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Unified Diff: src/lithium-codegen.cc

Issue 1405363003: Move Hydrogen and Lithium to src/crankshaft/ (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 2 months ago
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Index: src/lithium-codegen.cc
diff --git a/src/lithium-codegen.cc b/src/lithium-codegen.cc
deleted file mode 100644
index 267df58ccd0ac3c68afde24228d18bc7aff237b3..0000000000000000000000000000000000000000
--- a/src/lithium-codegen.cc
+++ /dev/null
@@ -1,292 +0,0 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/lithium-codegen.h"
-
-#include <sstream>
-
-#if V8_TARGET_ARCH_IA32
-#include "src/ia32/lithium-ia32.h" // NOLINT
-#include "src/ia32/lithium-codegen-ia32.h" // NOLINT
-#elif V8_TARGET_ARCH_X64
-#include "src/x64/lithium-x64.h" // NOLINT
-#include "src/x64/lithium-codegen-x64.h" // NOLINT
-#elif V8_TARGET_ARCH_ARM
-#include "src/arm/lithium-arm.h" // NOLINT
-#include "src/arm/lithium-codegen-arm.h" // NOLINT
-#elif V8_TARGET_ARCH_ARM64
-#include "src/arm64/lithium-arm64.h" // NOLINT
-#include "src/arm64/lithium-codegen-arm64.h" // NOLINT
-#elif V8_TARGET_ARCH_MIPS
-#include "src/mips/lithium-mips.h" // NOLINT
-#include "src/mips/lithium-codegen-mips.h" // NOLINT
-#elif V8_TARGET_ARCH_MIPS64
-#include "src/mips64/lithium-mips64.h" // NOLINT
-#include "src/mips64/lithium-codegen-mips64.h" // NOLINT
-#elif V8_TARGET_ARCH_X87
-#include "src/x87/lithium-x87.h" // NOLINT
-#include "src/x87/lithium-codegen-x87.h" // NOLINT
-#elif V8_TARGET_ARCH_PPC
-#include "src/ppc/lithium-ppc.h" // NOLINT
-#include "src/ppc/lithium-codegen-ppc.h" // NOLINT
-#else
-#error Unsupported target architecture.
-#endif
-
-namespace v8 {
-namespace internal {
-
-
-HGraph* LCodeGenBase::graph() const {
- return chunk()->graph();
-}
-
-
-LCodeGenBase::LCodeGenBase(LChunk* chunk, MacroAssembler* assembler,
- CompilationInfo* info)
- : chunk_(static_cast<LPlatformChunk*>(chunk)),
- masm_(assembler),
- info_(info),
- zone_(info->zone()),
- status_(UNUSED),
- current_block_(-1),
- current_instruction_(-1),
- instructions_(chunk->instructions()),
- deoptimization_literals_(8, info->zone()),
- last_lazy_deopt_pc_(0) {}
-
-
-bool LCodeGenBase::GenerateBody() {
- DCHECK(is_generating());
- bool emit_instructions = true;
- LCodeGen* codegen = static_cast<LCodeGen*>(this);
- for (current_instruction_ = 0;
- !is_aborted() && current_instruction_ < instructions_->length();
- current_instruction_++) {
- LInstruction* instr = instructions_->at(current_instruction_);
-
- // Don't emit code for basic blocks with a replacement.
- if (instr->IsLabel()) {
- emit_instructions = !LLabel::cast(instr)->HasReplacement() &&
- (!FLAG_unreachable_code_elimination ||
- instr->hydrogen_value()->block()->IsReachable());
- if (FLAG_code_comments && !emit_instructions) {
- Comment(
- ";;; <@%d,#%d> -------------------- B%d (unreachable/replaced) "
- "--------------------",
- current_instruction_,
- instr->hydrogen_value()->id(),
- instr->hydrogen_value()->block()->block_id());
- }
- }
- if (!emit_instructions) continue;
-
- if (FLAG_code_comments && instr->HasInterestingComment(codegen)) {
- Comment(";;; <@%d,#%d> %s",
- current_instruction_,
- instr->hydrogen_value()->id(),
- instr->Mnemonic());
- }
-
- GenerateBodyInstructionPre(instr);
-
- HValue* value = instr->hydrogen_value();
- if (!value->position().IsUnknown()) {
- RecordAndWritePosition(
- chunk()->graph()->SourcePositionToScriptPosition(value->position()));
- }
-
- instr->CompileToNative(codegen);
-
- GenerateBodyInstructionPost(instr);
- }
- EnsureSpaceForLazyDeopt(Deoptimizer::patch_size());
- last_lazy_deopt_pc_ = masm()->pc_offset();
- return !is_aborted();
-}
-
-
-void LCodeGenBase::CheckEnvironmentUsage() {
-#ifdef DEBUG
- bool dead_block = false;
- for (int i = 0; i < instructions_->length(); i++) {
- LInstruction* instr = instructions_->at(i);
- HValue* hval = instr->hydrogen_value();
- if (instr->IsLabel()) dead_block = LLabel::cast(instr)->HasReplacement();
- if (dead_block || !hval->block()->IsReachable()) continue;
-
- HInstruction* hinstr = HInstruction::cast(hval);
- if (!hinstr->CanDeoptimize() && instr->HasEnvironment()) {
- V8_Fatal(__FILE__, __LINE__, "CanDeoptimize is wrong for %s (%s)",
- hinstr->Mnemonic(), instr->Mnemonic());
- }
-
- if (instr->HasEnvironment() && !instr->environment()->has_been_used()) {
- V8_Fatal(__FILE__, __LINE__, "unused environment for %s (%s)",
- hinstr->Mnemonic(), instr->Mnemonic());
- }
- }
-#endif
-}
-
-
-void LCodeGenBase::Comment(const char* format, ...) {
- if (!FLAG_code_comments) return;
- char buffer[4 * KB];
- StringBuilder builder(buffer, arraysize(buffer));
- va_list arguments;
- va_start(arguments, format);
- builder.AddFormattedList(format, arguments);
- va_end(arguments);
-
- // Copy the string before recording it in the assembler to avoid
- // issues when the stack allocated buffer goes out of scope.
- size_t length = builder.position();
- Vector<char> copy = Vector<char>::New(static_cast<int>(length) + 1);
- MemCopy(copy.start(), builder.Finalize(), copy.length());
- masm()->RecordComment(copy.start());
-}
-
-
-void LCodeGenBase::DeoptComment(const Deoptimizer::DeoptInfo& deopt_info) {
- masm()->RecordDeoptReason(deopt_info.deopt_reason, deopt_info.position);
-}
-
-
-int LCodeGenBase::GetNextEmittedBlock() const {
- for (int i = current_block_ + 1; i < graph()->blocks()->length(); ++i) {
- if (!graph()->blocks()->at(i)->IsReachable()) continue;
- if (!chunk_->GetLabel(i)->HasReplacement()) return i;
- }
- return -1;
-}
-
-
-void LCodeGenBase::Abort(BailoutReason reason) {
- info()->AbortOptimization(reason);
- status_ = ABORTED;
-}
-
-
-void LCodeGenBase::Retry(BailoutReason reason) {
- info()->RetryOptimization(reason);
- status_ = ABORTED;
-}
-
-
-void LCodeGenBase::AddDeprecationDependency(Handle<Map> map) {
- if (map->is_deprecated()) return Retry(kMapBecameDeprecated);
- chunk_->AddDeprecationDependency(map);
-}
-
-
-void LCodeGenBase::AddStabilityDependency(Handle<Map> map) {
- if (!map->is_stable()) return Retry(kMapBecameUnstable);
- chunk_->AddStabilityDependency(map);
-}
-
-
-int LCodeGenBase::DefineDeoptimizationLiteral(Handle<Object> literal) {
- int result = deoptimization_literals_.length();
- for (int i = 0; i < deoptimization_literals_.length(); ++i) {
- if (deoptimization_literals_[i].is_identical_to(literal)) return i;
- }
- deoptimization_literals_.Add(literal, zone());
- return result;
-}
-
-
-void LCodeGenBase::WriteTranslationFrame(LEnvironment* environment,
- Translation* translation) {
- int translation_size = environment->translation_size();
- // The output frame height does not include the parameters.
- int height = translation_size - environment->parameter_count();
-
- switch (environment->frame_type()) {
- case JS_FUNCTION: {
- int shared_id = DefineDeoptimizationLiteral(
- environment->entry() ? environment->entry()->shared()
- : info()->shared_info());
- translation->BeginJSFrame(environment->ast_id(), shared_id, height);
- if (info()->closure().is_identical_to(environment->closure())) {
- translation->StoreJSFrameFunction();
- } else {
- int closure_id = DefineDeoptimizationLiteral(environment->closure());
- translation->StoreLiteral(closure_id);
- }
- break;
- }
- case JS_CONSTRUCT: {
- int shared_id = DefineDeoptimizationLiteral(
- environment->entry() ? environment->entry()->shared()
- : info()->shared_info());
- translation->BeginConstructStubFrame(shared_id, translation_size);
- if (info()->closure().is_identical_to(environment->closure())) {
- translation->StoreJSFrameFunction();
- } else {
- int closure_id = DefineDeoptimizationLiteral(environment->closure());
- translation->StoreLiteral(closure_id);
- }
- break;
- }
- case JS_GETTER: {
- DCHECK(translation_size == 1);
- DCHECK(height == 0);
- int shared_id = DefineDeoptimizationLiteral(
- environment->entry() ? environment->entry()->shared()
- : info()->shared_info());
- translation->BeginGetterStubFrame(shared_id);
- if (info()->closure().is_identical_to(environment->closure())) {
- translation->StoreJSFrameFunction();
- } else {
- int closure_id = DefineDeoptimizationLiteral(environment->closure());
- translation->StoreLiteral(closure_id);
- }
- break;
- }
- case JS_SETTER: {
- DCHECK(translation_size == 2);
- DCHECK(height == 0);
- int shared_id = DefineDeoptimizationLiteral(
- environment->entry() ? environment->entry()->shared()
- : info()->shared_info());
- translation->BeginSetterStubFrame(shared_id);
- if (info()->closure().is_identical_to(environment->closure())) {
- translation->StoreJSFrameFunction();
- } else {
- int closure_id = DefineDeoptimizationLiteral(environment->closure());
- translation->StoreLiteral(closure_id);
- }
- break;
- }
- case ARGUMENTS_ADAPTOR: {
- int shared_id = DefineDeoptimizationLiteral(
- environment->entry() ? environment->entry()->shared()
- : info()->shared_info());
- translation->BeginArgumentsAdaptorFrame(shared_id, translation_size);
- if (info()->closure().is_identical_to(environment->closure())) {
- translation->StoreJSFrameFunction();
- } else {
- int closure_id = DefineDeoptimizationLiteral(environment->closure());
- translation->StoreLiteral(closure_id);
- }
- break;
- }
- case STUB:
- translation->BeginCompiledStubFrame(translation_size);
- break;
- }
-}
-
-
-Deoptimizer::DeoptInfo LCodeGenBase::MakeDeoptInfo(
- LInstruction* instr, Deoptimizer::DeoptReason deopt_reason) {
- Deoptimizer::DeoptInfo deopt_info(instr->hydrogen_value()->position(),
- instr->Mnemonic(), deopt_reason);
- HEnterInlined* enter_inlined = instr->environment()->entry();
- deopt_info.inlining_id = enter_inlined ? enter_inlined->inlining_id() : 0;
- return deopt_info;
-}
-} // namespace internal
-} // namespace v8
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