder.EncodeISOArray |
|
908 // take 1 control and 1 memory edges. |
|
909 // Also String.(compressedCopy/inflatedCopy). |
|
910 return 2; |
|
911 } |
|
912 |
|
913 // Check for handling of 'Memory' input/edge in the ideal world. |
|
914 // The AD file writer is shielded from knowledge of these edges. |
|
915 int base = 1; // Skip control |
|
916 base += _matrule->needs_ideal_memory_edge(globals); |
|
917 |
|
918 // Also skip the base-oop value for uses of derived oops. |
|
919 // The AD file writer is shielded from knowledge of these edges. |
|
920 base += needs_base_oop_edge(globals); |
|
921 |
|
922 return base; |
|
923 } |
|
924 |
|
925 // This function determines the order of the MachOper in _opnds[] |
|
926 // by writing the operand names into the _components list. |
|
927 // |
|
928 // Implementation does not modify state of internal structures |
|
929 void InstructForm::build_components() { |
|
930 // Add top-level operands to the components |
|
931 if (_matrule) _matrule->append_components(_localNames, _components); |
|
932 |
|
933 // Add parameters that "do not appear in match rule". |
|
934 bool has_temp = false; |
|
935 const char *name; |
|
936 const char *kill_name = NULL; |
|
937 for (_parameters.reset(); (name = _parameters.iter()) != NULL;) { |
|
938 OperandForm *opForm = (OperandForm*)_localNames[name]; |
|
939 |
|
940 Effect* e = NULL; |
|
941 { |
|
942 const Form* form = _effects[name]; |
|
943 e = form ? form->is_effect() : NULL; |
|
944 } |
|
945 |
|
946 if (e != NULL) { |
|
947 has_temp |= e->is(Component::TEMP); |
|
948 |
|
949 // KILLs must be declared after any TEMPs because TEMPs are real |
|
950 // uses so their operand numbering must directly follow the real |
|
951 // inputs from the match rule. Fixing the numbering seems |
|
952 // complex so simply enforce the restriction during parse. |
|
953 if (kill_name != NULL && |
|
954 e->isa(Component::TEMP) && !e->isa(Component::DEF)) { |
|
955 OperandForm* kill = (OperandForm*)_localNames[kill_name]; |
|
956 globalAD->syntax_err(_linenum, "%s: %s %s must be at the end of the argument list\n", |
|
957 _ident, kill->_ident, kill_name); |
|
958 } else if (e->isa(Component::KILL) && !e->isa(Component::USE)) { |
|
959 kill_name = name; |
|
960 } |
|
961 } |
|
962 |
|
963 const Component *component = _components.search(name); |
|
964 if ( component == NULL ) { |
|
965 if (e) { |
|
966 _components.insert(name, opForm->_ident, e->_use_def, false); |
|
967 component = _components.search(name); |
|
968 if (component->isa(Component::USE) && !component->isa(Component::TEMP) && _matrule) { |
|
969 const Form *form = globalAD->globalNames()[component->_type]; |
|
970 assert( form, "component type must be a defined form"); |
|
971 OperandForm *op = form->is_operand(); |
|
972 if (op->_interface && op->_interface->is_RegInterface()) { |
|
973 globalAD->syntax_err(_linenum, "%s: illegal USE of non-input: %s %s\n", |
|
974 _ident, opForm->_ident, name); |
|
975 } |
|
976 } |
|
977 } else { |
|
978 // This would be a nice warning but it triggers in a few places in a benign way |
|
979 // if (_matrule != NULL && !expands()) { |
|
980 // globalAD->syntax_err(_linenum, "%s: %s %s not mentioned in effect or match rule\n", |
|
981 // _ident, opForm->_ident, name); |
|
982 // } |
|
983 _components.insert(name, opForm->_ident, Component::INVALID, false); |
|
984 } |
|
985 } |
|
986 else if (e) { |
|
987 // Component was found in the list |
|
988 // Check if there is a new effect that requires an extra component. |
|
989 // This happens when adding 'USE' to a component that is not yet one. |
|
990 if ((!component->isa( Component::USE) && ((e->_use_def & Component::USE) != 0))) { |
|
991 if (component->isa(Component::USE) && _matrule) { |
|
992 const Form *form = globalAD->globalNames()[component->_type]; |
|
993 assert( form, "component type must be a defined form"); |
|
994 OperandForm *op = form->is_operand(); |
|
995 if (op->_interface && op->_interface->is_RegInterface()) { |
|
996 globalAD->syntax_err(_linenum, "%s: illegal USE of non-input: %s %s\n", |
|
997 _ident, opForm->_ident, name); |
|
998 } |
|
999 } |
|
1000 _components.insert(name, opForm->_ident, e->_use_def, false); |
|
1001 } else { |
|
1002 Component *comp = (Component*)component; |
|
1003 comp->promote_use_def_info(e->_use_def); |
|
1004 } |
|
1005 // Component positions are zero based. |
|
1006 int pos = _components.operand_position(name); |
|
1007 assert( ! (component->isa(Component::DEF) && (pos >= 1)), |
|
1008 "Component::DEF can only occur in the first position"); |
|
1009 } |
|
1010 } |
|
1011 |
|
1012 // Resolving the interactions between expand rules and TEMPs would |
|
1013 // be complex so simply disallow it. |
|
1014 if (_matrule == NULL && has_temp) { |
|
1015 globalAD->syntax_err(_linenum, "%s: TEMPs without match rule isn't supported\n", _ident); |
|
1016 } |
|
1017 |
|
1018 return; |
|
1019 } |
|
1020 |
|
1021 // Return zero-based position in component list; -1 if not in list. |
|
1022 int InstructForm::operand_position(const char *name, int usedef) { |
|
1023 return unique_opnds_idx(_components.operand_position(name, usedef, this)); |
|
1024 } |
|
1025 |
|
1026 int InstructForm::operand_position_format(const char *name) { |
|
1027 return unique_opnds_idx(_components.operand_position_format(name, this)); |
|
1028 } |
|
1029 |
|
1030 // Return zero-based position in component list; -1 if not in list. |
|
1031 int InstructForm::label_position() { |
|
1032 return unique_opnds_idx(_components.label_position()); |
|
1033 } |
|
1034 |
|
1035 int InstructForm::method_position() { |
|
1036 return unique_opnds_idx(_components.method_position()); |
|
1037 } |
|
1038 |
|
1039 // Return number of relocation entries needed for this instruction. |
|
1040 uint InstructForm::reloc(FormDict &globals) { |
|
1041 uint reloc_entries = 0; |
|
1042 // Check for "Call" nodes |
|
1043 if ( is_ideal_call() ) ++reloc_entries; |
|
1044 if ( is_ideal_return() ) ++reloc_entries; |
|
1045 if ( is_ideal_safepoint() ) ++reloc_entries; |
|
1046 |
|
1047 |
|
1048 // Check if operands MAYBE oop pointers, by checking for ConP elements |
|
1049 // Proceed through the leaves of the match-tree and check for ConPs |
|
1050 if ( _matrule != NULL ) { |
|
1051 uint position = 0; |
|
1052 const char *result = NULL; |
|
1053 const char *name = NULL; |
|
1054 const char *opType = NULL; |
|
1055 while (_matrule->base_operand(position, globals, result, name, opType)) { |
|
1056 if ( strcmp(opType,"ConP") == 0 ) { |
|
1057 #ifdef SPARC |
|
1058 reloc_entries += 2; // 1 for sethi + 1 for setlo |
|
1059 #else |
|
1060 ++reloc_entries; |
|
1061 #endif |
|
1062 } |
|
1063 ++position; |
|
1064 } |
|
1065 } |
|
1066 |
|
1067 // Above is only a conservative estimate |
|
1068 // because it did not check contents of operand classes. |
|
1069 // !!!!! !!!!! |
|
1070 // Add 1 to reloc info for each operand class in the component list. |
|
1071 Component *comp; |
|
1072 _components.reset(); |
|
1073 while ( (comp = _components.iter()) != NULL ) { |
|
1074 const Form *form = globals[comp->_type]; |
|
1075 assert( form, "Did not find component's type in global names"); |
|
1076 const OpClassForm *opc = form->is_opclass(); |
|
1077 const OperandForm *oper = form->is_operand(); |
|
1078 if ( opc && (oper == NULL) ) { |
|
1079 ++reloc_entries; |
|
1080 } else if ( oper ) { |
|
1081 // floats and doubles loaded out of method's constant pool require reloc info |
|
1082 Form::DataType type = oper->is_base_constant(globals); |
|
1083 if ( (type == Form::idealF) || (type == Form::idealD) ) { |
|
1084 ++reloc_entries; |
|
1085 } |
|
1086 } |
|
1087 } |
|
1088 |
|
1089 // Float and Double constants may come from the CodeBuffer table |
|
1090 // and require relocatable addresses for access |
|
1091 // !!!!! |
|
1092 // Check for any component being an immediate float or double. |
|
1093 Form::DataType data_type = is_chain_of_constant(globals); |
|
1094 if( data_type==idealD || data_type==idealF ) { |
|
1095 #ifdef SPARC |
|
1096 // sparc required more relocation entries for floating constants |
|
1097 // (expires 9/98) |
|
1098 reloc_entries += 6; |
|
1099 #else |
|
1100 reloc_entries++; |
|
1101 #endif |
|
1102 } |
|
1103 |
|
1104 return reloc_entries; |
|
1105 } |
|
1106 |
|
1107 // Utility function defined in archDesc.cpp |
|
1108 extern bool is_def(int usedef); |
|
1109 |
|
1110 // Return the result of reducing an instruction |
|
1111 const char *InstructForm::reduce_result() { |
|
1112 const char* result = "Universe"; // default |
|
1113 _components.reset(); |
|
1114 Component *comp = _components.iter(); |
|
1115 if (comp != NULL && comp->isa(Component::DEF)) { |
|
1116 result = comp->_type; |
|
1117 // Override this if the rule is a store operation: |
|
1118 if (_matrule && _matrule->_rChild && |
|
1119 is_store_to_memory(_matrule->_rChild->_opType)) |
|
1120 result = "Universe"; |
|
1121 } |
|
1122 return result; |
|
1123 } |
|
1124 |
|
1125 // Return the name of the operand on the right hand side of the binary match |
|
1126 // Return NULL if there is no right hand side |
|
1127 const char *InstructForm::reduce_right(FormDict &globals) const { |
|
1128 if( _matrule == NULL ) return NULL; |
|
1129 return _matrule->reduce_right(globals); |
|
1130 } |
|
1131 |
|
1132 // Similar for left |
|
1133 const char *InstructForm::reduce_left(FormDict &globals) const { |
|
1134 if( _matrule == NULL ) return NULL; |
|
1135 return _matrule->reduce_left(globals); |
|
1136 } |
|
1137 |
|
1138 |
|
1139 // Base class for this instruction, MachNode except for calls |
|
1140 const char *InstructForm::mach_base_class(FormDict &globals) const { |
|
1141 if( is_ideal_call() == Form::JAVA_STATIC ) { |
|
1142 return "MachCallStaticJavaNode"; |
|
1143 } |
|
1144 else if( is_ideal_call() == Form::JAVA_DYNAMIC ) { |
|
1145 return "MachCallDynamicJavaNode"; |
|
1146 } |
|
1147 else if( is_ideal_call() == Form::JAVA_RUNTIME ) { |
|
1148 return "MachCallRuntimeNode"; |
|
1149 } |
|
1150 else if( is_ideal_call() == Form::JAVA_LEAF ) { |
|
1151 return "MachCallLeafNode"; |
|
1152 } |
|
1153 else if (is_ideal_return()) { |
|
1154 return "MachReturnNode"; |
|
1155 } |
|
1156 else if (is_ideal_halt()) { |
|
1157 return "MachHaltNode"; |
|
1158 } |
|
1159 else if (is_ideal_safepoint()) { |
|
1160 return "MachSafePointNode"; |
|
1161 } |
|
1162 else if (is_ideal_if()) { |
|
1163 return "MachIfNode"; |
|
1164 } |
|
1165 else if (is_ideal_goto()) { |
|
1166 return "MachGotoNode"; |
|
1167 } |
|
1168 else if (is_ideal_fastlock()) { |
|
1169 return "MachFastLockNode"; |
|
1170 } |
|
1171 else if (is_ideal_nop()) { |
|
1172 return "MachNopNode"; |
|
1173 } |
|
1174 else if (is_mach_constant()) { |
|
1175 return "MachConstantNode"; |
|
1176 } |
|
1177 else if (captures_bottom_type(globals)) { |
|
1178 return "MachTypeNode"; |
|
1179 } else { |
|
1180 return "MachNode"; |
|
1181 } |
|
1182 assert( false, "ShouldNotReachHere()"); |
|
1183 return NULL; |
|
1184 } |
|
1185 |
|
1186 // Compare the instruction predicates for textual equality |
|
1187 bool equivalent_predicates( const InstructForm *instr1, const InstructForm *instr2 ) { |
|
1188 const Predicate *pred1 = instr1->_predicate; |
|
1189 const Predicate *pred2 = instr2->_predicate; |
|
1190 if( pred1 == NULL && pred2 == NULL ) { |
|
1191 // no predicates means they are identical |
|
1192 return true; |
|
1193 } |
|
1194 if( pred1 != NULL && pred2 != NULL ) { |
|
1195 // compare the predicates |
|
1196 if (ADLParser::equivalent_expressions(pred1->_pred, pred2->_pred)) { |
|
1197 return true; |
|
1198 } |
|
1199 } |
|
1200 |
|
1201 return false; |
|
1202 } |
|
1203 |
|
1204 // Check if this instruction can cisc-spill to 'alternate' |
|
1205 bool InstructForm::cisc_spills_to(ArchDesc &AD, InstructForm *instr) { |
|
1206 assert( _matrule != NULL && instr->_matrule != NULL, "must have match rules"); |
|
1207 // Do not replace if a cisc-version has been found. |
|
1208 if( cisc_spill_operand() != Not_cisc_spillable ) return false; |
|
1209 |
|
1210 int cisc_spill_operand = Maybe_cisc_spillable; |
|
1211 char *result = NULL; |
|
1212 char *result2 = NULL; |
|
1213 const char *op_name = NULL; |
|
1214 const char *reg_type = NULL; |
|
1215 FormDict &globals = AD.globalNames(); |
|
1216 cisc_spill_operand = _matrule->matchrule_cisc_spill_match(globals, AD.get_registers(), instr->_matrule, op_name, reg_type); |
|
1217 if( (cisc_spill_operand != Not_cisc_spillable) && (op_name != NULL) && equivalent_predicates(this, instr) ) { |
|
1218 cisc_spill_operand = operand_position(op_name, Component::USE); |
|
1219 int def_oper = operand_position(op_name, Component::DEF); |
|
1220 if( def_oper == NameList::Not_in_list && instr->num_opnds() == num_opnds()) { |
|
1221 // Do not support cisc-spilling for destination operands and |
|
1222 // make sure they have the same number of operands. |
|
1223 _cisc_spill_alternate = instr; |
|
1224 instr->set_cisc_alternate(true); |
|
1225 if( AD._cisc_spill_debug ) { |
|
1226 fprintf(stderr, "Instruction %s cisc-spills-to %s\n", _ident, instr->_ident); |
|
1227 fprintf(stderr, " using operand %s %s at index %d\n", reg_type, op_name, cisc_spill_operand); |
|
1228 } |
|
1229 // Record that a stack-version of the reg_mask is needed |
|
1230 // !!!!! |
|
1231 OperandForm *oper = (OperandForm*)(globals[reg_type]->is_operand()); |
|
1232 assert( oper != NULL, "cisc-spilling non operand"); |
|
1233 const char *reg_class_name = oper->constrained_reg_class(); |
|
1234 AD.set_stack_or_reg(reg_class_name); |
|
1235 const char *reg_mask_name = AD.reg_mask(*oper); |
|
1236 set_cisc_reg_mask_name(reg_mask_name); |
|
1237 const char *stack_or_reg_mask_name = AD.stack_or_reg_mask(*oper); |
|
1238 } else { |
|
1239 cisc_spill_operand = Not_cisc_spillable; |
|
1240 } |
|
1241 } else { |
|
1242 cisc_spill_operand = Not_cisc_spillable; |
|
1243 } |
|
1244 |
|
1245 set_cisc_spill_operand(cisc_spill_operand); |
|
1246 return (cisc_spill_operand != Not_cisc_spillable); |
|
1247 } |
|
1248 |
|
1249 // Check to see if this instruction can be replaced with the short branch |
|
1250 // instruction `short-branch' |
|
1251 bool InstructForm::check_branch_variant(ArchDesc &AD, InstructForm *short_branch) { |
|
1252 if (_matrule != NULL && |
|
1253 this != short_branch && // Don't match myself |
|
1254 !is_short_branch() && // Don't match another short branch variant |
|
1255 reduce_result() != NULL && |
|
1256 strstr(_ident, "restoreMask") == NULL && // Don't match side effects |
|
1257 strcmp(reduce_result(), short_branch->reduce_result()) == 0 && |
|
1258 _matrule->equivalent(AD.globalNames(), short_branch->_matrule)) { |
|
1259 // The instructions are equivalent. |
|
1260 |
|
1261 // Now verify that both instructions have the same parameters and |
|
1262 // the same effects. Both branch forms should have the same inputs |
|
1263 // and resulting projections to correctly replace a long branch node |
|
1264 // with corresponding short branch node during code generation. |
|
1265 |
|
1266 bool different = false; |
|
1267 if (short_branch->_components.count() != _components.count()) { |
|
1268 different = true; |
|
1269 } else if (_components.count() > 0) { |
|
1270 short_branch->_components.reset(); |
|
1271 _components.reset(); |
|
1272 Component *comp; |
|
1273 while ((comp = _components.iter()) != NULL) { |
|
1274 Component *short_comp = short_branch->_components.iter(); |
|
1275 if (short_comp == NULL || |
|
1276 short_comp->_type != comp->_type || |
|
1277 short_comp->_usedef != comp->_usedef) { |
|
1278 different = true; |
|
1279 break; |
|
1280 } |
|
1281 } |
|
1282 if (short_branch->_components.iter() != NULL) |
|
1283 different = true; |
|
1284 } |
|
1285 if (different) { |
|
1286 globalAD->syntax_err(short_branch->_linenum, "Instruction %s and its short form %s have different parameters\n", _ident, short_branch->_ident); |
|
1287 } |
|
1288 if (AD._adl_debug > 1 || AD._short_branch_debug) { |
|
1289 fprintf(stderr, "Instruction %s has short form %s\n", _ident, short_branch->_ident); |
|
1290 } |
|
1291 _short_branch_form = short_branch; |
|
1292 return true; |
|
1293 } |
|
1294 return false; |
|
1295 } |
|
1296 |
|
1297 |
|
1298 // --------------------------- FILE *output_routines |
|
1299 // |
|
1300 // Generate the format call for the replacement variable |
|
1301 void InstructForm::rep_var_format(FILE *fp, const char *rep_var) { |
|
1302 // Handle special constant table variables. |
|
1303 if (strcmp(rep_var, "constanttablebase") == 0) { |
|
1304 fprintf(fp, "char reg[128]; ra->dump_register(in(mach_constant_base_node_input()), reg);\n"); |
|
1305 fprintf(fp, " st->print(\"%%s\", reg);\n"); |
|
1306 return; |
|
1307 } |
|
1308 if (strcmp(rep_var, "constantoffset") == 0) { |
|
1309 fprintf(fp, "st->print(\"#%%d\", constant_offset_unchecked());\n"); |
|
1310 return; |
|
1311 } |
|
1312 if (strcmp(rep_var, "constantaddress") == 0) { |
|
1313 fprintf(fp, "st->print(\"constant table base + #%%d\", constant_offset_unchecked());\n"); |
|
1314 return; |
|
1315 } |
|
1316 |
|
1317 // Find replacement variable's type |
|
1318 const Form *form = _localNames[rep_var]; |
|
1319 if (form == NULL) { |
|
1320 globalAD->syntax_err(_linenum, "Unknown replacement variable %s in format statement of %s.", |
|
1321 rep_var, _ident); |
|
1322 return; |
|
1323 } |
|
1324 OpClassForm *opc = form->is_opclass(); |
|
1325 assert( opc, "replacement variable was not found in local names"); |
|
1326 // Lookup the index position of the replacement variable |
|
1327 int idx = operand_position_format(rep_var); |
|
1328 if ( idx == -1 ) { |
|
1329 globalAD->syntax_err(_linenum, "Could not find replacement variable %s in format statement of %s.\n", |
|
1330 rep_var, _ident); |
|
1331 assert(strcmp(opc->_ident, "label") == 0, "Unimplemented"); |
|
1332 return; |
|
1333 } |
|
1334 |
|
1335 if (is_noninput_operand(idx)) { |
|
1336 // This component isn't in the input array. Print out the static |
|
1337 // name of the register. |
|
1338 OperandForm* oper = form->is_operand(); |
|
1339 if (oper != NULL && oper->is_bound_register()) { |
|
1340 const RegDef* first = oper->get_RegClass()->find_first_elem(); |
|
1341 fprintf(fp, " st->print_raw(\"%s\");\n", first->_regname); |
|
1342 } else { |
|
1343 globalAD->syntax_err(_linenum, "In %s can't find format for %s %s", _ident, opc->_ident, rep_var); |
|
1344 } |
|
1345 } else { |
|
1346 // Output the format call for this operand |
|
1347 fprintf(fp,"opnd_array(%d)->",idx); |
|
1348 if (idx == 0) |
|
1349 fprintf(fp,"int_format(ra, this, st); // %s\n", rep_var); |
|
1350 else |
|
1351 fprintf(fp,"ext_format(ra, this,idx%d, st); // %s\n", idx, rep_var ); |
|
1352 } |
|
1353 } |
|
1354 |
|
1355 // Seach through operands to determine parameters unique positions. |
|
1356 void InstructForm::set_unique_opnds() { |
|
1357 uint* uniq_idx = NULL; |
|
1358 uint nopnds = num_opnds(); |
|
1359 uint num_uniq = nopnds; |
|
1360 uint i; |
|
1361 _uniq_idx_length = 0; |
|
1362 if (nopnds > 0) { |
|
1363 // Allocate index array. Worst case we're mapping from each |
|
1364 // component back to an index and any DEF always goes at 0 so the |
|
1365 // length of the array has to be the number of components + 1. |
|
1366 _uniq_idx_length = _components.count() + 1; |
|
1367 uniq_idx = (uint*) malloc(sizeof(uint) * _uniq_idx_length); |
|
1368 for (i = 0; i < _uniq_idx_length; i++) { |
|
1369 uniq_idx[i] = i; |
|
1370 } |
|
1371 } |
|
1372 // Do it only if there is a match rule and no expand rule. With an |
|
1373 // expand rule it is done by creating new mach node in Expand() |
|
1374 // method. |
|
1375 if (nopnds > 0 && _matrule != NULL && _exprule == NULL) { |
|
1376 const char *name; |
|
1377 uint count; |
|
1378 bool has_dupl_use = false; |
|
1379 |
|
1380 _parameters.reset(); |
|
1381 while ((name = _parameters.iter()) != NULL) { |
|
1382 count = 0; |
|
1383 uint position = 0; |
|
1384 uint uniq_position = 0; |
|
1385 _components.reset(); |
|
1386 Component *comp = NULL; |
|
1387 if (sets_result()) { |
|
1388 comp = _components.iter(); |
|
1389 position++; |
|
1390 } |
|
1391 // The next code is copied from the method operand_position(). |
|
1392 for (; (comp = _components.iter()) != NULL; ++position) { |
|
1393 // When the first component is not a DEF, |
|
1394 // leave space for the result operand! |
|
1395 if (position==0 && (!comp->isa(Component::DEF))) { |
|
1396 ++position; |
|
1397 } |
|
1398 if (strcmp(name, comp->_name) == 0) { |
|
1399 if (++count > 1) { |
|
1400 assert(position < _uniq_idx_length, "out of bounds"); |
|
1401 uniq_idx[position] = uniq_position; |
|
1402 has_dupl_use = true; |
|
1403 } else { |
|
1404 uniq_position = position; |
|
1405 } |
|
1406 } |
|
1407 if (comp->isa(Component::DEF) && comp->isa(Component::USE)) { |
|
1408 ++position; |
|
1409 if (position != 1) |
|
1410 --position; // only use two slots for the 1st USE_DEF |
|
1411 } |
|
1412 } |
|
1413 } |
|
1414 if (has_dupl_use) { |
|
1415 for (i = 1; i < nopnds; i++) { |
|
1416 if (i != uniq_idx[i]) { |
|
1417 break; |
|
1418 } |
|
1419 } |
|
1420 uint j = i; |
|
1421 for (; i < nopnds; i++) { |
|
1422 if (i == uniq_idx[i]) { |
|
1423 uniq_idx[i] = j++; |
|
1424 } |
|
1425 } |
|
1426 num_uniq = j; |
|
1427 } |
|
1428 } |
|
1429 _uniq_idx = uniq_idx; |
|
1430 _num_uniq = num_uniq; |
|
1431 } |
|
1432 |
|
1433 // Generate index values needed for determining the operand position |
|
1434 void InstructForm::index_temps(FILE *fp, FormDict &globals, const char *prefix, const char *receiver) { |
|
1435 uint idx = 0; // position of operand in match rule |
|
1436 int cur_num_opnds = num_opnds(); |
|
1437 |
|
1438 // Compute the index into vector of operand pointers: |
|
1439 // idx0=0 is used to indicate that info comes from this same node, not from input edge. |
|
1440 // idx1 starts at oper_input_base() |
|
1441 if ( cur_num_opnds >= 1 ) { |
|
1442 fprintf(fp," // Start at oper_input_base() and count operands\n"); |
|
1443 fprintf(fp," unsigned %sidx0 = %d;\n", prefix, oper_input_base(globals)); |
|
1444 fprintf(fp," unsigned %sidx1 = %d;", prefix, oper_input_base(globals)); |
|
1445 fprintf(fp," \t// %s\n", unique_opnd_ident(1)); |
|
1446 |
|
1447 // Generate starting points for other unique operands if they exist |
|
1448 for ( idx = 2; idx < num_unique_opnds(); ++idx ) { |
|
1449 if( *receiver == 0 ) { |
|
1450 fprintf(fp," unsigned %sidx%d = %sidx%d + opnd_array(%d)->num_edges();", |
|
1451 prefix, idx, prefix, idx-1, idx-1 ); |
|
1452 } else { |
|
1453 fprintf(fp," unsigned %sidx%d = %sidx%d + %s_opnds[%d]->num_edges();", |
|
1454 prefix, idx, prefix, idx-1, receiver, idx-1 ); |
|
1455 } |
|
1456 fprintf(fp," \t// %s\n", unique_opnd_ident(idx)); |
|
1457 } |
|
1458 } |
|
1459 if( *receiver != 0 ) { |
|
1460 // This value is used by generate_peepreplace when copying a node. |
|
1461 // Don't emit it in other cases since it can hide bugs with the |
|
1462 // use invalid idx's. |
|
1463 fprintf(fp," unsigned %sidx%d = %sreq(); \n", prefix, idx, receiver); |
|
1464 } |
|
1465 |
|
1466 } |
|
1467 |
|
1468 // --------------------------- |
|
1469 bool InstructForm::verify() { |
|
1470 // !!!!! !!!!! |
|
1471 // Check that a "label" operand occurs last in the operand list, if present |
|
1472 return true; |
|
1473 } |
|
1474 |
|
1475 void InstructForm::dump() { |
|
1476 output(stderr); |
|
1477 } |
|
1478 |
|
1479 void InstructForm::output(FILE *fp) { |
|
1480 fprintf(fp,"\nInstruction: %s\n", (_ident?_ident:"")); |
|
1481 if (_matrule) _matrule->output(fp); |
|
1482 if (_insencode) _insencode->output(fp); |
|
1483 if (_constant) _constant->output(fp); |
|
1484 if (_opcode) _opcode->output(fp); |
|
1485 if (_attribs) _attribs->output(fp); |
|
1486 if (_predicate) _predicate->output(fp); |
|
1487 if (_effects.Size()) { |
|
1488 fprintf(fp,"Effects\n"); |
|
1489 _effects.dump(); |
|
1490 } |
|
1491 if (_exprule) _exprule->output(fp); |
|
1492 if (_rewrule) _rewrule->output(fp); |
|
1493 if (_format) _format->output(fp); |
|
1494 if (_peephole) _peephole->output(fp); |
|
1495 } |
|
1496 |
|
1497 void MachNodeForm::dump() { |
|
1498 output(stderr); |
|
1499 } |
|
1500 |
|
1501 void MachNodeForm::output(FILE *fp) { |
|
1502 fprintf(fp,"\nMachNode: %s\n", (_ident?_ident:"")); |
|
1503 } |
|
1504 |
|
1505 //------------------------------build_predicate-------------------------------- |
|
1506 // Build instruction predicates. If the user uses the same operand name |
|
1507 // twice, we need to check that the operands are pointer-eequivalent in |
|
1508 // the DFA during the labeling process. |
|
1509 Predicate *InstructForm::build_predicate() { |
|
1510 const int buflen = 1024; |
|
1511 char buf[buflen], *s=buf; |
|
1512 Dict names(cmpstr,hashstr,Form::arena); // Map Names to counts |
|
1513 |
|
1514 MatchNode *mnode = |
|
1515 strcmp(_matrule->_opType, "Set") ? _matrule : _matrule->_rChild; |
|
1516 mnode->count_instr_names(names); |
|
1517 |
|
1518 uint first = 1; |
|
1519 // Start with the predicate supplied in the .ad file. |
|
1520 if (_predicate) { |
|
1521 if (first) first = 0; |
|
1522 strcpy(s, "("); s += strlen(s); |
|
1523 strncpy(s, _predicate->_pred, buflen - strlen(s) - 1); |
|
1524 s += strlen(s); |
|
1525 strcpy(s, ")"); s += strlen(s); |
|
1526 } |
|
1527 for( DictI i(&names); i.test(); ++i ) { |
|
1528 uintptr_t cnt = (uintptr_t)i._value; |
|
1529 if( cnt > 1 ) { // Need a predicate at all? |
|
1530 assert( cnt == 2, "Unimplemented" ); |
|
1531 // Handle many pairs |
|
1532 if( first ) first=0; |
|
1533 else { // All tests must pass, so use '&&' |
|
1534 strcpy(s," && "); |
|
1535 s += strlen(s); |
|
1536 } |
|
1537 // Add predicate to working buffer |
|
1538 sprintf(s,"/*%s*/(",(char*)i._key); |
|
1539 s += strlen(s); |
|
1540 mnode->build_instr_pred(s,(char*)i._key,0); |
|
1541 s += strlen(s); |
|
1542 strcpy(s," == "); s += strlen(s); |
|
1543 mnode->build_instr_pred(s,(char*)i._key,1); |
|
1544 s += strlen(s); |
|
1545 strcpy(s,")"); s += strlen(s); |
|
1546 } |
|
1547 } |
|
1548 if( s == buf ) s = NULL; |
|
1549 else { |
|
1550 assert( strlen(buf) < sizeof(buf), "String buffer overflow" ); |
|
1551 s = strdup(buf); |
|
1552 } |
|
1553 return new Predicate(s); |
|
1554 } |
|
1555 |
|
1556 //------------------------------EncodeForm------------------------------------- |
|
1557 // Constructor |
|
1558 EncodeForm::EncodeForm() |
|
1559 : _encClass(cmpstr,hashstr, Form::arena) { |
|
1560 } |
|
1561 EncodeForm::~EncodeForm() { |
|
1562 } |
|
1563 |
|
1564 // record a new register class |
|
1565 EncClass *EncodeForm::add_EncClass(const char *className) { |
|
1566 EncClass *encClass = new EncClass(className); |
|
1567 _eclasses.addName(className); |
|
1568 _encClass.Insert(className,encClass); |
|
1569 return encClass; |
|
1570 } |
|
1571 |
|
1572 // Lookup the function body for an encoding class |
|
1573 EncClass *EncodeForm::encClass(const char *className) { |
|
1574 assert( className != NULL, "Must provide a defined encoding name"); |
|
1575 |
|
1576 EncClass *encClass = (EncClass*)_encClass[className]; |
|
1577 return encClass; |
|
1578 } |
|
1579 |
|
1580 // Lookup the function body for an encoding class |
|
1581 const char *EncodeForm::encClassBody(const char *className) { |
|
1582 if( className == NULL ) return NULL; |
|
1583 |
|
1584 EncClass *encClass = (EncClass*)_encClass[className]; |
|
1585 assert( encClass != NULL, "Encode Class is missing."); |
|
1586 encClass->_code.reset(); |
|
1587 const char *code = (const char*)encClass->_code.iter(); |
|
1588 assert( code != NULL, "Found an empty encode class body."); |
|
1589 |
|
1590 return code; |
|
1591 } |
|
1592 |
|
1593 // Lookup the function body for an encoding class |
|
1594 const char *EncodeForm::encClassPrototype(const char *className) { |
|
1595 assert( className != NULL, "Encode class name must be non NULL."); |
|
1596 |
|
1597 return className; |
|
1598 } |
|
1599 |
|
1600 void EncodeForm::dump() { // Debug printer |
|
1601 output(stderr); |
|
1602 } |
|
1603 |
|
1604 void EncodeForm::output(FILE *fp) { // Write info to output files |
|
1605 const char *name; |
|
1606 fprintf(fp,"\n"); |
|
1607 fprintf(fp,"-------------------- Dump EncodeForm --------------------\n"); |
|
1608 for (_eclasses.reset(); (name = _eclasses.iter()) != NULL;) { |
|
1609 ((EncClass*)_encClass[name])->output(fp); |
|
1610 } |
|
1611 fprintf(fp,"-------------------- end EncodeForm --------------------\n"); |
|
1612 } |
|
1613 //------------------------------EncClass--------------------------------------- |
|
1614 EncClass::EncClass(const char *name) |
|
1615 : _localNames(cmpstr,hashstr, Form::arena), _name(name) { |
|
1616 } |
|
1617 EncClass::~EncClass() { |
|
1618 } |
|
1619 |
|
1620 // Add a parameter <type,name> pair |
|
1621 void EncClass::add_parameter(const char *parameter_type, const char *parameter_name) { |
|
1622 _parameter_type.addName( parameter_type ); |
|
1623 _parameter_name.addName( parameter_name ); |
|
1624 } |
|
1625 |
|
1626 // Verify operand types in parameter list |
|
1627 bool EncClass::check_parameter_types(FormDict &globals) { |
|
1628 // !!!!! |
|
1629 return false; |
|
1630 } |
|
1631 |
|
1632 // Add the decomposed "code" sections of an encoding's code-block |
|
1633 void EncClass::add_code(const char *code) { |
|
1634 _code.addName(code); |
|
1635 } |
|
1636 |
|
1637 // Add the decomposed "replacement variables" of an encoding's code-block |
|
1638 void EncClass::add_rep_var(char *replacement_var) { |
|
1639 _code.addName(NameList::_signal); |
|
1640 _rep_vars.addName(replacement_var); |
|
1641 } |
|
1642 |
|
1643 // Lookup the function body for an encoding class |
|
1644 int EncClass::rep_var_index(const char *rep_var) { |
|
1645 uint position = 0; |
|
1646 const char *name = NULL; |
|
1647 |
|
1648 _parameter_name.reset(); |
|
1649 while ( (name = _parameter_name.iter()) != NULL ) { |
|
1650 if ( strcmp(rep_var,name) == 0 ) return position; |
|
1651 ++position; |
|
1652 } |
|
1653 |
|
1654 return -1; |
|
1655 } |
|
1656 |
|
1657 // Check after parsing |
|
1658 bool EncClass::verify() { |
|
1659 // 1!!!! |
|
1660 // Check that each replacement variable, '$name' in architecture description |
|
1661 // is actually a local variable for this encode class, or a reserved name |
|
1662 // "primary, secondary, tertiary" |
|
1663 return true; |
|
1664 } |
|
1665 |
|
1666 void EncClass::dump() { |
|
1667 output(stderr); |
|
1668 } |
|
1669 |
|
1670 // Write info to output files |
|
1671 void EncClass::output(FILE *fp) { |
|
1672 fprintf(fp,"EncClass: %s", (_name ? _name : "")); |
|
1673 |
|
1674 // Output the parameter list |
|
1675 _parameter_type.reset(); |
|
1676 _parameter_name.reset(); |
|
1677 const char *type = _parameter_type.iter(); |
|
1678 const char *name = _parameter_name.iter(); |
|
1679 fprintf(fp, " ( "); |
|
1680 for ( ; (type != NULL) && (name != NULL); |
|
1681 (type = _parameter_type.iter()), (name = _parameter_name.iter()) ) { |
|
1682 fprintf(fp, " %s %s,", type, name); |
|
1683 } |
|
1684 fprintf(fp, " ) "); |
|
1685 |
|
1686 // Output the code block |
|
1687 _code.reset(); |
|
1688 _rep_vars.reset(); |
|
1689 const char *code; |
|
1690 while ( (code = _code.iter()) != NULL ) { |
|
1691 if ( _code.is_signal(code) ) { |
|
1692 // A replacement variable |
|
1693 const char *rep_var = _rep_vars.iter(); |
|
1694 fprintf(fp,"($%s)", rep_var); |
|
1695 } else { |
|
1696 // A section of code |
|
1697 fprintf(fp,"%s", code); |
|
1698 } |
|
1699 } |
|
1700 |
|
1701 } |
|
1702 |
|
1703 //------------------------------Opcode----------------------------------------- |
|
1704 Opcode::Opcode(char *primary, char *secondary, char *tertiary) |
|
1705 : _primary(primary), _secondary(secondary), _tertiary(tertiary) { |
|
1706 } |
|
1707 |
|
1708 Opcode::~Opcode() { |
|
1709 } |
|
1710 |
|
1711 Opcode::opcode_type Opcode::as_opcode_type(const char *param) { |
|
1712 if( strcmp(param,"primary") == 0 ) { |
|
1713 return Opcode::PRIMARY; |
|
1714 } |
|
1715 else if( strcmp(param,"secondary") == 0 ) { |
|
1716 return Opcode::SECONDARY; |
|
1717 } |
|
1718 else if( strcmp(param,"tertiary") == 0 ) { |
|
1719 return Opcode::TERTIARY; |
|
1720 } |
|
1721 return Opcode::NOT_AN_OPCODE; |
|
1722 } |
|
1723 |
|
1724 bool Opcode::print_opcode(FILE *fp, Opcode::opcode_type desired_opcode) { |
|
1725 // Default values previously provided by MachNode::primary()... |
|
1726 const char *description = NULL; |
|
1727 const char *value = NULL; |
|
1728 // Check if user provided any opcode definitions |
|
1729 if( this != NULL ) { |
|
1730 // Update 'value' if user provided a definition in the instruction |
|
1731 switch (desired_opcode) { |
|
1732 case PRIMARY: |
|
1733 description = "primary()"; |
|
1734 if( _primary != NULL) { value = _primary; } |
|
1735 break; |
|
1736 case SECONDARY: |
|
1737 description = "secondary()"; |
|
1738 if( _secondary != NULL ) { value = _secondary; } |
|
1739 break; |
|
1740 case TERTIARY: |
|
1741 description = "tertiary()"; |
|
1742 if( _tertiary != NULL ) { value = _tertiary; } |
|
1743 break; |
|
1744 default: |
|
1745 assert( false, "ShouldNotReachHere();"); |
|
1746 break; |
|
1747 } |
|
1748 } |
|
1749 if (value != NULL) { |
|
1750 fprintf(fp, "(%s /*%s*/)", value, description); |
|
1751 } |
|
1752 return value != NULL; |
|
1753 } |
|
1754 |
|
1755 void Opcode::dump() { |
|
1756 output(stderr); |
|
1757 } |
|
1758 |
|
1759 // Write info to output files |
|
1760 void Opcode::output(FILE *fp) { |
|
1761 if (_primary != NULL) fprintf(fp,"Primary opcode: %s\n", _primary); |
|
1762 if (_secondary != NULL) fprintf(fp,"Secondary opcode: %s\n", _secondary); |
|
1763 if (_tertiary != NULL) fprintf(fp,"Tertiary opcode: %s\n", _tertiary); |
|
1764 } |
|
1765 |
|
1766 //------------------------------InsEncode-------------------------------------- |
|
1767 InsEncode::InsEncode() { |
|
1768 } |
|
1769 InsEncode::~InsEncode() { |
|
1770 } |
|
1771 |
|
1772 // Add "encode class name" and its parameters |
|
1773 NameAndList *InsEncode::add_encode(char *encoding) { |
|
1774 assert( encoding != NULL, "Must provide name for encoding"); |
|
1775 |
|
1776 // add_parameter(NameList::_signal); |
|
1777 NameAndList *encode = new NameAndList(encoding); |
|
1778 _encoding.addName((char*)encode); |
|
1779 |
|
1780 return encode; |
|
1781 } |
|
1782 |
|
1783 // Access the list of encodings |
|
1784 void InsEncode::reset() { |
|
1785 _encoding.reset(); |
|
1786 // _parameter.reset(); |
|
1787 } |
|
1788 const char* InsEncode::encode_class_iter() { |
|
1789 NameAndList *encode_class = (NameAndList*)_encoding.iter(); |
|
1790 return ( encode_class != NULL ? encode_class->name() : NULL ); |
|
1791 } |
|
1792 // Obtain parameter name from zero based index |
|
1793 const char *InsEncode::rep_var_name(InstructForm &inst, uint param_no) { |
|
1794 NameAndList *params = (NameAndList*)_encoding.current(); |
|
1795 assert( params != NULL, "Internal Error"); |
|
1796 const char *param = (*params)[param_no]; |
|
1797 |
|
1798 // Remove '$' if parser placed it there. |
|
1799 return ( param != NULL && *param == '$') ? (param+1) : param; |
|
1800 } |
|
1801 |
|
1802 void InsEncode::dump() { |
|
1803 output(stderr); |
|
1804 } |
|
1805 |
|
1806 // Write info to output files |
|
1807 void InsEncode::output(FILE *fp) { |
|
1808 NameAndList *encoding = NULL; |
|
1809 const char *parameter = NULL; |
|
1810 |
|
1811 fprintf(fp,"InsEncode: "); |
|
1812 _encoding.reset(); |
|
1813 |
|
1814 while ( (encoding = (NameAndList*)_encoding.iter()) != 0 ) { |
|
1815 // Output the encoding being used |
|
1816 fprintf(fp,"%s(", encoding->name() ); |
|
1817 |
|
1818 // Output its parameter list, if any |
|
1819 bool first_param = true; |
|
1820 encoding->reset(); |
|
1821 while ( (parameter = encoding->iter()) != 0 ) { |
|
1822 // Output the ',' between parameters |
|
1823 if ( ! first_param ) fprintf(fp,", "); |
|
1824 first_param = false; |
|
1825 // Output the parameter |
|
1826 fprintf(fp,"%s", parameter); |
|
1827 } // done with parameters |
|
1828 fprintf(fp,") "); |
|
1829 } // done with encodings |
|
1830 |
|
1831 fprintf(fp,"\n"); |
|
1832 } |
|
1833 |
|
1834 //------------------------------Effect----------------------------------------- |
|
1835 static int effect_lookup(const char *name) { |
|
1836 if (!strcmp(name, "USE")) return Component::USE; |
|
1837 if (!strcmp(name, "DEF")) return Component::DEF; |
|
1838 if (!strcmp(name, "USE_DEF")) return Component::USE_DEF; |
|
1839 if (!strcmp(name, "KILL")) return Component::KILL; |
|
1840 if (!strcmp(name, "USE_KILL")) return Component::USE_KILL; |
|
1841 if (!strcmp(name, "TEMP")) return Component::TEMP; |
|
1842 if (!strcmp(name, "TEMP_DEF")) return Component::TEMP_DEF; |
|
1843 if (!strcmp(name, "INVALID")) return Component::INVALID; |
|
1844 if (!strcmp(name, "CALL")) return Component::CALL; |
|
1845 assert(false,"Invalid effect name specified\n"); |
|
1846 return Component::INVALID; |
|
1847 } |
|
1848 |
|
1849 const char *Component::getUsedefName() { |
|
1850 switch (_usedef) { |
|
1851 case Component::INVALID: return "INVALID"; break; |
|
1852 case Component::USE: return "USE"; break; |
|
1853 case Component::USE_DEF: return "USE_DEF"; break; |
|
1854 case Component::USE_KILL: return "USE_KILL"; break; |
|
1855 case Component::KILL: return "KILL"; break; |
|
1856 case Component::TEMP: return "TEMP"; break; |
|
1857 case Component::TEMP_DEF: return "TEMP_DEF"; break; |
|
1858 case Component::DEF: return "DEF"; break; |
|
1859 case Component::CALL: return "CALL"; break; |
|
1860 default: assert(false, "unknown effect"); |
|
1861 } |
|
1862 return "Undefined Use/Def info"; |
|
1863 } |
|
1864 |
|
1865 Effect::Effect(const char *name) : _name(name), _use_def(effect_lookup(name)) { |
|
1866 _ftype = Form::EFF; |
|
1867 } |
|
1868 |
|
1869 Effect::~Effect() { |
|
1870 } |
|
1871 |
|
1872 // Dynamic type check |
|
1873 Effect *Effect::is_effect() const { |
|
1874 return (Effect*)this; |
|
1875 } |
|
1876 |
|
1877 |
|
1878 // True if this component is equal to the parameter. |
|
1879 bool Effect::is(int use_def_kill_enum) const { |
|
1880 return (_use_def == use_def_kill_enum ? true : false); |
|
1881 } |
|
1882 // True if this component is used/def'd/kill'd as the parameter suggests. |
|
1883 bool Effect::isa(int use_def_kill_enum) const { |
|
1884 return (_use_def & use_def_kill_enum) == use_def_kill_enum; |
|
1885 } |
|
1886 |
|
1887 void Effect::dump() { |
|
1888 output(stderr); |
|
1889 } |
|
1890 |
|
1891 void Effect::output(FILE *fp) { // Write info to output files |
|
1892 fprintf(fp,"Effect: %s\n", (_name?_name:"")); |
|
1893 } |
|
1894 |
|
1895 //------------------------------ExpandRule------------------------------------- |
|
1896 ExpandRule::ExpandRule() : _expand_instrs(), |
|
1897 _newopconst(cmpstr, hashstr, Form::arena) { |
|
1898 _ftype = Form::EXP; |
|
1899 } |
|
1900 |
|
1901 ExpandRule::~ExpandRule() { // Destructor |
|
1902 } |
|
1903 |
|
1904 void ExpandRule::add_instruction(NameAndList *instruction_name_and_operand_list) { |
|
1905 _expand_instrs.addName((char*)instruction_name_and_operand_list); |
|
1906 } |
|
1907 |
|
1908 void ExpandRule::reset_instructions() { |
|
1909 _expand_instrs.reset(); |
|
1910 } |
|
1911 |
|
1912 NameAndList* ExpandRule::iter_instructions() { |
|
1913 return (NameAndList*)_expand_instrs.iter(); |
|
1914 } |
|
1915 |
|
1916 |
|
1917 void ExpandRule::dump() { |
|
1918 output(stderr); |
|
1919 } |
|
1920 |
|
1921 void ExpandRule::output(FILE *fp) { // Write info to output files |
|
1922 NameAndList *expand_instr = NULL; |
|
1923 const char *opid = NULL; |
|
1924 |
|
1925 fprintf(fp,"\nExpand Rule:\n"); |
|
1926 |
|
1927 // Iterate over the instructions 'node' expands into |
|
1928 for(reset_instructions(); (expand_instr = iter_instructions()) != NULL; ) { |
|
1929 fprintf(fp,"%s(", expand_instr->name()); |
|
1930 |
|
1931 // iterate over the operand list |
|
1932 for( expand_instr->reset(); (opid = expand_instr->iter()) != NULL; ) { |
|
1933 fprintf(fp,"%s ", opid); |
|
1934 } |
|
1935 fprintf(fp,");\n"); |
|
1936 } |
|
1937 } |
|
1938 |
|
1939 //------------------------------RewriteRule------------------------------------ |
|
1940 RewriteRule::RewriteRule(char* params, char* block) |
|
1941 : _tempParams(params), _tempBlock(block) { }; // Constructor |
|
1942 RewriteRule::~RewriteRule() { // Destructor |
|
1943 } |
|
1944 |
|
1945 void RewriteRule::dump() { |
|
1946 output(stderr); |
|
1947 } |
|
1948 |
|
1949 void RewriteRule::output(FILE *fp) { // Write info to output files |
|
1950 fprintf(fp,"\nRewrite Rule:\n%s\n%s\n", |
|
1951 (_tempParams?_tempParams:""), |
|
1952 (_tempBlock?_tempBlock:"")); |
|
1953 } |
|
1954 |
|
1955 |
|
1956 //==============================MachNodes====================================== |
|
1957 //------------------------------MachNodeForm----------------------------------- |
|
1958 MachNodeForm::MachNodeForm(char *id) |
|
1959 : _ident(id) { |
|
1960 } |
|
1961 |
|
1962 MachNodeForm::~MachNodeForm() { |
|
1963 } |
|
1964 |
|
1965 MachNodeForm *MachNodeForm::is_machnode() const { |
|
1966 return (MachNodeForm*)this; |
|
1967 } |
|
1968 |
|
1969 //==============================Operand Classes================================ |
|
1970 //------------------------------OpClassForm------------------------------------ |
|
1971 OpClassForm::OpClassForm(const char* id) : _ident(id) { |
|
1972 _ftype = Form::OPCLASS; |
|
1973 } |
|
1974 |
|
1975 OpClassForm::~OpClassForm() { |
|
1976 } |
|
1977 |
|
1978 bool OpClassForm::ideal_only() const { return 0; } |
|
1979 |
|
1980 OpClassForm *OpClassForm::is_opclass() const { |
|
1981 return (OpClassForm*)this; |
|
1982 } |
|
1983 |
|
1984 Form::InterfaceType OpClassForm::interface_type(FormDict &globals) const { |
|
1985 if( _oplst.count() == 0 ) return Form::no_interface; |
|
1986 |
|
1987 // Check that my operands have the same interface type |
|
1988 Form::InterfaceType interface; |
|
1989 bool first = true; |
|
1990 NameList &op_list = (NameList &)_oplst; |
|
1991 op_list.reset(); |
|
1992 const char *op_name; |
|
1993 while( (op_name = op_list.iter()) != NULL ) { |
|
1994 const Form *form = globals[op_name]; |
|
1995 OperandForm *operand = form->is_operand(); |
|
1996 assert( operand, "Entry in operand class that is not an operand"); |
|
1997 if( first ) { |
|
1998 first = false; |
|
1999 interface = operand->interface_type(globals); |
|
2000 } else { |
|
2001 interface = (interface == operand->interface_type(globals) ? interface : Form::no_interface); |
|
2002 } |
|
2003 } |
|
2004 return interface; |
|
2005 } |
|
2006 |
|
2007 bool OpClassForm::stack_slots_only(FormDict &globals) const { |
|
2008 if( _oplst.count() == 0 ) return false; // how? |
|
2009 |
|
2010 NameList &op_list = (NameList &)_oplst; |
|
2011 op_list.reset(); |
|
2012 const char *op_name; |
|
2013 while( (op_name = op_list.iter()) != NULL ) { |
|
2014 const Form *form = globals[op_name]; |
|
2015 OperandForm *operand = form->is_operand(); |
|
2016 assert( operand, "Entry in operand class that is not an operand"); |
|
2017 if( !operand->stack_slots_only(globals) ) return false; |
|
2018 } |
|
2019 return true; |
|
2020 } |
|
2021 |
|
2022 |
|
2023 void OpClassForm::dump() { |
|
2024 output(stderr); |
|
2025 } |
|
2026 |
|
2027 void OpClassForm::output(FILE *fp) { |
|
2028 const char *name; |
|
2029 fprintf(fp,"\nOperand Class: %s\n", (_ident?_ident:"")); |
|
2030 fprintf(fp,"\nCount = %d\n", _oplst.count()); |
|
2031 for(_oplst.reset(); (name = _oplst.iter()) != NULL;) { |
|
2032 fprintf(fp,"%s, ",name); |
|
2033 } |
|
2034 fprintf(fp,"\n"); |
|
2035 } |
|
2036 |
|
2037 |
|
2038 //==============================Operands======================================= |
|
2039 //------------------------------OperandForm------------------------------------ |
|
2040 OperandForm::OperandForm(const char* id) |
|
2041 : OpClassForm(id), _ideal_only(false), |
|
2042 _localNames(cmpstr, hashstr, Form::arena) { |
|
2043 _ftype = Form::OPER; |
|
2044 |
|
2045 _matrule = NULL; |
|
2046 _interface = NULL; |
|
2047 _attribs = NULL; |
|
2048 _predicate = NULL; |
|
2049 _constraint= NULL; |
|
2050 _construct = NULL; |
|
2051 _format = NULL; |
|
2052 } |
|
2053 OperandForm::OperandForm(const char* id, bool ideal_only) |
|
2054 : OpClassForm(id), _ideal_only(ideal_only), |
|
2055 _localNames(cmpstr, hashstr, Form::arena) { |
|
2056 _ftype = Form::OPER; |
|
2057 |
|
2058 _matrule = NULL; |
|
2059 _interface = NULL; |
|
2060 _attribs = NULL; |
|
2061 _predicate = NULL; |
|
2062 _constraint= NULL; |
|
2063 _construct = NULL; |
|
2064 _format = NULL; |
|
2065 } |
|
2066 OperandForm::~OperandForm() { |
|
2067 } |
|
2068 |
|
2069 |
|
2070 OperandForm *OperandForm::is_operand() const { |
|
2071 return (OperandForm*)this; |
|
2072 } |
|
2073 |
|
2074 bool OperandForm::ideal_only() const { |
|
2075 return _ideal_only; |
|
2076 } |
|
2077 |
|
2078 Form::InterfaceType OperandForm::interface_type(FormDict &globals) const { |
|
2079 if( _interface == NULL ) return Form::no_interface; |
|
2080 |
|
2081 return _interface->interface_type(globals); |
|
2082 } |
|
2083 |
|
2084 |
|
2085 bool OperandForm::stack_slots_only(FormDict &globals) const { |
|
2086 if( _constraint == NULL ) return false; |
|
2087 return _constraint->stack_slots_only(); |
|
2088 } |
|
2089 |
|
2090 |
|
2091 // Access op_cost attribute or return NULL. |
|
2092 const char* OperandForm::cost() { |
|
2093 for (Attribute* cur = _attribs; cur != NULL; cur = (Attribute*)cur->_next) { |
|
2094 if( strcmp(cur->_ident,AttributeForm::_op_cost) == 0 ) { |
|
2095 return cur->_val; |
|
2096 } |
|
2097 } |
|
2098 return NULL; |
|
2099 } |
|
2100 |
|
2101 // Return the number of leaves below this complex operand |
|
2102 uint OperandForm::num_leaves() const { |
|
2103 if ( ! _matrule) return 0; |
|
2104 |
|
2105 int num_leaves = _matrule->_numleaves; |
|
2106 return num_leaves; |
|
2107 } |
|
2108 |
|
2109 // Return the number of constants contained within this complex operand |
|
2110 uint OperandForm::num_consts(FormDict &globals) const { |
|
2111 if ( ! _matrule) return 0; |
|
2112 |
|
2113 // This is a recursive invocation on all operands in the matchrule |
|
2114 return _matrule->num_consts(globals); |
|
2115 } |
|
2116 |
|
2117 // Return the number of constants in match rule with specified type |
|
2118 uint OperandForm::num_consts(FormDict &globals, Form::DataType type) const { |
|
2119 if ( ! _matrule) return 0; |
|
2120 |
|
2121 // This is a recursive invocation on all operands in the matchrule |
|
2122 return _matrule->num_consts(globals, type); |
|
2123 } |
|
2124 |
|
2125 // Return the number of pointer constants contained within this complex operand |
|
2126 uint OperandForm::num_const_ptrs(FormDict &globals) const { |
|
2127 if ( ! _matrule) return 0; |
|
2128 |
|
2129 // This is a recursive invocation on all operands in the matchrule |
|
2130 return _matrule->num_const_ptrs(globals); |
|
2131 } |
|
2132 |
|
2133 uint OperandForm::num_edges(FormDict &globals) const { |
|
2134 uint edges = 0; |
|
2135 uint leaves = num_leaves(); |
|
2136 uint consts = num_consts(globals); |
|
2137 |
|
2138 // If we are matching a constant directly, there are no leaves. |
|
2139 edges = ( leaves > consts ) ? leaves - consts : 0; |
|
2140 |
|
2141 // !!!!! |
|
2142 // Special case operands that do not have a corresponding ideal node. |
|
2143 if( (edges == 0) && (consts == 0) ) { |
|
2144 if( constrained_reg_class() != NULL ) { |
|
2145 edges = 1; |
|
2146 } else { |
|
2147 if( _matrule |
|
2148 && (_matrule->_lChild == NULL) && (_matrule->_rChild == NULL) ) { |
|
2149 const Form *form = globals[_matrule->_opType]; |
|
2150 OperandForm *oper = form ? form->is_operand() : NULL; |
|
2151 if( oper ) { |
|
2152 return oper->num_edges(globals); |
|
2153 } |
|
2154 } |
|
2155 } |
|
2156 } |
|
2157 |
|
2158 return edges; |
|
2159 } |
|
2160 |
|
2161 |
|
2162 // Check if this operand is usable for cisc-spilling |
|
2163 bool OperandForm::is_cisc_reg(FormDict &globals) const { |
|
2164 const char *ideal = ideal_type(globals); |
|
2165 bool is_cisc_reg = (ideal && (ideal_to_Reg_type(ideal) != none)); |
|
2166 return is_cisc_reg; |
|
2167 } |
|
2168 |
|
2169 bool OpClassForm::is_cisc_mem(FormDict &globals) const { |
|
2170 Form::InterfaceType my_interface = interface_type(globals); |
|
2171 return (my_interface == memory_interface); |
|
2172 } |
|
2173 |
|
2174 |
|
2175 // node matches ideal 'Bool' |
|
2176 bool OperandForm::is_ideal_bool() const { |
|
2177 if( _matrule == NULL ) return false; |
|
2178 |
|
2179 return _matrule->is_ideal_bool(); |
|
2180 } |
|
2181 |
|
2182 // Require user's name for an sRegX to be stackSlotX |
|
2183 Form::DataType OperandForm::is_user_name_for_sReg() const { |
|
2184 DataType data_type = none; |
|
2185 if( _ident != NULL ) { |
|
2186 if( strcmp(_ident,"stackSlotI") == 0 ) data_type = Form::idealI; |
|
2187 else if( strcmp(_ident,"stackSlotP") == 0 ) data_type = Form::idealP; |
|
2188 else if( strcmp(_ident,"stackSlotD") == 0 ) data_type = Form::idealD; |
|
2189 else if( strcmp(_ident,"stackSlotF") == 0 ) data_type = Form::idealF; |
|
2190 else if( strcmp(_ident,"stackSlotL") == 0 ) data_type = Form::idealL; |
|
2191 } |
|
2192 assert((data_type == none) || (_matrule == NULL), "No match-rule for stackSlotX"); |
|
2193 |
|
2194 return data_type; |
|
2195 } |
|
2196 |
|
2197 |
|
2198 // Return ideal type, if there is a single ideal type for this operand |
|
2199 const char *OperandForm::ideal_type(FormDict &globals, RegisterForm *registers) const { |
|
2200 const char *type = NULL; |
|
2201 if (ideal_only()) type = _ident; |
|
2202 else if( _matrule == NULL ) { |
|
2203 // Check for condition code register |
|
2204 const char *rc_name = constrained_reg_class(); |
|
2205 // !!!!! |
|
2206 if (rc_name == NULL) return NULL; |
|
2207 // !!!!! !!!!! |
|
2208 // Check constraints on result's register class |
|
2209 if( registers ) { |
|
2210 RegClass *reg_class = registers->getRegClass(rc_name); |
|
2211 assert( reg_class != NULL, "Register class is not defined"); |
|
2212 |
|
2213 // Check for ideal type of entries in register class, all are the same type |
|
2214 reg_class->reset(); |
|
2215 RegDef *reg_def = reg_class->RegDef_iter(); |
|
2216 assert( reg_def != NULL, "No entries in register class"); |
|
2217 assert( reg_def->_idealtype != NULL, "Did not define ideal type for register"); |
|
2218 // Return substring that names the register's ideal type |
|
2219 type = reg_def->_idealtype + 3; |
|
2220 assert( *(reg_def->_idealtype + 0) == 'O', "Expect Op_ prefix"); |
|
2221 assert( *(reg_def->_idealtype + 1) == 'p', "Expect Op_ prefix"); |
|
2222 assert( *(reg_def->_idealtype + 2) == '_', "Expect Op_ prefix"); |
|
2223 } |
|
2224 } |
|
2225 else if( _matrule->_lChild == NULL && _matrule->_rChild == NULL ) { |
|
2226 // This operand matches a single type, at the top level. |
|
2227 // Check for ideal type |
|
2228 type = _matrule->_opType; |
|
2229 if( strcmp(type,"Bool") == 0 ) |
|
2230 return "Bool"; |
|
2231 // transitive lookup |
|
2232 const Form *frm = globals[type]; |
|
2233 OperandForm *op = frm->is_operand(); |
|
2234 type = op->ideal_type(globals, registers); |
|
2235 } |
|
2236 return type; |
|
2237 } |
|
2238 |
|
2239 |
|
2240 // If there is a single ideal type for this interface field, return it. |
|
2241 const char *OperandForm::interface_ideal_type(FormDict &globals, |
|
2242 const char *field) const { |
|
2243 const char *ideal_type = NULL; |
|
2244 const char *value = NULL; |
|
2245 |
|
2246 // Check if "field" is valid for this operand's interface |
|
2247 if ( ! is_interface_field(field, value) ) return ideal_type; |
|
2248 |
|
2249 // !!!!! !!!!! !!!!! |
|
2250 // If a valid field has a constant value, identify "ConI" or "ConP" or ... |
|
2251 |
|
2252 // Else, lookup type of field's replacement variable |
|
2253 |
|
2254 return ideal_type; |
|
2255 } |
|
2256 |
|
2257 |
|
2258 RegClass* OperandForm::get_RegClass() const { |
|
2259 if (_interface && !_interface->is_RegInterface()) return NULL; |
|
2260 return globalAD->get_registers()->getRegClass(constrained_reg_class()); |
|
2261 } |
|
2262 |
|
2263 |
|
2264 bool OperandForm::is_bound_register() const { |
|
2265 RegClass* reg_class = get_RegClass(); |
|
2266 if (reg_class == NULL) { |
|
2267 return false; |
|
2268 } |
|
2269 |
|
2270 const char* name = ideal_type(globalAD->globalNames()); |
|
2271 if (name == NULL) { |
|
2272 return false; |
|
2273 } |
|
2274 |
|
2275 uint size = 0; |
|
2276 if (strcmp(name, "RegFlags") == 0) size = 1; |
|
2277 if (strcmp(name, "RegI") == 0) size = 1; |
|
2278 if (strcmp(name, "RegF") == 0) size = 1; |
|
2279 if (strcmp(name, "RegD") == 0) size = 2; |
|
2280 if (strcmp(name, "RegL") == 0) size = 2; |
|
2281 if (strcmp(name, "RegN") == 0) size = 1; |
|
2282 if (strcmp(name, "RegP") == 0) size = globalAD->get_preproc_def("_LP64") ? 2 : 1; |
|
2283 if (size == 0) { |
|
2284 return false; |
|
2285 } |
|
2286 return size == reg_class->size(); |
|
2287 } |
|
2288 |
|
2289 |
|
2290 // Check if this is a valid field for this operand, |
|
2291 // Return 'true' if valid, and set the value to the string the user provided. |
|
2292 bool OperandForm::is_interface_field(const char *field, |
|
2293 const char * &value) const { |
|
2294 return false; |
|
2295 } |
|
2296 |
|
2297 |
|
2298 // Return register class name if a constraint specifies the register class. |
|
2299 const char *OperandForm::constrained_reg_class() const { |
|
2300 const char *reg_class = NULL; |
|
2301 if ( _constraint ) { |
|
2302 // !!!!! |
|
2303 Constraint *constraint = _constraint; |
|
2304 if ( strcmp(_constraint->_func,"ALLOC_IN_RC") == 0 ) { |
|
2305 reg_class = _constraint->_arg; |
|
2306 } |
|
2307 } |
|
2308 |
|
2309 return reg_class; |
|
2310 } |
|
2311 |
|
2312 |
|
2313 // Return the register class associated with 'leaf'. |
|
2314 const char *OperandForm::in_reg_class(uint leaf, FormDict &globals) { |
|
2315 const char *reg_class = NULL; // "RegMask::Empty"; |
|
2316 |
|
2317 if((_matrule == NULL) || (_matrule->is_chain_rule(globals))) { |
|
2318 reg_class = constrained_reg_class(); |
|
2319 return reg_class; |
|
2320 } |
|
2321 const char *result = NULL; |
|
2322 const char *name = NULL; |
|
2323 const char *type = NULL; |
|
2324 // iterate through all base operands |
|
2325 // until we reach the register that corresponds to "leaf" |
|
2326 // This function is not looking for an ideal type. It needs the first |
|
2327 // level user type associated with the leaf. |
|
2328 for(uint idx = 0;_matrule->base_operand(idx,globals,result,name,type);++idx) { |
|
2329 const Form *form = (_localNames[name] ? _localNames[name] : globals[result]); |
|
2330 OperandForm *oper = form ? form->is_operand() : NULL; |
|
2331 if( oper ) { |
|
2332 reg_class = oper->constrained_reg_class(); |
|
2333 if( reg_class ) { |
|
2334 reg_class = reg_class; |
|
2335 } else { |
|
2336 // ShouldNotReachHere(); |
|
2337 } |
|
2338 } else { |
|
2339 // ShouldNotReachHere(); |
|
2340 } |
|
2341 |
|
2342 // Increment our target leaf position if current leaf is not a candidate. |
|
2343 if( reg_class == NULL) ++leaf; |
|
2344 // Exit the loop with the value of reg_class when at the correct index |
|
2345 if( idx == leaf ) break; |
|
2346 // May iterate through all base operands if reg_class for 'leaf' is NULL |
|
2347 } |
|
2348 return reg_class; |
|
2349 } |
|
2350 |
|
2351 |
|
2352 // Recursive call to construct list of top-level operands. |
|
2353 // Implementation does not modify state of internal structures |
|
2354 void OperandForm::build_components() { |
|
2355 if (_matrule) _matrule->append_components(_localNames, _components); |
|
2356 |
|
2357 // Add parameters that "do not appear in match rule". |
|
2358 const char *name; |
|
2359 for (_parameters.reset(); (name = _parameters.iter()) != NULL;) { |
|
2360 OperandForm *opForm = (OperandForm*)_localNames[name]; |
|
2361 |
|
2362 if ( _components.operand_position(name) == -1 ) { |
|
2363 _components.insert(name, opForm->_ident, Component::INVALID, false); |
|
2364 } |
|
2365 } |
|
2366 |
|
2367 return; |
|
2368 } |
|
2369 |
|
2370 int OperandForm::operand_position(const char *name, int usedef) { |
|
2371 return _components.operand_position(name, usedef, this); |
|
2372 } |
|
2373 |
|
2374 |
|
2375 // Return zero-based position in component list, only counting constants; |
|
2376 // Return -1 if not in list. |
|
2377 int OperandForm::constant_position(FormDict &globals, const Component *last) { |
|
2378 // Iterate through components and count constants preceding 'constant' |
|
2379 int position = 0; |
|
2380 Component *comp; |
|
2381 _components.reset(); |
|
2382 while( (comp = _components.iter()) != NULL && (comp != last) ) { |
|
2383 // Special case for operands that take a single user-defined operand |
|
2384 // Skip the initial definition in the component list. |
|
2385 if( strcmp(comp->_name,this->_ident) == 0 ) continue; |
|
2386 |
|
2387 const char *type = comp->_type; |
|
2388 // Lookup operand form for replacement variable's type |
|
2389 const Form *form = globals[type]; |
|
2390 assert( form != NULL, "Component's type not found"); |
|
2391 OperandForm *oper = form ? form->is_operand() : NULL; |
|
2392 if( oper ) { |
|
2393 if( oper->_matrule->is_base_constant(globals) != Form::none ) { |
|
2394 ++position; |
|
2395 } |
|
2396 } |
|
2397 } |
|
2398 |
|
2399 // Check for being passed a component that was not in the list |
|
2400 if( comp != last ) position = -1; |
|
2401 |
|
2402 return position; |
|
2403 } |
|
2404 // Provide position of constant by "name" |
|
2405 int OperandForm::constant_position(FormDict &globals, const char *name) { |
|
2406 const Component *comp = _components.search(name); |
|
2407 int idx = constant_position( globals, comp ); |
|
2408 |
|
2409 return idx; |
|
2410 } |
|
2411 |
|
2412 |
|
2413 // Return zero-based position in component list, only counting constants; |
|
2414 // Return -1 if not in list. |
|
2415 int OperandForm::register_position(FormDict &globals, const char *reg_name) { |
|
2416 // Iterate through components and count registers preceding 'last' |
|
2417 uint position = 0; |
|
2418 Component *comp; |
|
2419 _components.reset(); |
|
2420 while( (comp = _components.iter()) != NULL |
|
2421 && (strcmp(comp->_name,reg_name) != 0) ) { |
|
2422 // Special case for operands that take a single user-defined operand |
|
2423 // Skip the initial definition in the component list. |
|
2424 if( strcmp(comp->_name,this->_ident) == 0 ) continue; |
|
2425 |
|
2426 const char *type = comp->_type; |
|
2427 // Lookup operand form for component's type |
|
2428 const Form *form = globals[type]; |
|
2429 assert( form != NULL, "Component's type not found"); |
|
2430 OperandForm *oper = form ? form->is_operand() : NULL; |
|
2431 if( oper ) { |
|
2432 if( oper->_matrule->is_base_register(globals) ) { |
|
2433 ++position; |
|
2434 } |
|
2435 } |
|
2436 } |
|
2437 |
|
2438 return position; |
|
2439 } |
|
2440 |
|
2441 |
|
2442 const char *OperandForm::reduce_result() const { |
|
2443 return _ident; |
|
2444 } |
|
2445 // Return the name of the operand on the right hand side of the binary match |
|
2446 // Return NULL if there is no right hand side |
|
2447 const char *OperandForm::reduce_right(FormDict &globals) const { |
|
2448 return ( _matrule ? _matrule->reduce_right(globals) : NULL ); |
|
2449 } |
|
2450 |
|
2451 // Similar for left |
|
2452 const char *OperandForm::reduce_left(FormDict &globals) const { |
|
2453 return ( _matrule ? _matrule->reduce_left(globals) : NULL ); |
|
2454 } |
|
2455 |
|
2456 |
|
2457 // --------------------------- FILE *output_routines |
|
2458 // |
|
2459 // Output code for disp_is_oop, if true. |
|
2460 void OperandForm::disp_is_oop(FILE *fp, FormDict &globals) { |
|
2461 // Check it is a memory interface with a non-user-constant disp field |
|
2462 if ( this->_interface == NULL ) return; |
|
2463 MemInterface *mem_interface = this->_interface->is_MemInterface(); |
|
2464 if ( mem_interface == NULL ) return; |
|
2465 const char *disp = mem_interface->_disp; |
|
2466 if ( *disp != '$' ) return; |
|
2467 |
|
2468 // Lookup replacement variable in operand's component list |
|
2469 const char *rep_var = disp + 1; |
|
2470 const Component *comp = this->_components.search(rep_var); |
|
2471 assert( comp != NULL, "Replacement variable not found in components"); |
|
2472 // Lookup operand form for replacement variable's type |
|
2473 const char *type = comp->_type; |
|
2474 Form *form = (Form*)globals[type]; |
|
2475 assert( form != NULL, "Replacement variable's type not found"); |
|
2476 OperandForm *op = form->is_operand(); |
|
2477 assert( op, "Memory Interface 'disp' can only emit an operand form"); |
|
2478 // Check if this is a ConP, which may require relocation |
|
2479 if ( op->is_base_constant(globals) == Form::idealP ) { |
|
2480 // Find the constant's index: _c0, _c1, _c2, ... , _cN |
|
2481 uint idx = op->constant_position( globals, rep_var); |
|
2482 fprintf(fp," virtual relocInfo::relocType disp_reloc() const {"); |
|
2483 fprintf(fp, " return _c%d->reloc();", idx); |
|
2484 fprintf(fp, " }\n"); |
|
2485 } |
|
2486 } |
|
2487 |
|
2488 // Generate code for internal and external format methods |
|
2489 // |
|
2490 // internal access to reg# node->_idx |
|
2491 // access to subsumed constant _c0, _c1, |
|
2492 void OperandForm::int_format(FILE *fp, FormDict &globals, uint index) { |
|
2493 Form::DataType dtype; |
|
2494 if (_matrule && (_matrule->is_base_register(globals) || |
|
2495 strcmp(ideal_type(globalAD->globalNames()), "RegFlags") == 0)) { |
|
2496 // !!!!! !!!!! |
|
2497 fprintf(fp," { char reg_str[128];\n"); |
|
2498 fprintf(fp," ra->dump_register(node,reg_str);\n"); |
|
2499 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); |
|
2500 fprintf(fp," }\n"); |
|
2501 } else if (_matrule && (dtype = _matrule->is_base_constant(globals)) != Form::none) { |
|
2502 format_constant( fp, index, dtype ); |
|
2503 } else if (ideal_to_sReg_type(_ident) != Form::none) { |
|
2504 // Special format for Stack Slot Register |
|
2505 fprintf(fp," { char reg_str[128];\n"); |
|
2506 fprintf(fp," ra->dump_register(node,reg_str);\n"); |
|
2507 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); |
|
2508 fprintf(fp," }\n"); |
|
2509 } else { |
|
2510 fprintf(fp," st->print(\"No format defined for %s\n\");\n", _ident); |
|
2511 fflush(fp); |
|
2512 fprintf(stderr,"No format defined for %s\n", _ident); |
|
2513 dump(); |
|
2514 assert( false,"Internal error:\n output_internal_operand() attempting to output other than a Register or Constant"); |
|
2515 } |
|
2516 } |
|
2517 |
|
2518 // Similar to "int_format" but for cases where data is external to operand |
|
2519 // external access to reg# node->in(idx)->_idx, |
|
2520 void OperandForm::ext_format(FILE *fp, FormDict &globals, uint index) { |
|
2521 Form::DataType dtype; |
|
2522 if (_matrule && (_matrule->is_base_register(globals) || |
|
2523 strcmp(ideal_type(globalAD->globalNames()), "RegFlags") == 0)) { |
|
2524 fprintf(fp," { char reg_str[128];\n"); |
|
2525 fprintf(fp," ra->dump_register(node->in(idx"); |
|
2526 if ( index != 0 ) fprintf(fp, "+%d",index); |
|
2527 fprintf(fp, "),reg_str);\n"); |
|
2528 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); |
|
2529 fprintf(fp," }\n"); |
|
2530 } else if (_matrule && (dtype = _matrule->is_base_constant(globals)) != Form::none) { |
|
2531 format_constant( fp, index, dtype ); |
|
2532 } else if (ideal_to_sReg_type(_ident) != Form::none) { |
|
2533 // Special format for Stack Slot Register |
|
2534 fprintf(fp," { char reg_str[128];\n"); |
|
2535 fprintf(fp," ra->dump_register(node->in(idx"); |
|
2536 if ( index != 0 ) fprintf(fp, "+%d",index); |
|
2537 fprintf(fp, "),reg_str);\n"); |
|
2538 fprintf(fp," st->print(\"%cs\",reg_str);\n",'%'); |
|
2539 fprintf(fp," }\n"); |
|
2540 } else { |
|
2541 fprintf(fp," st->print(\"No format defined for %s\n\");\n", _ident); |
|
2542 assert( false,"Internal error:\n output_external_operand() attempting to output other than a Register or Constant"); |
|
2543 } |
|
2544 } |
|
2545 |
|
2546 void OperandForm::format_constant(FILE *fp, uint const_index, uint const_type) { |
|
2547 switch(const_type) { |
|
2548 case Form::idealI: fprintf(fp," st->print(\"#%%d\", _c%d);\n", const_index); break; |
|
2549 case Form::idealP: fprintf(fp," if (_c%d) _c%d->dump_on(st);\n", const_index, const_index); break; |
|
2550 case Form::idealNKlass: |
|
2551 case Form::idealN: fprintf(fp," if (_c%d) _c%d->dump_on(st);\n", const_index, const_index); break; |
|
2552 case Form::idealL: fprintf(fp," st->print(\"#\" INT64_FORMAT, (int64_t)_c%d);\n", const_index); break; |
|
2553 case Form::idealF: fprintf(fp," st->print(\"#%%f\", _c%d);\n", const_index); break; |
|
2554 case Form::idealD: fprintf(fp," st->print(\"#%%f\", _c%d);\n", const_index); break; |
|
2555 default: |
|
2556 assert( false, "ShouldNotReachHere()"); |
|
2557 } |
|
2558 } |
|
2559 |
|
2560 // Return the operand form corresponding to the given index, else NULL. |
|
2561 OperandForm *OperandForm::constant_operand(FormDict &globals, |
|
2562 uint index) { |
|
2563 // !!!!! |
|
2564 // Check behavior on complex operands |
|
2565 uint n_consts = num_consts(globals); |
|
2566 if( n_consts > 0 ) { |
|
2567 uint i = 0; |
|
2568 const char *type; |
|
2569 Component *comp; |
|
2570 _components.reset(); |
|
2571 if ((comp = _components.iter()) == NULL) { |
|
2572 assert(n_consts == 1, "Bad component list detected.\n"); |
|
2573 // Current operand is THE operand |
|
2574 if ( index == 0 ) { |
|
2575 return this; |
|
2576 } |
|
2577 } // end if NULL |
|
2578 else { |
|
2579 // Skip the first component, it can not be a DEF of a constant |
|
2580 do { |
|
2581 type = comp->base_type(globals); |
|
2582 // Check that "type" is a 'ConI', 'ConP', ... |
|
2583 if ( ideal_to_const_type(type) != Form::none ) { |
|
2584 // When at correct component, get corresponding Operand |
|
2585 if ( index == 0 ) { |
|
2586 return globals[comp->_type]->is_operand(); |
|
2587 } |
|
2588 // Decrement number of constants to go |
|
2589 --index; |
|
2590 } |
|
2591 } while((comp = _components.iter()) != NULL); |
|
2592 } |
|
2593 } |
|
2594 |
|
2595 // Did not find a constant for this index. |
|
2596 return NULL; |
|
2597 } |
|
2598 |
|
2599 // If this operand has a single ideal type, return its type |
|
2600 Form::DataType OperandForm::simple_type(FormDict &globals) const { |
|
2601 const char *type_name = ideal_type(globals); |
|
2602 Form::DataType type = type_name ? ideal_to_const_type( type_name ) |
|
2603 : Form::none; |
|
2604 return type; |
|
2605 } |
|
2606 |
|
2607 Form::DataType OperandForm::is_base_constant(FormDict &globals) const { |
|
2608 if ( _matrule == NULL ) return Form::none; |
|
2609 |
|
2610 return _matrule->is_base_constant(globals); |
|
2611 } |
|
2612 |
|
2613 // "true" if this operand is a simple type that is swallowed |
|
2614 bool OperandForm::swallowed(FormDict &globals) const { |
|
2615 Form::DataType type = simple_type(globals); |
|
2616 if( type != Form::none ) { |
|
2617 return true; |
|
2618 } |
|
2619 |
|
2620 return false; |
|
2621 } |
|
2622 |
|
2623 // Output code to access the value of the index'th constant |
|
2624 void OperandForm::access_constant(FILE *fp, FormDict &globals, |
|
2625 uint const_index) { |
|
2626 OperandForm *oper = constant_operand(globals, const_index); |
|
2627 assert( oper, "Index exceeds number of constants in operand"); |
|
2628 Form::DataType dtype = oper->is_base_constant(globals); |
|
2629 |
|
2630 switch(dtype) { |
|
2631 case idealI: fprintf(fp,"_c%d", const_index); break; |
|
2632 case idealP: fprintf(fp,"_c%d->get_con()",const_index); break; |
|
2633 case idealL: fprintf(fp,"_c%d", const_index); break; |
|
2634 case idealF: fprintf(fp,"_c%d", const_index); break; |
|
2635 case idealD: fprintf(fp,"_c%d", const_index); break; |
|
2636 default: |
|
2637 assert( false, "ShouldNotReachHere()"); |
|
2638 } |
|
2639 } |
|
2640 |
|
2641 |
|
2642 void OperandForm::dump() { |
|
2643 output(stderr); |
|
2644 } |
|
2645 |
|
2646 void OperandForm::output(FILE *fp) { |
|
2647 fprintf(fp,"\nOperand: %s\n", (_ident?_ident:"")); |
|
2648 if (_matrule) _matrule->dump(); |
|
2649 if (_interface) _interface->dump(); |
|
2650 if (_attribs) _attribs->dump(); |
|
2651 if (_predicate) _predicate->dump(); |
|
2652 if (_constraint) _constraint->dump(); |
|
2653 if (_construct) _construct->dump(); |
|
2654 if (_format) _format->dump(); |
|
2655 } |
|
2656 |
|
2657 //------------------------------Constraint------------------------------------- |
|
2658 Constraint::Constraint(const char *func, const char *arg) |
|
2659 : _func(func), _arg(arg) { |
|
2660 } |
|
2661 Constraint::~Constraint() { /* not owner of char* */ |
|
2662 } |
|
2663 |
|
2664 bool Constraint::stack_slots_only() const { |
|
2665 return strcmp(_func, "ALLOC_IN_RC") == 0 |
|
2666 && strcmp(_arg, "stack_slots") == 0; |
|
2667 } |
|
2668 |
|
2669 void Constraint::dump() { |
|
2670 output(stderr); |
|
2671 } |
|
2672 |
|
2673 void Constraint::output(FILE *fp) { // Write info to output files |
|
2674 assert((_func != NULL && _arg != NULL),"missing constraint function or arg"); |
|
2675 fprintf(fp,"Constraint: %s ( %s )\n", _func, _arg); |
|
2676 } |
|
2677 |
|
2678 //------------------------------Predicate-------------------------------------- |
|
2679 Predicate::Predicate(char *pr) |
|
2680 : _pred(pr) { |
|
2681 } |
|
2682 Predicate::~Predicate() { |
|
2683 } |
|
2684 |
|
2685 void Predicate::dump() { |
|
2686 output(stderr); |
|
2687 } |
|
2688 |
|
2689 void Predicate::output(FILE *fp) { |
|
2690 fprintf(fp,"Predicate"); // Write to output files |
|
2691 } |
|
2692 //------------------------------Interface-------------------------------------- |
|
2693 Interface::Interface(const char *name) : _name(name) { |
|
2694 } |
|
2695 Interface::~Interface() { |
|
2696 } |
|
2697 |
|
2698 Form::InterfaceType Interface::interface_type(FormDict &globals) const { |
|
2699 Interface *thsi = (Interface*)this; |
|
2700 if ( thsi->is_RegInterface() ) return Form::register_interface; |
|
2701 if ( thsi->is_MemInterface() ) return Form::memory_interface; |
|
2702 if ( thsi->is_ConstInterface() ) return Form::constant_interface; |
|
2703 if ( thsi->is_CondInterface() ) return Form::conditional_interface; |
|
2704 |
|
2705 return Form::no_interface; |
|
2706 } |
|
2707 |
|
2708 RegInterface *Interface::is_RegInterface() { |
|
2709 if ( strcmp(_name,"REG_INTER") != 0 ) |
|
2710 return NULL; |
|
2711 return (RegInterface*)this; |
|
2712 } |
|
2713 MemInterface *Interface::is_MemInterface() { |
|
2714 if ( strcmp(_name,"MEMORY_INTER") != 0 ) return NULL; |
|
2715 return (MemInterface*)this; |
|
2716 } |
|
2717 ConstInterface *Interface::is_ConstInterface() { |
|
2718 if ( strcmp(_name,"CONST_INTER") != 0 ) return NULL; |
|
2719 return (ConstInterface*)this; |
|
2720 } |
|
2721 CondInterface *Interface::is_CondInterface() { |
|
2722 if ( strcmp(_name,"COND_INTER") != 0 ) return NULL; |
|
2723 return (CondInterface*)this; |
|
2724 } |
|
2725 |
|
2726 |
|
2727 void Interface::dump() { |
|
2728 output(stderr); |
|
2729 } |
|
2730 |
|
2731 // Write info to output files |
|
2732 void Interface::output(FILE *fp) { |
|
2733 fprintf(fp,"Interface: %s\n", (_name ? _name : "") ); |
|
2734 } |
|
2735 |
|
2736 //------------------------------RegInterface----------------------------------- |
|
2737 RegInterface::RegInterface() : Interface("REG_INTER") { |
|
2738 } |
|
2739 RegInterface::~RegInterface() { |
|
2740 } |
|
2741 |
|
2742 void RegInterface::dump() { |
|
2743 output(stderr); |
|
2744 } |
|
2745 |
|
2746 // Write info to output files |
|
2747 void RegInterface::output(FILE *fp) { |
|
2748 Interface::output(fp); |
|
2749 } |
|
2750 |
|
2751 //------------------------------ConstInterface--------------------------------- |
|
2752 ConstInterface::ConstInterface() : Interface("CONST_INTER") { |
|
2753 } |
|
2754 ConstInterface::~ConstInterface() { |
|
2755 } |
|
2756 |
|
2757 void ConstInterface::dump() { |
|
2758 output(stderr); |
|
2759 } |
|
2760 |
|
2761 // Write info to output files |
|
2762 void ConstInterface::output(FILE *fp) { |
|
2763 Interface::output(fp); |
|
2764 } |
|
2765 |
|
2766 //------------------------------MemInterface----------------------------------- |
|
2767 MemInterface::MemInterface(char *base, char *index, char *scale, char *disp) |
|
2768 : Interface("MEMORY_INTER"), _base(base), _index(index), _scale(scale), _disp(disp) { |
|
2769 } |
|
2770 MemInterface::~MemInterface() { |
|
2771 // not owner of any character arrays |
|
2772 } |
|
2773 |
|
2774 void MemInterface::dump() { |
|
2775 output(stderr); |
|
2776 } |
|
2777 |
|
2778 // Write info to output files |
|
2779 void MemInterface::output(FILE *fp) { |
|
2780 Interface::output(fp); |
|
2781 if ( _base != NULL ) fprintf(fp," base == %s\n", _base); |
|
2782 if ( _index != NULL ) fprintf(fp," index == %s\n", _index); |
|
2783 if ( _scale != NULL ) fprintf(fp," scale == %s\n", _scale); |
|
2784 if ( _disp != NULL ) fprintf(fp," disp == %s\n", _disp); |
|
2785 // fprintf(fp,"\n"); |
|
2786 } |
|
2787 |
|
2788 //------------------------------CondInterface---------------------------------- |
|
2789 CondInterface::CondInterface(const char* equal, const char* equal_format, |
|
2790 const char* not_equal, const char* not_equal_format, |
|
2791 const char* less, const char* less_format, |
|
2792 const char* greater_equal, const char* greater_equal_format, |
|
2793 const char* less_equal, const char* less_equal_format, |
|
2794 const char* greater, const char* greater_format, |
|
2795 const char* overflow, const char* overflow_format, |
|
2796 const char* no_overflow, const char* no_overflow_format) |
|
2797 : Interface("COND_INTER"), |
|
2798 _equal(equal), _equal_format(equal_format), |
|
2799 _not_equal(not_equal), _not_equal_format(not_equal_format), |
|
2800 _less(less), _less_format(less_format), |
|
2801 _greater_equal(greater_equal), _greater_equal_format(greater_equal_format), |
|
2802 _less_equal(less_equal), _less_equal_format(less_equal_format), |
|
2803 _greater(greater), _greater_format(greater_format), |
|
2804 _overflow(overflow), _overflow_format(overflow_format), |
|
2805 _no_overflow(no_overflow), _no_overflow_format(no_overflow_format) { |
|
2806 } |
|
2807 CondInterface::~CondInterface() { |
|
2808 // not owner of any character arrays |
|
2809 } |
|
2810 |
|
2811 void CondInterface::dump() { |
|
2812 output(stderr); |
|
2813 } |
|
2814 |
|
2815 // Write info to output files |
|
2816 void CondInterface::output(FILE *fp) { |
|
2817 Interface::output(fp); |
|
2818 if ( _equal != NULL ) fprintf(fp," equal == %s\n", _equal); |
|
2819 if ( _not_equal != NULL ) fprintf(fp," not_equal == %s\n", _not_equal); |
|
2820 if ( _less != NULL ) fprintf(fp," less == %s\n", _less); |
|
2821 if ( _greater_equal != NULL ) fprintf(fp," greater_equal == %s\n", _greater_equal); |
|
2822 if ( _less_equal != NULL ) fprintf(fp," less_equal == %s\n", _less_equal); |
|
2823 if ( _greater != NULL ) fprintf(fp," greater == %s\n", _greater); |
|
2824 if ( _overflow != NULL ) fprintf(fp," overflow == %s\n", _overflow); |
|
2825 if ( _no_overflow != NULL ) fprintf(fp," no_overflow == %s\n", _no_overflow); |
|
2826 // fprintf(fp,"\n"); |
|
2827 } |
|
2828 |
|
2829 //------------------------------ConstructRule---------------------------------- |
|
2830 ConstructRule::ConstructRule(char *cnstr) |
|
2831 : _construct(cnstr) { |
|
2832 } |
|
2833 ConstructRule::~ConstructRule() { |
|
2834 } |
|
2835 |
|
2836 void ConstructRule::dump() { |
|
2837 output(stderr); |
|
2838 } |
|
2839 |
|
2840 void ConstructRule::output(FILE *fp) { |
|
2841 fprintf(fp,"\nConstruct Rule\n"); // Write to output files |
|
2842 } |
|
2843 |
|
2844 |
|
2845 //==============================Shared Forms=================================== |
|
2846 //------------------------------AttributeForm---------------------------------- |
|
2847 int AttributeForm::_insId = 0; // start counter at 0 |
|
2848 int AttributeForm::_opId = 0; // start counter at 0 |
|
2849 const char* AttributeForm::_ins_cost = "ins_cost"; // required name |
|
2850 const char* AttributeForm::_op_cost = "op_cost"; // required name |
|
2851 |
|
2852 AttributeForm::AttributeForm(char *attr, int type, char *attrdef) |
|
2853 : Form(Form::ATTR), _attrname(attr), _atype(type), _attrdef(attrdef) { |
|
2854 if (type==OP_ATTR) { |
|
2855 id = ++_opId; |
|
2856 } |
|
2857 else if (type==INS_ATTR) { |
|
2858 id = ++_insId; |
|
2859 } |
|
2860 else assert( false,""); |
|
2861 } |
|
2862 AttributeForm::~AttributeForm() { |
|
2863 } |
|
2864 |
|
2865 // Dynamic type check |
|
2866 AttributeForm *AttributeForm::is_attribute() const { |
|
2867 return (AttributeForm*)this; |
|
2868 } |
|
2869 |
|
2870 |
|
2871 // inlined // int AttributeForm::type() { return id;} |
|
2872 |
|
2873 void AttributeForm::dump() { |
|
2874 output(stderr); |
|
2875 } |
|
2876 |
|
2877 void AttributeForm::output(FILE *fp) { |
|
2878 if( _attrname && _attrdef ) { |
|
2879 fprintf(fp,"\n// AttributeForm \nstatic const int %s = %s;\n", |
|
2880 _attrname, _attrdef); |
|
2881 } |
|
2882 else { |
|
2883 fprintf(fp,"\n// AttributeForm missing name %s or definition %s\n", |
|
2884 (_attrname?_attrname:""), (_attrdef?_attrdef:"") ); |
|
2885 } |
|
2886 } |
|
2887 |
|
2888 //------------------------------Component-------------------------------------- |
|
2889 Component::Component(const char *name, const char *type, int usedef) |
|
2890 : _name(name), _type(type), _usedef(usedef) { |
|
2891 _ftype = Form::COMP; |
|
2892 } |
|
2893 Component::~Component() { |
|
2894 } |
|
2895 |
|
2896 // True if this component is equal to the parameter. |
|
2897 bool Component::is(int use_def_kill_enum) const { |
|
2898 return (_usedef == use_def_kill_enum ? true : false); |
|
2899 } |
|
2900 // True if this component is used/def'd/kill'd as the parameter suggests. |
|
2901 bool Component::isa(int use_def_kill_enum) const { |
|
2902 return (_usedef & use_def_kill_enum) == use_def_kill_enum; |
|
2903 } |
|
2904 |
|
2905 // Extend this component with additional use/def/kill behavior |
|
2906 int Component::promote_use_def_info(int new_use_def) { |
|
2907 _usedef |= new_use_def; |
|
2908 |
|
2909 return _usedef; |
|
2910 } |
|
2911 |
|
2912 // Check the base type of this component, if it has one |
|
2913 const char *Component::base_type(FormDict &globals) { |
|
2914 const Form *frm = globals[_type]; |
|
2915 if (frm == NULL) return NULL; |
|
2916 OperandForm *op = frm->is_operand(); |
|
2917 if (op == NULL) return NULL; |
|
2918 if (op->ideal_only()) return op->_ident; |
|
2919 return (char *)op->ideal_type(globals); |
|
2920 } |
|
2921 |
|
2922 void Component::dump() { |
|
2923 output(stderr); |
|
2924 } |
|
2925 |
|
2926 void Component::output(FILE *fp) { |
|
2927 fprintf(fp,"Component:"); // Write to output files |
|
2928 fprintf(fp, " name = %s", _name); |
|
2929 fprintf(fp, ", type = %s", _type); |
|
2930 assert(_usedef != 0, "unknown effect"); |
|
2931 fprintf(fp, ", use/def = %s\n", getUsedefName()); |
|
2932 } |
|
2933 |
|
2934 |
|
2935 //------------------------------ComponentList--------------------------------- |
|
2936 ComponentList::ComponentList() : NameList(), _matchcnt(0) { |
|
2937 } |
|
2938 ComponentList::~ComponentList() { |
|
2939 // // This list may not own its elements if copied via assignment |
|
2940 // Component *component; |
|
2941 // for (reset(); (component = iter()) != NULL;) { |
|
2942 // delete component; |
|
2943 // } |
|
2944 } |
|
2945 |
|
2946 void ComponentList::insert(Component *component, bool mflag) { |
|
2947 NameList::addName((char *)component); |
|
2948 if(mflag) _matchcnt++; |
|
2949 } |
|
2950 void ComponentList::insert(const char *name, const char *opType, int usedef, |
|
2951 bool mflag) { |
|
2952 Component * component = new Component(name, opType, usedef); |
|
2953 insert(component, mflag); |
|
2954 } |
|
2955 Component *ComponentList::current() { return (Component*)NameList::current(); } |
|
2956 Component *ComponentList::iter() { return (Component*)NameList::iter(); } |
|
2957 Component *ComponentList::match_iter() { |
|
2958 if(_iter < _matchcnt) return (Component*)NameList::iter(); |
|
2959 return NULL; |
|
2960 } |
|
2961 Component *ComponentList::post_match_iter() { |
|
2962 Component *comp = iter(); |
|
2963 // At end of list? |
|
2964 if ( comp == NULL ) { |
|
2965 return comp; |
|
2966 } |
|
2967 // In post-match components? |
|
2968 if (_iter > match_count()-1) { |
|
2969 return comp; |
|
2970 } |
|
2971 |
|
2972 return post_match_iter(); |
|
2973 } |
|
2974 |
|
2975 void ComponentList::reset() { NameList::reset(); } |
|
2976 int ComponentList::count() { return NameList::count(); } |
|
2977 |
|
2978 Component *ComponentList::operator[](int position) { |
|
2979 // Shortcut complete iteration if there are not enough entries |
|
2980 if (position >= count()) return NULL; |
|
2981 |
|
2982 int index = 0; |
|
2983 Component *component = NULL; |
|
2984 for (reset(); (component = iter()) != NULL;) { |
|
2985 if (index == position) { |
|
2986 return component; |
|
2987 } |
|
2988 ++index; |
|
2989 } |
|
2990 |
|
2991 return NULL; |
|
2992 } |
|
2993 |
|
2994 const Component *ComponentList::search(const char *name) { |
|
2995 PreserveIter pi(this); |
|
2996 reset(); |
|
2997 for( Component *comp = NULL; ((comp = iter()) != NULL); ) { |
|
2998 if( strcmp(comp->_name,name) == 0 ) return comp; |
|
2999 } |
|
3000 |
|
3001 return NULL; |
|
3002 } |
|
3003 |
|
3004 // Return number of USEs + number of DEFs |
|
3005 // When there are no components, or the first component is a USE, |
|
3006 // then we add '1' to hold a space for the 'result' operand. |
|
3007 int ComponentList::num_operands() { |
|
3008 PreserveIter pi(this); |
|
3009 uint count = 1; // result operand |
|
3010 uint position = 0; |
|
3011 |
|
3012 Component *component = NULL; |
|
3013 for( reset(); (component = iter()) != NULL; ++position ) { |
|
3014 if( component->isa(Component::USE) || |
|
3015 ( position == 0 && (! component->isa(Component::DEF))) ) { |
|
3016 ++count; |
|
3017 } |
|
3018 } |
|
3019 |
|
3020 return count; |
|
3021 } |
|
3022 |
|
3023 // Return zero-based position of operand 'name' in list; -1 if not in list. |
|
3024 // if parameter 'usedef' is ::USE, it will match USE, USE_DEF, ... |
|
3025 int ComponentList::operand_position(const char *name, int usedef, Form *fm) { |
|
3026 PreserveIter pi(this); |
|
3027 int position = 0; |
|
3028 int num_opnds = num_operands(); |
|
3029 Component *component; |
|
3030 Component* preceding_non_use = NULL; |
|
3031 Component* first_def = NULL; |
|
3032 for (reset(); (component = iter()) != NULL; ++position) { |
|
3033 // When the first component is not a DEF, |
|
3034 // leave space for the result operand! |
|
3035 if ( position==0 && (! component->isa(Component::DEF)) ) { |
|
3036 ++position; |
|
3037 ++num_opnds; |
|
3038 } |
|
3039 if (strcmp(name, component->_name)==0 && (component->isa(usedef))) { |
|
3040 // When the first entry in the component list is a DEF and a USE |
|
3041 // Treat them as being separate, a DEF first, then a USE |
|
3042 if( position==0 |
|
3043 && usedef==Component::USE && component->isa(Component::DEF) ) { |
|
3044 assert(position+1 < num_opnds, "advertised index in bounds"); |
|
3045 return position+1; |
|
3046 } else { |
|
3047 if( preceding_non_use && strcmp(component->_name, preceding_non_use->_name) ) { |
|
3048 fprintf(stderr, "the name '%s(%s)' should not precede the name '%s(%s)'", |
|
3049 preceding_non_use->_name, preceding_non_use->getUsedefName(), |
|
3050 name, component->getUsedefName()); |
|
3051 if (fm && fm->is_instruction()) fprintf(stderr, "in form '%s'", fm->is_instruction()->_ident); |
|
3052 if (fm && fm->is_operand()) fprintf(stderr, "in form '%s'", fm->is_operand()->_ident); |
|
3053 fprintf(stderr, "\n"); |
|
3054 } |
|
3055 if( position >= num_opnds ) { |
|
3056 fprintf(stderr, "the name '%s' is too late in its name list", name); |
|
3057 if (fm && fm->is_instruction()) fprintf(stderr, "in form '%s'", fm->is_instruction()->_ident); |
|
3058 if (fm && fm->is_operand()) fprintf(stderr, "in form '%s'", fm->is_operand()->_ident); |
|
3059 fprintf(stderr, "\n"); |
|
3060 } |
|
3061 assert(position < num_opnds, "advertised index in bounds"); |
|
3062 return position; |
|
3063 } |
|
3064 } |
|
3065 if( component->isa(Component::DEF) |
|
3066 && component->isa(Component::USE) ) { |
|
3067 ++position; |
|
3068 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF |
|
3069 } |
|
3070 if( component->isa(Component::DEF) && !first_def ) { |
|
3071 first_def = component; |
|
3072 } |
|
3073 if( !component->isa(Component::USE) && component != first_def ) { |
|
3074 preceding_non_use = component; |
|
3075 } else if( preceding_non_use && !strcmp(component->_name, preceding_non_use->_name) ) { |
|
3076 preceding_non_use = NULL; |
|
3077 } |
|
3078 } |
|
3079 return Not_in_list; |
|
3080 } |
|
3081 |
|
3082 // Find position for this name, regardless of use/def information |
|
3083 int ComponentList::operand_position(const char *name) { |
|
3084 PreserveIter pi(this); |
|
3085 int position = 0; |
|
3086 Component *component; |
|
3087 for (reset(); (component = iter()) != NULL; ++position) { |
|
3088 // When the first component is not a DEF, |
|
3089 // leave space for the result operand! |
|
3090 if ( position==0 && (! component->isa(Component::DEF)) ) { |
|
3091 ++position; |
|
3092 } |
|
3093 if (strcmp(name, component->_name)==0) { |
|
3094 return position; |
|
3095 } |
|
3096 if( component->isa(Component::DEF) |
|
3097 && component->isa(Component::USE) ) { |
|
3098 ++position; |
|
3099 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF |
|
3100 } |
|
3101 } |
|
3102 return Not_in_list; |
|
3103 } |
|
3104 |
|
3105 int ComponentList::operand_position_format(const char *name, Form *fm) { |
|
3106 PreserveIter pi(this); |
|
3107 int first_position = operand_position(name); |
|
3108 int use_position = operand_position(name, Component::USE, fm); |
|
3109 |
|
3110 return ((first_position < use_position) ? use_position : first_position); |
|
3111 } |
|
3112 |
|
3113 int ComponentList::label_position() { |
|
3114 PreserveIter pi(this); |
|
3115 int position = 0; |
|
3116 reset(); |
|
3117 for( Component *comp; (comp = iter()) != NULL; ++position) { |
|
3118 // When the first component is not a DEF, |
|
3119 // leave space for the result operand! |
|
3120 if ( position==0 && (! comp->isa(Component::DEF)) ) { |
|
3121 ++position; |
|
3122 } |
|
3123 if (strcmp(comp->_type, "label")==0) { |
|
3124 return position; |
|
3125 } |
|
3126 if( comp->isa(Component::DEF) |
|
3127 && comp->isa(Component::USE) ) { |
|
3128 ++position; |
|
3129 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF |
|
3130 } |
|
3131 } |
|
3132 |
|
3133 return -1; |
|
3134 } |
|
3135 |
|
3136 int ComponentList::method_position() { |
|
3137 PreserveIter pi(this); |
|
3138 int position = 0; |
|
3139 reset(); |
|
3140 for( Component *comp; (comp = iter()) != NULL; ++position) { |
|
3141 // When the first component is not a DEF, |
|
3142 // leave space for the result operand! |
|
3143 if ( position==0 && (! comp->isa(Component::DEF)) ) { |
|
3144 ++position; |
|
3145 } |
|
3146 if (strcmp(comp->_type, "method")==0) { |
|
3147 return position; |
|
3148 } |
|
3149 if( comp->isa(Component::DEF) |
|
3150 && comp->isa(Component::USE) ) { |
|
3151 ++position; |
|
3152 if( position != 1 ) --position; // only use two slots for the 1st USE_DEF |
|
3153 } |
|
3154 } |
|
3155 |
|
3156 return -1; |
|
3157 } |
|
3158 |
|
3159 void ComponentList::dump() { output(stderr); } |
|
3160 |
|
3161 void ComponentList::output(FILE *fp) { |
|
3162 PreserveIter pi(this); |
|
3163 fprintf(fp, "\n"); |
|
3164 Component *component; |
|
3165 for (reset(); (component = iter()) != NULL;) { |
|
3166 component->output(fp); |
|
3167 } |
|
3168 fprintf(fp, "\n"); |
|
3169 } |
|
3170 |
|
3171 //------------------------------MatchNode-------------------------------------- |
|
3172 MatchNode::MatchNode(ArchDesc &ad, const char *result, const char *mexpr, |
|
3173 const char *opType, MatchNode *lChild, MatchNode *rChild) |
|
3174 : _AD(ad), _result(result), _name(mexpr), _opType(opType), |
|
3175 _lChild(lChild), _rChild(rChild), _internalop(0), _numleaves(0), |
|
3176 _commutative_id(0) { |
|
3177 _numleaves = (lChild ? lChild->_numleaves : 0) |
|
3178 + (rChild ? rChild->_numleaves : 0); |
|
3179 } |
|
3180 |
|
3181 MatchNode::MatchNode(ArchDesc &ad, MatchNode& mnode) |
|
3182 : _AD(ad), _result(mnode._result), _name(mnode._name), |
|
3183 _opType(mnode._opType), _lChild(mnode._lChild), _rChild(mnode._rChild), |
|
3184 _internalop(0), _numleaves(mnode._numleaves), |
|
3185 _commutative_id(mnode._commutative_id) { |
|
3186 } |
|
3187 |
|
3188 MatchNode::MatchNode(ArchDesc &ad, MatchNode& mnode, int clone) |
|
3189 : _AD(ad), _result(mnode._result), _name(mnode._name), |
|
3190 _opType(mnode._opType), |
|
3191 _internalop(0), _numleaves(mnode._numleaves), |
|
3192 _commutative_id(mnode._commutative_id) { |
|
3193 if (mnode._lChild) { |
|
3194 _lChild = new MatchNode(ad, *mnode._lChild, clone); |
|
3195 } else { |
|
3196 _lChild = NULL; |
|
3197 } |
|
3198 if (mnode._rChild) { |
|
3199 _rChild = new MatchNode(ad, *mnode._rChild, clone); |
|
3200 } else { |
|
3201 _rChild = NULL; |
|
3202 } |
|
3203 } |
|
3204 |
|
3205 MatchNode::~MatchNode() { |
|
3206 // // This node may not own its children if copied via assignment |
|
3207 // if( _lChild ) delete _lChild; |
|
3208 // if( _rChild ) delete _rChild; |
|
3209 } |
|
3210 |
|
3211 bool MatchNode::find_type(const char *type, int &position) const { |
|
3212 if ( (_lChild != NULL) && (_lChild->find_type(type, position)) ) return true; |
|
3213 if ( (_rChild != NULL) && (_rChild->find_type(type, position)) ) return true; |
|
3214 |
|
3215 if (strcmp(type,_opType)==0) { |
|
3216 return true; |
|
3217 } else { |
|
3218 ++position; |
|
3219 } |
|
3220 return false; |
|
3221 } |
|
3222 |
|
3223 // Recursive call collecting info on top-level operands, not transitive. |
|
3224 // Implementation does not modify state of internal structures. |
|
3225 void MatchNode::append_components(FormDict& locals, ComponentList& components, |
|
3226 bool def_flag) const { |
|
3227 int usedef = def_flag ? Component::DEF : Component::USE; |
|
3228 FormDict &globals = _AD.globalNames(); |
|
3229 |
|
3230 assert (_name != NULL, "MatchNode::build_components encountered empty node\n"); |
|
3231 // Base case |
|
3232 if (_lChild==NULL && _rChild==NULL) { |
|
3233 // If _opType is not an operation, do not build a component for it ##### |
|
3234 const Form *f = globals[_opType]; |
|
3235 if( f != NULL ) { |
|
3236 // Add non-ideals that are operands, operand-classes, |
|
3237 if( ! f->ideal_only() |
|
3238 && (f->is_opclass() || f->is_operand()) ) { |
|
3239 components.insert(_name, _opType, usedef, true); |
|
3240 } |
|
3241 } |
|
3242 return; |
|
3243 } |
|
3244 // Promote results of "Set" to DEF |
|
3245 bool tmpdef_flag = (!strcmp(_opType, "Set")) ? true : false; |
|
3246 if (_lChild) _lChild->append_components(locals, components, tmpdef_flag); |
|
3247 tmpdef_flag = false; // only applies to component immediately following 'Set' |
|
3248 if (_rChild) _rChild->append_components(locals, components, tmpdef_flag); |
|
3249 } |
|
3250 |
|
3251 // Find the n'th base-operand in the match node, |
|
3252 // recursively investigates match rules of user-defined operands. |
|
3253 // |
|
3254 // Implementation does not modify state of internal structures since they |
|
3255 // can be shared. |
|
3256 bool MatchNode::base_operand(uint &position, FormDict &globals, |
|
3257 const char * &result, const char * &name, |
|
3258 const char * &opType) const { |
|
3259 assert (_name != NULL, "MatchNode::base_operand encountered empty node\n"); |
|
3260 // Base case |
|
3261 if (_lChild==NULL && _rChild==NULL) { |
|
3262 // Check for special case: "Universe", "label" |
|
3263 if (strcmp(_opType,"Universe") == 0 || strcmp(_opType,"label")==0 ) { |
|
3264 if (position == 0) { |
|
3265 result = _result; |
|
3266 name = _name; |
|
3267 opType = _opType; |
|
3268 return 1; |
|
3269 } else { |
|
3270 -- position; |
|
3271 return 0; |
|
3272 } |
|
3273 } |
|
3274 |
|
3275 const Form *form = globals[_opType]; |
|
3276 MatchNode *matchNode = NULL; |
|
3277 // Check for user-defined type |
|
3278 if (form) { |
|
3279 // User operand or instruction? |
|
3280 OperandForm *opForm = form->is_operand(); |
|
3281 InstructForm *inForm = form->is_instruction(); |
|
3282 if ( opForm ) { |
|
3283 matchNode = (MatchNode*)opForm->_matrule; |
|
3284 } else if ( inForm ) { |
|
3285 matchNode = (MatchNode*)inForm->_matrule; |
|
3286 } |
|
3287 } |
|
3288 // if this is user-defined, recurse on match rule |
|
3289 // User-defined operand and instruction forms have a match-rule. |
|
3290 if (matchNode) { |
|
3291 return (matchNode->base_operand(position,globals,result,name,opType)); |
|
3292 } else { |
|
3293 // Either not a form, or a system-defined form (no match rule). |
|
3294 if (position==0) { |
|
3295 result = _result; |
|
3296 name = _name; |
|
3297 opType = _opType; |
|
3298 return 1; |
|
3299 } else { |
|
3300 --position; |
|
3301 return 0; |
|
3302 } |
|
3303 } |
|
3304 |
|
3305 } else { |
|
3306 // Examine the left child and right child as well |
|
3307 if (_lChild) { |
|
3308 if (_lChild->base_operand(position, globals, result, name, opType)) |
|
3309 return 1; |
|
3310 } |
|
3311 |
|
3312 if (_rChild) { |
|
3313 if (_rChild->base_operand(position, globals, result, name, opType)) |
|
3314 return 1; |
|
3315 } |
|
3316 } |
|
3317 |
|
3318 return 0; |
|
3319 } |
|
3320 |
|
3321 // Recursive call on all operands' match rules in my match rule. |
|
3322 uint MatchNode::num_consts(FormDict &globals) const { |
|
3323 uint index = 0; |
|
3324 uint num_consts = 0; |
|
3325 const char *result; |
|
3326 const char *name; |
|
3327 const char *opType; |
|
3328 |
|
3329 for (uint position = index; |
|
3330 base_operand(position,globals,result,name,opType); position = index) { |
|
3331 ++index; |
|
3332 if( ideal_to_const_type(opType) ) num_consts++; |
|
3333 } |
|
3334 |
|
3335 return num_consts; |
|
3336 } |
|
3337 |
|
3338 // Recursive call on all operands' match rules in my match rule. |
|
3339 // Constants in match rule subtree with specified type |
|
3340 uint MatchNode::num_consts(FormDict &globals, Form::DataType type) const { |
|
3341 uint index = 0; |
|
3342 uint num_consts = 0; |
|
3343 const char *result; |
|
3344 const char *name; |
|
3345 const char *opType; |
|
3346 |
|
3347 for (uint position = index; |
|
3348 base_operand(position,globals,result,name,opType); position = index) { |
|
3349 ++index; |
|
3350 if( ideal_to_const_type(opType) == type ) num_consts++; |
|
3351 } |
|
3352 |
|
3353 return num_consts; |
|
3354 } |
|
3355 |
|
3356 // Recursive call on all operands' match rules in my match rule. |
|
3357 uint MatchNode::num_const_ptrs(FormDict &globals) const { |
|
3358 return num_consts( globals, Form::idealP ); |
|
3359 } |
|
3360 |
|
3361 bool MatchNode::sets_result() const { |
|
3362 return ( (strcmp(_name,"Set") == 0) ? true : false ); |
|
3363 } |
|
3364 |
|
3365 const char *MatchNode::reduce_right(FormDict &globals) const { |
|
3366 // If there is no right reduction, return NULL. |
|
3367 const char *rightStr = NULL; |
|
3368 |
|
3369 // If we are a "Set", start from the right child. |
|
3370 const MatchNode *const mnode = sets_result() ? |
|
3371 (const MatchNode *)this->_rChild : |
|
3372 (const MatchNode *)this; |
|
3373 |
|
3374 // If our right child exists, it is the right reduction |
|
3375 if ( mnode->_rChild ) { |
|
3376 rightStr = mnode->_rChild->_internalop ? mnode->_rChild->_internalop |
|
3377 : mnode->_rChild->_opType; |
|
3378 } |
|
3379 // Else, May be simple chain rule: (Set dst operand_form), rightStr=NULL; |
|
3380 return rightStr; |
|
3381 } |
|
3382 |
|
3383 const char *MatchNode::reduce_left(FormDict &globals) const { |
|
3384 // If there is no left reduction, return NULL. |
|
3385 const char *leftStr = NULL; |
|
3386 |
|
3387 // If we are a "Set", start from the right child. |
|
3388 const MatchNode *const mnode = sets_result() ? |
|
3389 (const MatchNode *)this->_rChild : |
|
3390 (const MatchNode *)this; |
|
3391 |
|
3392 // If our left child exists, it is the left reduction |
|
3393 if ( mnode->_lChild ) { |
|
3394 leftStr = mnode->_lChild->_internalop ? mnode->_lChild->_internalop |
|
3395 : mnode->_lChild->_opType; |
|
3396 } else { |
|
3397 // May be simple chain rule: (Set dst operand_form_source) |
|
3398 if ( sets_result() ) { |
|
3399 OperandForm *oper = globals[mnode->_opType]->is_operand(); |
|
3400 if( oper ) { |
|
3401 leftStr = mnode->_opType; |
|
3402 } |
|
3403 } |
|
3404 } |
|
3405 return leftStr; |
|
3406 } |
|
3407 |
|
3408 //------------------------------count_instr_names------------------------------ |
|
3409 // Count occurrences of operands names in the leaves of the instruction |
|
3410 // match rule. |
|
3411 void MatchNode::count_instr_names( Dict &names ) { |
|
3412 if( this == NULL ) return; |
|
3413 if( _lChild ) _lChild->count_instr_names(names); |
|
3414 if( _rChild ) _rChild->count_instr_names(names); |
|
3415 if( !_lChild && !_rChild ) { |
|
3416 uintptr_t cnt = (uintptr_t)names[_name]; |
|
3417 cnt++; // One more name found |
|
3418 names.Insert(_name,(void*)cnt); |
|
3419 } |
|
3420 } |
|
3421 |
|
3422 //------------------------------build_instr_pred------------------------------- |
|
3423 // Build a path to 'name' in buf. Actually only build if cnt is zero, so we |
|
3424 // can skip some leading instances of 'name'. |
|
3425 int MatchNode::build_instr_pred( char *buf, const char *name, int cnt ) { |
|
3426 if( _lChild ) { |
|
3427 if( !cnt ) strcpy( buf, "_kids[0]->" ); |
|
3428 cnt = _lChild->build_instr_pred( buf+strlen(buf), name, cnt ); |
|
3429 if( cnt < 0 ) return cnt; // Found it, all done |
|
3430 } |
|
3431 if( _rChild ) { |
|
3432 if( !cnt ) strcpy( buf, "_kids[1]->" ); |
|
3433 cnt = _rChild->build_instr_pred( buf+strlen(buf), name, cnt ); |
|
3434 if( cnt < 0 ) return cnt; // Found it, all done |
|
3435 } |
|
3436 if( !_lChild && !_rChild ) { // Found a leaf |
|
3437 // Wrong name? Give up... |
|
3438 if( strcmp(name,_name) ) return cnt; |
|
3439 if( !cnt ) strcpy(buf,"_leaf"); |
|
3440 return cnt-1; |
|
3441 } |
|
3442 return cnt; |
|
3443 } |
|
3444 |
|
3445 |
|
3446 //------------------------------build_internalop------------------------------- |
|
3447 // Build string representation of subtree |
|
3448 void MatchNode::build_internalop( ) { |
|
3449 char *iop, *subtree; |
|
3450 const char *lstr, *rstr; |
|
3451 // Build string representation of subtree |
|
3452 // Operation lchildType rchildType |
|
3453 int len = (int)strlen(_opType) + 4; |
|
3454 lstr = (_lChild) ? ((_lChild->_internalop) ? |
|
3455 _lChild->_internalop : _lChild->_opType) : ""; |
|
3456 rstr = (_rChild) ? ((_rChild->_internalop) ? |
|
3457 _rChild->_internalop : _rChild->_opType) : ""; |
|
3458 len += (int)strlen(lstr) + (int)strlen(rstr); |
|
3459 subtree = (char *)malloc(len); |
|
3460 sprintf(subtree,"_%s_%s_%s", _opType, lstr, rstr); |
|
3461 // Hash the subtree string in _internalOps; if a name exists, use it |
|
3462 iop = (char *)_AD._internalOps[subtree]; |
|
3463 // Else create a unique name, and add it to the hash table |
|
3464 if (iop == NULL) { |
|
3465 iop = subtree; |
|
3466 _AD._internalOps.Insert(subtree, iop); |
|
3467 _AD._internalOpNames.addName(iop); |
|
3468 _AD._internalMatch.Insert(iop, this); |
|
3469 } |
|
3470 // Add the internal operand name to the MatchNode |
|
3471 _internalop = iop; |
|
3472 _result = iop; |
|
3473 } |
|
3474 |
|
3475 |
|
3476 void MatchNode::dump() { |
|
3477 output(stderr); |
|
3478 } |
|
3479 |
|
3480 void MatchNode::output(FILE *fp) { |
|
3481 if (_lChild==0 && _rChild==0) { |
|
3482 fprintf(fp," %s",_name); // operand |
|
3483 } |
|
3484 else { |
|
3485 fprintf(fp," (%s ",_name); // " (opcodeName " |
|
3486 if(_lChild) _lChild->output(fp); // left operand |
|
3487 if(_rChild) _rChild->output(fp); // right operand |
|
3488 fprintf(fp,")"); // ")" |
|
3489 } |
|
3490 } |
|
3491 |
|
3492 int MatchNode::needs_ideal_memory_edge(FormDict &globals) const { |
|
3493 static const char *needs_ideal_memory_list[] = { |
|
3494 "StoreI","StoreL","StoreP","StoreN","StoreNKlass","StoreD","StoreF" , |
|
3495 "StoreB","StoreC","Store" ,"StoreFP", |
|
3496 "LoadI", "LoadL", "LoadP" ,"LoadN", "LoadD" ,"LoadF" , |
|
3497 "LoadB" , "LoadUB", "LoadUS" ,"LoadS" ,"Load" , |
|
3498 "StoreVector", "LoadVector", |
|
3499 "LoadRange", "LoadKlass", "LoadNKlass", "LoadL_unaligned", "LoadD_unaligned", |
|
3500 "LoadPLocked", |
|
3501 "StorePConditional", "StoreIConditional", "StoreLConditional", |
|
3502 "CompareAndSwapB", "CompareAndSwapS", "CompareAndSwapI", "CompareAndSwapL", "CompareAndSwapP", "CompareAndSwapN", |
|
3503 "WeakCompareAndSwapB", "WeakCompareAndSwapS", "WeakCompareAndSwapI", "WeakCompareAndSwapL", "WeakCompareAndSwapP", "WeakCompareAndSwapN", |
|
3504 "CompareAndExchangeB", "CompareAndExchangeS", "CompareAndExchangeI", "CompareAndExchangeL", "CompareAndExchangeP", "CompareAndExchangeN", |
|
3505 "StoreCM", |
|
3506 "ClearArray", |
|
3507 "GetAndSetB", "GetAndSetS", "GetAndAddI", "GetAndSetI", "GetAndSetP", |
|
3508 "GetAndAddB", "GetAndAddS", "GetAndAddL", "GetAndSetL", "GetAndSetN", |
|
3509 }; |
|
3510 int cnt = sizeof(needs_ideal_memory_list)/sizeof(char*); |
|
3511 if( strcmp(_opType,"PrefetchAllocation")==0 ) |
|
3512 return 1; |
|
3513 if( _lChild ) { |
|
3514 const char *opType = _lChild->_opType; |
|
3515 for( int i=0; i<cnt; i++ ) |
|
3516 if( strcmp(opType,needs_ideal_memory_list[i]) == 0 ) |
|
3517 return 1; |
|
3518 if( _lChild->needs_ideal_memory_edge(globals) ) |
|
3519 return 1; |
|
3520 } |
|
3521 if( _rChild ) { |
|
3522 const char *opType = _rChild->_opType; |
|
3523 for( int i=0; i<cnt; i++ ) |
|
3524 if( strcmp(opType,needs_ideal_memory_list[i]) == 0 ) |
|
3525 return 1; |
|
3526 if( _rChild->needs_ideal_memory_edge(globals) ) |
|
3527 return 1; |
|
3528 } |
|
3529 |
|
3530 return 0; |
|
3531 } |
|
3532 |
|
3533 // TRUE if defines a derived oop, and so needs a base oop edge present |
|
3534 // post-matching. |
|
3535 int MatchNode::needs_base_oop_edge() const { |
|
3536 if( !strcmp(_opType,"AddP") ) return 1; |
|
3537 if( strcmp(_opType,"Set") ) return 0; |
|
3538 return !strcmp(_rChild->_opType,"AddP"); |
|
3539 } |
|
3540 |
|
3541 int InstructForm::needs_base_oop_edge(FormDict &globals) const { |
|
3542 if( is_simple_chain_rule(globals) ) { |
|
3543 const char *src = _matrule->_rChild->_opType; |
|
3544 OperandForm *src_op = globals[src]->is_operand(); |
|
3545 assert( src_op, "Not operand class of chain rule" ); |
|
3546 return src_op->_matrule ? src_op->_matrule->needs_base_oop_edge() : 0; |
|
3547 } // Else check instruction |
|
3548 |
|
3549 return _matrule ? _matrule->needs_base_oop_edge() : 0; |
|
3550 } |
|
3551 |
|
3552 |
|
3553 //-------------------------cisc spilling methods------------------------------- |
|
3554 // helper routines and methods for detecting cisc-spilling instructions |
|
3555 //-------------------------cisc_spill_merge------------------------------------ |
|
3556 int MatchNode::cisc_spill_merge(int left_spillable, int right_spillable) { |
|
3557 int cisc_spillable = Maybe_cisc_spillable; |
|
3558 |
|
3559 // Combine results of left and right checks |
|
3560 if( (left_spillable == Maybe_cisc_spillable) && (right_spillable == Maybe_cisc_spillable) ) { |
|
3561 // neither side is spillable, nor prevents cisc spilling |
|
3562 cisc_spillable = Maybe_cisc_spillable; |
|
3563 } |
|
3564 else if( (left_spillable == Maybe_cisc_spillable) && (right_spillable > Maybe_cisc_spillable) ) { |
|
3565 // right side is spillable |
|
3566 cisc_spillable = right_spillable; |
|
3567 } |
|
3568 else if( (right_spillable == Maybe_cisc_spillable) && (left_spillable > Maybe_cisc_spillable) ) { |
|
3569 // left side is spillable |
|
3570 cisc_spillable = left_spillable; |
|
3571 } |
|
3572 else if( (left_spillable == Not_cisc_spillable) || (right_spillable == Not_cisc_spillable) ) { |
|
3573 // left or right prevents cisc spilling this instruction |
|
3574 cisc_spillable = Not_cisc_spillable; |
|
3575 } |
|
3576 else { |
|
3577 // Only allow one to spill |
|
3578 cisc_spillable = Not_cisc_spillable; |
|
3579 } |
|
3580 |
|
3581 return cisc_spillable; |
|
3582 } |
|
3583 |
|
3584 //-------------------------root_ops_match-------------------------------------- |
|
3585 bool static root_ops_match(FormDict &globals, const char *op1, const char *op2) { |
|
3586 // Base Case: check that the current operands/operations match |
|
3587 assert( op1, "Must have op's name"); |
|
3588 assert( op2, "Must have op's name"); |
|
3589 const Form *form1 = globals[op1]; |
|
3590 const Form *form2 = globals[op2]; |
|
3591 |
|
3592 return (form1 == form2); |
|
3593 } |
|
3594 |
|
3595 //-------------------------cisc_spill_match_node------------------------------- |
|
3596 // Recursively check two MatchRules for legal conversion via cisc-spilling |
|
3597 int MatchNode::cisc_spill_match(FormDict& globals, RegisterForm* registers, MatchNode* mRule2, const char* &operand, const char* ®_type) { |
|
3598 int cisc_spillable = Maybe_cisc_spillable; |
|
3599 int left_spillable = Maybe_cisc_spillable; |
|
3600 int right_spillable = Maybe_cisc_spillable; |
|
3601 |
|
3602 // Check that each has same number of operands at this level |
|
3603 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) |
|
3604 return Not_cisc_spillable; |
|
3605 |
|
3606 // Base Case: check that the current operands/operations match |
|
3607 // or are CISC spillable |
|
3608 assert( _opType, "Must have _opType"); |
|
3609 assert( mRule2->_opType, "Must have _opType"); |
|
3610 const Form *form = globals[_opType]; |
|
3611 const Form *form2 = globals[mRule2->_opType]; |
|
3612 if( form == form2 ) { |
|
3613 cisc_spillable = Maybe_cisc_spillable; |
|
3614 } else { |
|
3615 const InstructForm *form2_inst = form2 ? form2->is_instruction() : NULL; |
|
3616 const char *name_left = mRule2->_lChild ? mRule2->_lChild->_opType : NULL; |
|
3617 const char *name_right = mRule2->_rChild ? mRule2->_rChild->_opType : NULL; |
|
3618 DataType data_type = Form::none; |
|
3619 if (form->is_operand()) { |
|
3620 // Make sure the loadX matches the type of the reg |
|
3621 data_type = form->ideal_to_Reg_type(form->is_operand()->ideal_type(globals)); |
|
3622 } |
|
3623 // Detect reg vs (loadX memory) |
|
3624 if( form->is_cisc_reg(globals) |
|
3625 && form2_inst |
|
3626 && data_type != Form::none |
|
3627 && (is_load_from_memory(mRule2->_opType) == data_type) // reg vs. (load memory) |
|
3628 && (name_left != NULL) // NOT (load) |
|
3629 && (name_right == NULL) ) { // NOT (load memory foo) |
|
3630 const Form *form2_left = name_left ? globals[name_left] : NULL; |
|
3631 if( form2_left && form2_left->is_cisc_mem(globals) ) { |
|
3632 cisc_spillable = Is_cisc_spillable; |
|
3633 operand = _name; |
|
3634 reg_type = _result; |
|
3635 return Is_cisc_spillable; |
|
3636 } else { |
|
3637 cisc_spillable = Not_cisc_spillable; |
|
3638 } |
|
3639 } |
|
3640 // Detect reg vs memory |
|
3641 else if( form->is_cisc_reg(globals) && form2->is_cisc_mem(globals) ) { |
|
3642 cisc_spillable = Is_cisc_spillable; |
|
3643 operand = _name; |
|
3644 reg_type = _result; |
|
3645 return Is_cisc_spillable; |
|
3646 } else { |
|
3647 cisc_spillable = Not_cisc_spillable; |
|
3648 } |
|
3649 } |
|
3650 |
|
3651 // If cisc is still possible, check rest of tree |
|
3652 if( cisc_spillable == Maybe_cisc_spillable ) { |
|
3653 // Check that each has same number of operands at this level |
|
3654 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) return Not_cisc_spillable; |
|
3655 |
|
3656 // Check left operands |
|
3657 if( (_lChild == NULL) && (mRule2->_lChild == NULL) ) { |
|
3658 left_spillable = Maybe_cisc_spillable; |
|
3659 } else if (_lChild != NULL) { |
|
3660 left_spillable = _lChild->cisc_spill_match(globals, registers, mRule2->_lChild, operand, reg_type); |
|
3661 } |
|
3662 |
|
3663 // Check right operands |
|
3664 if( (_rChild == NULL) && (mRule2->_rChild == NULL) ) { |
|
3665 right_spillable = Maybe_cisc_spillable; |
|
3666 } else if (_rChild != NULL) { |
|
3667 right_spillable = _rChild->cisc_spill_match(globals, registers, mRule2->_rChild, operand, reg_type); |
|
3668 } |
|
3669 |
|
3670 // Combine results of left and right checks |
|
3671 cisc_spillable = cisc_spill_merge(left_spillable, right_spillable); |
|
3672 } |
|
3673 |
|
3674 return cisc_spillable; |
|
3675 } |
|
3676 |
|
3677 //---------------------------cisc_spill_match_rule------------------------------ |
|
3678 // Recursively check two MatchRules for legal conversion via cisc-spilling |
|
3679 // This method handles the root of Match tree, |
|
3680 // general recursive checks done in MatchNode |
|
3681 int MatchRule::matchrule_cisc_spill_match(FormDict& globals, RegisterForm* registers, |
|
3682 MatchRule* mRule2, const char* &operand, |
|
3683 const char* ®_type) { |
|
3684 int cisc_spillable = Maybe_cisc_spillable; |
|
3685 int left_spillable = Maybe_cisc_spillable; |
|
3686 int right_spillable = Maybe_cisc_spillable; |
|
3687 |
|
3688 // Check that each sets a result |
|
3689 if( !(sets_result() && mRule2->sets_result()) ) return Not_cisc_spillable; |
|
3690 // Check that each has same number of operands at this level |
|
3691 if( (_lChild && !(mRule2->_lChild)) || (_rChild && !(mRule2->_rChild)) ) return Not_cisc_spillable; |
|
3692 |
|
3693 // Check left operands: at root, must be target of 'Set' |
|
3694 if( (_lChild == NULL) || (mRule2->_lChild == NULL) ) { |
|
3695 left_spillable = Not_cisc_spillable; |
|
3696 } else { |
|
3697 // Do not support cisc-spilling instruction's target location |
|
3698 if( root_ops_match(globals, _lChild->_opType, mRule2->_lChild->_opType) ) { |
|
3699 left_spillable = Maybe_cisc_spillable; |
|
3700 } else { |
|
3701 left_spillable = Not_cisc_spillable; |
|
3702 } |
|
3703 } |
|
3704 |
|
3705 // Check right operands: recursive walk to identify reg->mem operand |
|
3706 if( (_rChild == NULL) && (mRule2->_rChild == NULL) ) { |
|
3707 right_spillable = Maybe_cisc_spillable; |
|
3708 } else { |
|
3709 right_spillable = _rChild->cisc_spill_match(globals, registers, mRule2->_rChild, operand, reg_type); |
|
3710 } |
|
3711 |
|
3712 // Combine results of left and right checks |
|
3713 cisc_spillable = cisc_spill_merge(left_spillable, right_spillable); |
|
3714 |
|
3715 return cisc_spillable; |
|
3716 } |
|
3717 |
|
3718 //----------------------------- equivalent ------------------------------------ |
|
3719 // Recursively check to see if two match rules are equivalent. |
|
3720 // This rule handles the root. |
|
3721 bool MatchRule::equivalent(FormDict &globals, MatchNode *mRule2) { |
|
3722 // Check that each sets a result |
|
3723 if (sets_result() != mRule2->sets_result()) { |
|
3724 return false; |
|
3725 } |
|
3726 |
|
3727 // Check that the current operands/operations match |
|
3728 assert( _opType, "Must have _opType"); |
|
3729 assert( mRule2->_opType, "Must have _opType"); |
|
3730 const Form *form = globals[_opType]; |
|
3731 const Form *form2 = globals[mRule2->_opType]; |
|
3732 if( form != form2 ) { |
|
3733 return false; |
|
3734 } |
|
3735 |
|
3736 if (_lChild ) { |
|
3737 if( !_lChild->equivalent(globals, mRule2->_lChild) ) |
|
3738 return false; |
|
3739 } else if (mRule2->_lChild) { |
|
3740 return false; // I have NULL left child, mRule2 has non-NULL left child. |
|
3741 } |
|
3742 |
|
3743 if (_rChild ) { |
|
3744 if( !_rChild->equivalent(globals, mRule2->_rChild) ) |
|
3745 return false; |
|
3746 } else if (mRule2->_rChild) { |
|
3747 return false; // I have NULL right child, mRule2 has non-NULL right child. |
|
3748 } |
|
3749 |
|
3750 // We've made it through the gauntlet. |
|
3751 return true; |
|
3752 } |
|
3753 |
|
3754 //----------------------------- equivalent ------------------------------------ |
|
3755 // Recursively check to see if two match rules are equivalent. |
|
3756 // This rule handles the operands. |
|
3757 bool MatchNode::equivalent(FormDict &globals, MatchNode *mNode2) { |
|
3758 if( !mNode2 ) |
|
3759 return false; |
|
3760 |
|
3761 // Check that the current operands/operations match |
|
3762 assert( _opType, "Must have _opType"); |
|
3763 assert( mNode2->_opType, "Must have _opType"); |
|
3764 const Form *form = globals[_opType]; |
|
3765 const Form *form2 = globals[mNode2->_opType]; |
|
3766 if( form != form2 ) { |
|
3767 return false; |
|
3768 } |
|
3769 |
|
3770 // Check that their children also match |
|
3771 if (_lChild ) { |
|
3772 if( !_lChild->equivalent(globals, mNode2->_lChild) ) |
|
3773 return false; |
|
3774 } else if (mNode2->_lChild) { |
|
3775 return false; // I have NULL left child, mNode2 has non-NULL left child. |
|
3776 } |
|
3777 |
|
3778 if (_rChild ) { |
|
3779 if( !_rChild->equivalent(globals, mNode2->_rChild) ) |
|
3780 return false; |
|
3781 } else if (mNode2->_rChild) { |
|
3782 return false; // I have NULL right child, mNode2 has non-NULL right child. |
|
3783 } |
|
3784 |
|
3785 // We've made it through the gauntlet. |
|
3786 return true; |
|
3787 } |
|
3788 |
|
3789 //-------------------------- has_commutative_op ------------------------------- |
|
3790 // Recursively check for commutative operations with subtree operands |
|
3791 // which could be swapped. |
|
3792 void MatchNode::count_commutative_op(int& count) { |
|
3793 static const char *commut_op_list[] = { |
|
3794 "AddI","AddL","AddF","AddD", |
|
3795 "AddVB","AddVS","AddVI","AddVL","AddVF","AddVD", |
|
3796 "AndI","AndL", |
|
3797 "AndV", |
|
3798 "MaxI","MinI", |
|
3799 "MulI","MulL","MulF","MulD", |
|
3800 "MulVS","MulVI","MulVL","MulVF","MulVD", |
|
3801 "OrI","OrL", |
|
3802 "OrV", |
|
3803 "XorI","XorL", |
|
3804 "XorV" |
|
3805 }; |
|
3806 int cnt = sizeof(commut_op_list)/sizeof(char*); |
|
3807 |
|
3808 if( _lChild && _rChild && (_lChild->_lChild || _rChild->_lChild) ) { |
|
3809 // Don't swap if right operand is an immediate constant. |
|
3810 bool is_const = false; |
|
3811 if( _rChild->_lChild == NULL && _rChild->_rChild == NULL ) { |
|
3812 FormDict &globals = _AD.globalNames(); |
|
3813 const Form *form = globals[_rChild->_opType]; |
|
3814 if ( form ) { |
|
3815 OperandForm *oper = form->is_operand(); |
|
3816 if( oper && oper->interface_type(globals) == Form::constant_interface ) |
|
3817 is_const = true; |
|
3818 } |
|
3819 } |
|
3820 if( !is_const ) { |
|
3821 for( int i=0; i<cnt; i++ ) { |
|
3822 if( strcmp(_opType, commut_op_list[i]) == 0 ) { |
|
3823 count++; |
|
3824 _commutative_id = count; // id should be > 0 |
|
3825 break; |
|
3826 } |
|
3827 } |
|
3828 } |
|
3829 } |
|
3830 if( _lChild ) |
|
3831 _lChild->count_commutative_op(count); |
|
3832 if( _rChild ) |
|
3833 _rChild->count_commutative_op(count); |
|
3834 } |
|
3835 |
|
3836 //-------------------------- swap_commutative_op ------------------------------ |
|
3837 // Recursively swap specified commutative operation with subtree operands. |
|
3838 void MatchNode::swap_commutative_op(bool atroot, int id) { |
|
3839 if( _commutative_id == id ) { // id should be > 0 |
|
3840 assert(_lChild && _rChild && (_lChild->_lChild || _rChild->_lChild ), |
|
3841 "not swappable operation"); |
|
3842 MatchNode* tmp = _lChild; |
|
3843 _lChild = _rChild; |
|
3844 _rChild = tmp; |
|
3845 // Don't exit here since we need to build internalop. |
|
3846 } |
|
3847 |
|
3848 bool is_set = ( strcmp(_opType, "Set") == 0 ); |
|
3849 if( _lChild ) |
|
3850 _lChild->swap_commutative_op(is_set, id); |
|
3851 if( _rChild ) |
|
3852 _rChild->swap_commutative_op(is_set, id); |
|
3853 |
|
3854 // If not the root, reduce this subtree to an internal operand |
|
3855 if( !atroot && (_lChild || _rChild) ) { |
|
3856 build_internalop(); |
|
3857 } |
|
3858 } |
|
3859 |
|
3860 //-------------------------- swap_commutative_op ------------------------------ |
|
3861 // Recursively swap specified commutative operation with subtree operands. |
|
3862 void MatchRule::matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt) { |
|
3863 assert(match_rules_cnt < 100," too many match rule clones"); |
|
3864 // Clone |
|
3865 MatchRule* clone = new MatchRule(_AD, this); |
|
3866 // Swap operands of commutative operation |
|
3867 ((MatchNode*)clone)->swap_commutative_op(true, count); |
|
3868 char* buf = (char*) malloc(strlen(instr_ident) + 4); |
|
3869 sprintf(buf, "%s_%d", instr_ident, match_rules_cnt++); |
|
3870 clone->_result = buf; |
|
3871 |
|
3872 clone->_next = this->_next; |
|
3873 this-> _next = clone; |
|
3874 if( (--count) > 0 ) { |
|
3875 this-> matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
|
3876 clone->matchrule_swap_commutative_op(instr_ident, count, match_rules_cnt); |
|
3877 } |
|
3878 } |
|
3879 |
|
3880 //------------------------------MatchRule-------------------------------------- |
|
3881 MatchRule::MatchRule(ArchDesc &ad) |
|
3882 : MatchNode(ad), _depth(0), _construct(NULL), _numchilds(0) { |
|
3883 _next = NULL; |
|
3884 } |
|
3885 |
|
3886 MatchRule::MatchRule(ArchDesc &ad, MatchRule* mRule) |
|
3887 : MatchNode(ad, *mRule, 0), _depth(mRule->_depth), |
|
3888 _construct(mRule->_construct), _numchilds(mRule->_numchilds) { |
|
3889 _next = NULL; |
|
3890 } |
|
3891 |
|
3892 MatchRule::MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char *cnstr, |
|
3893 int numleaves) |
|
3894 : MatchNode(ad,*mroot), _depth(depth), _construct(cnstr), |
|
3895 _numchilds(0) { |
|
3896 _next = NULL; |
|
3897 mroot->_lChild = NULL; |
|
3898 mroot->_rChild = NULL; |
|
3899 delete mroot; |
|
3900 _numleaves = numleaves; |
|
3901 _numchilds = (_lChild ? 1 : 0) + (_rChild ? 1 : 0); |
|
3902 } |
|
3903 MatchRule::~MatchRule() { |
|
3904 } |
|
3905 |
|
3906 // Recursive call collecting info on top-level operands, not transitive. |
|
3907 // Implementation does not modify state of internal structures. |
|
3908 void MatchRule::append_components(FormDict& locals, ComponentList& components, bool def_flag) const { |
|
3909 assert (_name != NULL, "MatchNode::build_components encountered empty node\n"); |
|
3910 |
|
3911 MatchNode::append_components(locals, components, |
|
3912 false /* not necessarily a def */); |
|
3913 } |
|
3914 |
|
3915 // Recursive call on all operands' match rules in my match rule. |
|
3916 // Implementation does not modify state of internal structures since they |
|
3917 // can be shared. |
|
3918 // The MatchNode that is called first treats its |
|
3919 bool MatchRule::base_operand(uint &position0, FormDict &globals, |
|
3920 const char *&result, const char * &name, |
|
3921 const char * &opType)const{ |
|
3922 uint position = position0; |
|
3923 |
|
3924 return (MatchNode::base_operand( position, globals, result, name, opType)); |
|
3925 } |
|
3926 |
|
3927 |
|
3928 bool MatchRule::is_base_register(FormDict &globals) const { |
|
3929 uint position = 1; |
|
3930 const char *result = NULL; |
|
3931 const char *name = NULL; |
|
3932 const char *opType = NULL; |
|
3933 if (!base_operand(position, globals, result, name, opType)) { |
|
3934 position = 0; |
|
3935 if( base_operand(position, globals, result, name, opType) && |
|
3936 (strcmp(opType,"RegI")==0 || |
|
3937 strcmp(opType,"RegP")==0 || |
|
3938 strcmp(opType,"RegN")==0 || |
|
3939 strcmp(opType,"RegL")==0 || |
|
3940 strcmp(opType,"RegF")==0 || |
|
3941 strcmp(opType,"RegD")==0 || |
|
3942 strcmp(opType,"VecS")==0 || |
|
3943 strcmp(opType,"VecD")==0 || |
|
3944 strcmp(opType,"VecX")==0 || |
|
3945 strcmp(opType,"VecY")==0 || |
|
3946 strcmp(opType,"VecZ")==0 || |
|
3947 strcmp(opType,"Reg" )==0) ) { |
|
3948 return 1; |
|
3949 } |
|
3950 } |
|
3951 return 0; |
|
3952 } |
|
3953 |
|
3954 Form::DataType MatchRule::is_base_constant(FormDict &globals) const { |
|
3955 uint position = 1; |
|
3956 const char *result = NULL; |
|
3957 const char *name = NULL; |
|
3958 const char *opType = NULL; |
|
3959 if (!base_operand(position, globals, result, name, opType)) { |
|
3960 position = 0; |
|
3961 if (base_operand(position, globals, result, name, opType)) { |
|
3962 return ideal_to_const_type(opType); |
|
3963 } |
|
3964 } |
|
3965 return Form::none; |
|
3966 } |
|
3967 |
|
3968 bool MatchRule::is_chain_rule(FormDict &globals) const { |
|
3969 |
|
3970 // Check for chain rule, and do not generate a match list for it |
|
3971 if ((_lChild == NULL) && (_rChild == NULL) ) { |
|
3972 const Form *form = globals[_opType]; |
|
3973 // If this is ideal, then it is a base match, not a chain rule. |
|
3974 if ( form && form->is_operand() && (!form->ideal_only())) { |
|
3975 return true; |
|
3976 } |
|
3977 } |
|
3978 // Check for "Set" form of chain rule, and do not generate a match list |
|
3979 if (_rChild) { |
|
3980 const char *rch = _rChild->_opType; |
|
3981 const Form *form = globals[rch]; |
|
3982 if ((!strcmp(_opType,"Set") && |
|
3983 ((form) && form->is_operand()))) { |
|
3984 return true; |
|
3985 } |
|
3986 } |
|
3987 return false; |
|
3988 } |
|
3989 |
|
3990 int MatchRule::is_ideal_copy() const { |
|
3991 if( _rChild ) { |
|
3992 const char *opType = _rChild->_opType; |
|
3993 #if 1 |
|
3994 if( strcmp(opType,"CastIP")==0 ) |
|
3995 return 1; |
|
3996 #else |
|
3997 if( strcmp(opType,"CastII")==0 ) |
|
3998 return 1; |
|
3999 // Do not treat *CastPP this way, because it |
|
4000 // may transfer a raw pointer to an oop. |
|
4001 // If the register allocator were to coalesce this |
|
4002 // into a single LRG, the GC maps would be incorrect. |
|
4003 //if( strcmp(opType,"CastPP")==0 ) |
|
4004 // return 1; |
|
4005 //if( strcmp(opType,"CheckCastPP")==0 ) |
|
4006 // return 1; |
|
4007 // |
|
4008 // Do not treat CastX2P or CastP2X this way, because |
|
4009 // raw pointers and int types are treated differently |
|
4010 // when saving local & stack info for safepoints in |
|
4011 // Output(). |
|
4012 //if( strcmp(opType,"CastX2P")==0 ) |
|
4013 // return 1; |
|
4014 //if( strcmp(opType,"CastP2X")==0 ) |
|
4015 // return 1; |
|
4016 #endif |
|
4017 } |
|
4018 if( is_chain_rule(_AD.globalNames()) && |
|
4019 _lChild && strncmp(_lChild->_opType,"stackSlot",9)==0 ) |
|
4020 return 1; |
|
4021 return 0; |
|
4022 } |
|
4023 |
|
4024 |
|
4025 int MatchRule::is_expensive() const { |
|
4026 if( _rChild ) { |
|
4027 const char *opType = _rChild->_opType; |
|
4028 if( strcmp(opType,"AtanD")==0 || |
|
4029 strcmp(opType,"DivD")==0 || |
|
4030 strcmp(opType,"DivF")==0 || |
|
4031 strcmp(opType,"DivI")==0 || |
|
4032 strcmp(opType,"Log10D")==0 || |
|
4033 strcmp(opType,"ModD")==0 || |
|
4034 strcmp(opType,"ModF")==0 || |
|
4035 strcmp(opType,"ModI")==0 || |
|
4036 strcmp(opType,"SqrtD")==0 || |
|
4037 strcmp(opType,"TanD")==0 || |
|
4038 strcmp(opType,"ConvD2F")==0 || |
|
4039 strcmp(opType,"ConvD2I")==0 || |
|
4040 strcmp(opType,"ConvD2L")==0 || |
|
4041 strcmp(opType,"ConvF2D")==0 || |
|
4042 strcmp(opType,"ConvF2I")==0 || |
|
4043 strcmp(opType,"ConvF2L")==0 || |
|
4044 strcmp(opType,"ConvI2D")==0 || |
|
4045 strcmp(opType,"ConvI2F")==0 || |
|
4046 strcmp(opType,"ConvI2L")==0 || |
|
4047 strcmp(opType,"ConvL2D")==0 || |
|
4048 strcmp(opType,"ConvL2F")==0 || |
|
4049 strcmp(opType,"ConvL2I")==0 || |
|
4050 strcmp(opType,"DecodeN")==0 || |
|
4051 strcmp(opType,"EncodeP")==0 || |
|
4052 strcmp(opType,"EncodePKlass")==0 || |
|
4053 strcmp(opType,"DecodeNKlass")==0 || |
|
4054 strcmp(opType,"FmaD") == 0 || |
|
4055 strcmp(opType,"FmaF") == 0 || |
|
4056 strcmp(opType,"RoundDouble")==0 || |
|
4057 strcmp(opType,"RoundFloat")==0 || |
|
4058 strcmp(opType,"ReverseBytesI")==0 || |
|
4059 strcmp(opType,"ReverseBytesL")==0 || |
|
4060 strcmp(opType,"ReverseBytesUS")==0 || |
|
4061 strcmp(opType,"ReverseBytesS")==0 || |
|
4062 strcmp(opType,"ReplicateB")==0 || |
|
4063 strcmp(opType,"ReplicateS")==0 || |
|
4064 strcmp(opType,"ReplicateI")==0 || |
|
4065 strcmp(opType,"ReplicateL")==0 || |
|
4066 strcmp(opType,"ReplicateF")==0 || |
|
4067 strcmp(opType,"ReplicateD")==0 || |
|
4068 strcmp(opType,"AddReductionVI")==0 || |
|
4069 strcmp(opType,"AddReductionVL")==0 || |
|
4070 strcmp(opType,"AddReductionVF")==0 || |
|
4071 strcmp(opType,"AddReductionVD")==0 || |
|
4072 strcmp(opType,"MulReductionVI")==0 || |
|
4073 strcmp(opType,"MulReductionVL")==0 || |
|
4074 strcmp(opType,"MulReductionVF")==0 || |
|
4075 strcmp(opType,"MulReductionVD")==0 || |
|
4076 0 /* 0 to line up columns nicely */ ) |
|
4077 return 1; |
|
4078 } |
|
4079 return 0; |
|
4080 } |
|
4081 |
|
4082 bool MatchRule::is_ideal_if() const { |
|
4083 if( !_opType ) return false; |
|
4084 return |
|
4085 !strcmp(_opType,"If" ) || |
|
4086 !strcmp(_opType,"CountedLoopEnd"); |
|
4087 } |
|
4088 |
|
4089 bool MatchRule::is_ideal_fastlock() const { |
|
4090 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
4091 return (strcmp(_rChild->_opType,"FastLock") == 0); |
|
4092 } |
|
4093 return false; |
|
4094 } |
|
4095 |
|
4096 bool MatchRule::is_ideal_membar() const { |
|
4097 if( !_opType ) return false; |
|
4098 return |
|
4099 !strcmp(_opType,"MemBarAcquire") || |
|
4100 !strcmp(_opType,"MemBarRelease") || |
|
4101 !strcmp(_opType,"MemBarAcquireLock") || |
|
4102 !strcmp(_opType,"MemBarReleaseLock") || |
|
4103 !strcmp(_opType,"LoadFence" ) || |
|
4104 !strcmp(_opType,"StoreFence") || |
|
4105 !strcmp(_opType,"MemBarVolatile") || |
|
4106 !strcmp(_opType,"MemBarCPUOrder") || |
|
4107 !strcmp(_opType,"MemBarStoreStore"); |
|
4108 } |
|
4109 |
|
4110 bool MatchRule::is_ideal_loadPC() const { |
|
4111 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
4112 return (strcmp(_rChild->_opType,"LoadPC") == 0); |
|
4113 } |
|
4114 return false; |
|
4115 } |
|
4116 |
|
4117 bool MatchRule::is_ideal_box() const { |
|
4118 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
4119 return (strcmp(_rChild->_opType,"Box") == 0); |
|
4120 } |
|
4121 return false; |
|
4122 } |
|
4123 |
|
4124 bool MatchRule::is_ideal_goto() const { |
|
4125 bool ideal_goto = false; |
|
4126 |
|
4127 if( _opType && (strcmp(_opType,"Goto") == 0) ) { |
|
4128 ideal_goto = true; |
|
4129 } |
|
4130 return ideal_goto; |
|
4131 } |
|
4132 |
|
4133 bool MatchRule::is_ideal_jump() const { |
|
4134 if( _opType ) { |
|
4135 if( !strcmp(_opType,"Jump") ) |
|
4136 return true; |
|
4137 } |
|
4138 return false; |
|
4139 } |
|
4140 |
|
4141 bool MatchRule::is_ideal_bool() const { |
|
4142 if( _opType ) { |
|
4143 if( !strcmp(_opType,"Bool") ) |
|
4144 return true; |
|
4145 } |
|
4146 return false; |
|
4147 } |
|
4148 |
|
4149 |
|
4150 Form::DataType MatchRule::is_ideal_load() const { |
|
4151 Form::DataType ideal_load = Form::none; |
|
4152 |
|
4153 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
4154 const char *opType = _rChild->_opType; |
|
4155 ideal_load = is_load_from_memory(opType); |
|
4156 } |
|
4157 |
|
4158 return ideal_load; |
|
4159 } |
|
4160 |
|
4161 bool MatchRule::is_vector() const { |
|
4162 static const char *vector_list[] = { |
|
4163 "AddVB","AddVS","AddVI","AddVL","AddVF","AddVD", |
|
4164 "SubVB","SubVS","SubVI","SubVL","SubVF","SubVD", |
|
4165 "MulVS","MulVI","MulVL","MulVF","MulVD", |
|
4166 "CMoveVD", |
|
4167 "DivVF","DivVD", |
|
4168 "AbsVF","AbsVD", |
|
4169 "NegVF","NegVD", |
|
4170 "SqrtVD", |
|
4171 "AndV" ,"XorV" ,"OrV", |
|
4172 "AddReductionVI", "AddReductionVL", |
|
4173 "AddReductionVF", "AddReductionVD", |
|
4174 "MulReductionVI", "MulReductionVL", |
|
4175 "MulReductionVF", "MulReductionVD", |
|
4176 "LShiftCntV","RShiftCntV", |
|
4177 "LShiftVB","LShiftVS","LShiftVI","LShiftVL", |
|
4178 "RShiftVB","RShiftVS","RShiftVI","RShiftVL", |
|
4179 "URShiftVB","URShiftVS","URShiftVI","URShiftVL", |
|
4180 "ReplicateB","ReplicateS","ReplicateI","ReplicateL","ReplicateF","ReplicateD", |
|
4181 "LoadVector","StoreVector", |
|
4182 "FmaVD", "FmaVF", |
|
4183 // Next are not supported currently. |
|
4184 "PackB","PackS","PackI","PackL","PackF","PackD","Pack2L","Pack2D", |
|
4185 "ExtractB","ExtractUB","ExtractC","ExtractS","ExtractI","ExtractL","ExtractF","ExtractD" |
|
4186 }; |
|
4187 int cnt = sizeof(vector_list)/sizeof(char*); |
|
4188 if (_rChild) { |
|
4189 const char *opType = _rChild->_opType; |
|
4190 for (int i=0; i<cnt; i++) |
|
4191 if (strcmp(opType,vector_list[i]) == 0) |
|
4192 return true; |
|
4193 } |
|
4194 return false; |
|
4195 } |
|
4196 |
|
4197 |
|
4198 bool MatchRule::skip_antidep_check() const { |
|
4199 // Some loads operate on what is effectively immutable memory so we |
|
4200 // should skip the anti dep computations. For some of these nodes |
|
4201 // the rewritable field keeps the anti dep logic from triggering but |
|
4202 // for certain kinds of LoadKlass it does not since they are |
|
4203 // actually reading memory which could be rewritten by the runtime, |
|
4204 // though never by generated code. This disables it uniformly for |
|
4205 // the nodes that behave like this: LoadKlass, LoadNKlass and |
|
4206 // LoadRange. |
|
4207 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
4208 const char *opType = _rChild->_opType; |
|
4209 if (strcmp("LoadKlass", opType) == 0 || |
|
4210 strcmp("LoadNKlass", opType) == 0 || |
|
4211 strcmp("LoadRange", opType) == 0) { |
|
4212 return true; |
|
4213 } |
|
4214 } |
|
4215 |
|
4216 return false; |
|
4217 } |
|
4218 |
|
4219 |
|
4220 Form::DataType MatchRule::is_ideal_store() const { |
|
4221 Form::DataType ideal_store = Form::none; |
|
4222 |
|
4223 if ( _opType && (strcmp(_opType,"Set") == 0) && _rChild ) { |
|
4224 const char *opType = _rChild->_opType; |
|
4225 ideal_store = is_store_to_memory(opType); |
|
4226 } |
|
4227 |
|
4228 return ideal_store; |
|
4229 } |
|
4230 |
|
4231 |
|
4232 void MatchRule::dump() { |
|
4233 output(stderr); |
|
4234 } |
|
4235 |
|
4236 // Write just one line. |
|
4237 void MatchRule::output_short(FILE *fp) { |
|
4238 fprintf(fp,"MatchRule: ( %s",_name); |
|
4239 if (_lChild) _lChild->output(fp); |
|
4240 if (_rChild) _rChild->output(fp); |
|
4241 fprintf(fp," )"); |
|
4242 } |
|
4243 |
|
4244 void MatchRule::output(FILE *fp) { |
|
4245 output_short(fp); |
|
4246 fprintf(fp,"\n nesting depth = %d\n", _depth); |
|
4247 if (_result) fprintf(fp," Result Type = %s", _result); |
|
4248 fprintf(fp,"\n"); |
|
4249 } |
|
4250 |
|
4251 //------------------------------Attribute-------------------------------------- |
|
4252 Attribute::Attribute(char *id, char* val, int type) |
|
4253 : _ident(id), _val(val), _atype(type) { |
|
4254 } |
|
4255 Attribute::~Attribute() { |
|
4256 } |
|
4257 |
|
4258 int Attribute::int_val(ArchDesc &ad) { |
|
4259 // Make sure it is an integer constant: |
|
4260 int result = 0; |
|
4261 if (!_val || !ADLParser::is_int_token(_val, result)) { |
|
4262 ad.syntax_err(0, "Attribute %s must have an integer value: %s", |
|
4263 _ident, _val ? _val : ""); |
|
4264 } |
|
4265 return result; |
|
4266 } |
|
4267 |
|
4268 void Attribute::dump() { |
|
4269 output(stderr); |
|
4270 } // Debug printer |
|
4271 |
|
4272 // Write to output files |
|
4273 void Attribute::output(FILE *fp) { |
|
4274 fprintf(fp,"Attribute: %s %s\n", (_ident?_ident:""), (_val?_val:"")); |
|
4275 } |
|
4276 |
|
4277 //------------------------------FormatRule---------------------------------- |
|
4278 FormatRule::FormatRule(char *temp) |
|
4279 : _temp(temp) { |
|
4280 } |
|
4281 FormatRule::~FormatRule() { |
|
4282 } |
|
4283 |
|
4284 void FormatRule::dump() { |
|
4285 output(stderr); |
|
4286 } |
|
4287 |
|
4288 // Write to output files |
|
4289 void FormatRule::output(FILE *fp) { |
|
4290 fprintf(fp,"\nFormat Rule: \n%s", (_temp?_temp:"")); |
|
4291 fprintf(fp,"\n"); |
|
4292 } |