/*

 * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef SHARE_VM_COMPILER_COMPILERDIRECTIVES_HPP

#define SHARE_VM_COMPILER_COMPILERDIRECTIVES_HPP

#include "ci/ciMetadata.hpp"

#include "ci/ciMethod.hpp"

#include "compiler/methodMatcher.hpp"

#include "compiler/compilerOracle.hpp"

#include "utilities/exceptions.hpp"

  //      Directives flag name,    type, default value, compile command name

  #define compilerdirectives_common_flags(cflags) \

    cflags(Enable,                  bool, false, X) \

    cflags(Exclude,                 bool, false, X) \

    cflags(BreakAtExecute,          bool, false, X) \

    cflags(BreakAtCompile,          bool, false, X) \

    cflags(Log,                     bool, LogCompilation, X) \

    cflags(PrintAssembly,           bool, PrintAssembly, PrintAssembly) \

    cflags(PrintInlining,           bool, PrintInlining, PrintInlining) \

    cflags(PrintNMethods,           bool, PrintNMethods, PrintNMethods) \

    cflags(BackgroundCompilation,   bool, BackgroundCompilation, BackgroundCompilation) \

    cflags(ReplayInline,            bool, false, ReplayInline) \

    cflags(DumpReplay,              bool, false, DumpReplay) \

    cflags(DumpInline,              bool, false, DumpInline) \

    cflags(CompilerDirectivesIgnoreCompileCommands, bool, CompilerDirectivesIgnoreCompileCommands, X) \

    cflags(DisableIntrinsic,        ccstrlist, DisableIntrinsic, DisableIntrinsic)

#ifdef COMPILER1

  #define compilerdirectives_c1_flags(cflags)

#else

  #define compilerdirectives_c1_flags(cflags)

#endif

#ifdef COMPILER2

  #define compilerdirectives_c2_flags(cflags) \

    cflags(BlockLayoutByFrequency,  bool, BlockLayoutByFrequency,  BlockLayoutByFrequency) \

    cflags(PrintOptoAssembly,       bool, PrintOptoAssembly, PrintOptoAssembly) \

    cflags(PrintIntrinsics,         bool, PrintIntrinsics, PrintIntrinsics) \

NOT_PRODUCT(cflags(TraceOptoPipelining, bool, TraceOptoPipelining, TraceOptoPipelining)) \

NOT_PRODUCT(cflags(TraceOptoOutput,     bool, TraceOptoOutput, TraceOptoOutput)) \

    cflags(TraceSpilling,           bool, TraceSpilling, TraceSpilling) \

    cflags(Vectorize,               bool, false, Vectorize) \

    cflags(VectorizeDebug,          uintx, 0, VectorizeDebug) \

    cflags(CloneMapDebug,           bool, false, CloneMapDebug) \

    cflags(IGVPrintLevel,           intx, PrintIdealGraphLevel, IGVPrintLevel) \

    cflags(MaxNodeLimit,            intx, MaxNodeLimit, MaxNodeLimit) \

ZGC_ONLY(cflags(ZOptimizeLoadBarriers, bool, ZOptimizeLoadBarriers, ZOptimizeLoadBarriers))

#else

  #define compilerdirectives_c2_flags(cflags)

#endif

class CompilerDirectives;

class DirectiveSet;

class DirectivesStack : AllStatic {

private:

  static CompilerDirectives* _top;

  static CompilerDirectives* _bottom;

  static int _depth;

  static void pop_inner(); // no lock version of pop

public:

  static void init();

  static DirectiveSet* getMatchingDirective(const methodHandle& mh, AbstractCompiler* comp);

  static DirectiveSet* getDefaultDirective(AbstractCompiler* comp);

  static void push(CompilerDirectives* directive);

  static void pop(int count);

  static bool check_capacity(int request_size, outputStream* st);

  static void clear();

  static void print(outputStream* st);

  static void release(DirectiveSet* set);

  static void release(CompilerDirectives* dir);

};

class DirectiveSet : public CHeapObj<mtCompiler> {

private:

  InlineMatcher* _inlinematchers;

  CompilerDirectives* _directive;

public:

  DirectiveSet(CompilerDirectives* directive);

  ~DirectiveSet();

  CompilerDirectives* directive();

  bool parse_and_add_inline(char* str, const char*& error_msg);

  void append_inline(InlineMatcher* m);

  bool should_inline(ciMethod* inlinee);

  bool should_not_inline(ciMethod* inlinee);

  void print_inline(outputStream* st);

  DirectiveSet* compilecommand_compatibility_init(const methodHandle& method);

  bool is_exclusive_copy() { return _directive == NULL; }

  bool matches_inline(const methodHandle& method, int inline_action);

  static DirectiveSet* clone(DirectiveSet const* src);

  bool is_intrinsic_disabled(const methodHandle& method);

  static ccstrlist canonicalize_disableintrinsic(ccstrlist option_value);

  void finalize(outputStream* st);

  typedef enum {

#define enum_of_flags(name, type, dvalue, cc_flag) name##Index,

    compilerdirectives_common_flags(enum_of_flags)

    compilerdirectives_c2_flags(enum_of_flags)

    compilerdirectives_c1_flags(enum_of_flags)

    number_of_flags

  } flags;

  bool _modified[number_of_flags]; // Records what options where set by a directive

#define flag_store_definition(name, type, dvalue, cc_flag) type name##Option;

  compilerdirectives_common_flags(flag_store_definition)

  compilerdirectives_c2_flags(flag_store_definition)

  compilerdirectives_c1_flags(flag_store_definition)

// Casting to get the same function signature for all setters. Used from parser.

#define set_function_definition(name, type, dvalue, cc_flag) void set_##name(void* value) { type val = *(type*)value; name##Option = val; _modified[name##Index] = true; }

  compilerdirectives_common_flags(set_function_definition)

  compilerdirectives_c2_flags(set_function_definition)

  compilerdirectives_c1_flags(set_function_definition)

  void print_intx(outputStream* st, ccstr n, intx v, bool mod) { if (mod) { st->print("%s:" INTX_FORMAT " ", n, v); } }

  void print_uintx(outputStream* st, ccstr n, intx v, bool mod) { if (mod) { st->print("%s:" UINTX_FORMAT " ", n, v); } }

  void print_bool(outputStream* st, ccstr n, bool v, bool mod) { if (mod) { st->print("%s:%s ", n, v ? "true" : "false"); } }

  void print_double(outputStream* st, ccstr n, double v, bool mod) { if (mod) { st->print("%s:%f ", n, v); } }

  void print_ccstr(outputStream* st, ccstr n, ccstr v, bool mod) { if (mod) { st->print("%s:%s ", n, v); } }

  void print_ccstrlist(outputStream* st, ccstr n, ccstr v, bool mod) { print_ccstr(st, n, v, mod); }

void print(outputStream* st) {

    print_inline(st);

    st->print("  ");

#define print_function_definition(name, type, dvalue, cc_flag) print_##type(st, #name, this->name##Option, true);

    compilerdirectives_common_flags(print_function_definition)

    compilerdirectives_c2_flags(print_function_definition)

    compilerdirectives_c1_flags(print_function_definition)

    st->cr();

  }

};

class CompilerDirectives : public CHeapObj<mtCompiler> {

private:

  CompilerDirectives* _next;

  BasicMatcher* _match;

  int _ref_count;

public:

  CompilerDirectives();

  ~CompilerDirectives();

  CompilerDirectives* next();

  void set_next(CompilerDirectives* next) {_next = next; }

  bool match(const methodHandle& method);

  BasicMatcher* match() { return _match; }

  bool add_match(char* str, const char*& error_msg);

  DirectiveSet* get_for(AbstractCompiler *comp);

  void print(outputStream* st);

  bool is_default_directive() { return _next == NULL; }

  void finalize(outputStream* st);

  void inc_refcount();

  void dec_refcount();

  int refcount();

  DirectiveSet* _c1_store;

  DirectiveSet* _c2_store;

};

#endif // SHARE_VM_COMPILER_COMPILERDIRECTIVES_HPP