diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/hotspot/cpu/ppc/abstractInterpreter_ppc.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/hotspot/cpu/ppc/abstractInterpreter_ppc.cpp Tue Sep 12 19:03:39 2017 +0200 @@ -0,0 +1,149 @@ +/* + * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2015 SAP SE. 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. + * + */ + +#include "precompiled.hpp" +#include "interpreter/interpreter.hpp" +#include "oops/constMethod.hpp" +#include "oops/method.hpp" +#include "runtime/frame.inline.hpp" +#include "utilities/debug.hpp" +#include "utilities/macros.hpp" + +int AbstractInterpreter::BasicType_as_index(BasicType type) { + int i = 0; + switch (type) { + case T_BOOLEAN: i = 0; break; + case T_CHAR : i = 1; break; + case T_BYTE : i = 2; break; + case T_SHORT : i = 3; break; + case T_INT : i = 4; break; + case T_LONG : i = 5; break; + case T_VOID : i = 6; break; + case T_FLOAT : i = 7; break; + case T_DOUBLE : i = 8; break; + case T_OBJECT : i = 9; break; + case T_ARRAY : i = 9; break; + default : ShouldNotReachHere(); + } + assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds"); + return i; +} + +// How much stack a method activation needs in stack slots. +// We must calc this exactly like in generate_fixed_frame. +// Note: This returns the conservative size assuming maximum alignment. +int AbstractInterpreter::size_top_interpreter_activation(Method* method) { + const int max_alignment_size = 2; + const int abi_scratch = frame::abi_reg_args_size; + return method->max_locals() + method->max_stack() + + frame::interpreter_frame_monitor_size() + max_alignment_size + abi_scratch; +} + +// Returns number of stackElementWords needed for the interpreter frame with the +// given sections. +// This overestimates the stack by one slot in case of alignments. +int AbstractInterpreter::size_activation(int max_stack, + int temps, + int extra_args, + int monitors, + int callee_params, + int callee_locals, + bool is_top_frame) { + // Note: This calculation must exactly parallel the frame setup + // in TemplateInterpreterGenerator::generate_fixed_frame. + assert(Interpreter::stackElementWords == 1, "sanity"); + const int max_alignment_space = StackAlignmentInBytes / Interpreter::stackElementSize; + const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) : + (frame::abi_minframe_size / Interpreter::stackElementSize); + const int size = + max_stack + + (callee_locals - callee_params) + + monitors * frame::interpreter_frame_monitor_size() + + max_alignment_space + + abi_scratch + + frame::ijava_state_size / Interpreter::stackElementSize; + + // Fixed size of an interpreter frame, align to 16-byte. + return (size & -2); +} + +// Fills a sceletal interpreter frame generated during deoptimizations. +// +// Parameters: +// +// interpreter_frame != NULL: +// set up the method, locals, and monitors. +// The frame interpreter_frame, if not NULL, is guaranteed to be the +// right size, as determined by a previous call to this method. +// It is also guaranteed to be walkable even though it is in a skeletal state +// +// is_top_frame == true: +// We're processing the *oldest* interpreter frame! +// +// pop_frame_extra_args: +// If this is != 0 we are returning to a deoptimized frame by popping +// off the callee frame. We want to re-execute the call that called the +// callee interpreted, but since the return to the interpreter would pop +// the arguments off advance the esp by dummy popframe_extra_args slots. +// Popping off those will establish the stack layout as it was before the call. +// +void AbstractInterpreter::layout_activation(Method* method, + int tempcount, + int popframe_extra_args, + int moncount, + int caller_actual_parameters, + int callee_param_count, + int callee_locals_count, + frame* caller, + frame* interpreter_frame, + bool is_top_frame, + bool is_bottom_frame) { + + const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) : + (frame::abi_minframe_size / Interpreter::stackElementSize); + + intptr_t* locals_base = (caller->is_interpreted_frame()) ? + caller->interpreter_frame_esp() + caller_actual_parameters : + caller->sp() + method->max_locals() - 1 + (frame::abi_minframe_size / Interpreter::stackElementSize); + + intptr_t* monitor_base = caller->sp() - frame::ijava_state_size / Interpreter::stackElementSize; + intptr_t* monitor = monitor_base - (moncount * frame::interpreter_frame_monitor_size()); + intptr_t* esp_base = monitor - 1; + intptr_t* esp = esp_base - tempcount - popframe_extra_args; + intptr_t* sp = (intptr_t *) (((intptr_t) (esp_base - callee_locals_count + callee_param_count - method->max_stack()- abi_scratch)) & -StackAlignmentInBytes); + intptr_t* sender_sp = caller->sp() + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize; + intptr_t* top_frame_sp = is_top_frame ? sp : sp + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize; + + interpreter_frame->interpreter_frame_set_method(method); + interpreter_frame->interpreter_frame_set_mirror(method->method_holder()->java_mirror()); + interpreter_frame->interpreter_frame_set_locals(locals_base); + interpreter_frame->interpreter_frame_set_cpcache(method->constants()->cache()); + interpreter_frame->interpreter_frame_set_esp(esp); + interpreter_frame->interpreter_frame_set_monitor_end((BasicObjectLock *)monitor); + interpreter_frame->interpreter_frame_set_top_frame_sp(top_frame_sp); + if (!is_bottom_frame) { + interpreter_frame->interpreter_frame_set_sender_sp(sender_sp); + } +}