AuroraMiddleware/v8
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Remove kOsrCompileFailed bailout.

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R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1105133002

Cr-Commit-Position: refs/heads/master@{#28083}
This commit is contained in:
titzer 2015-04-27 07:24:49 -07:00 committed by Commit bot
parent da66e720a3
commit 44350b3d49
5 changed files with 9 additions and 21 deletions
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1
src/bailout-reason.h
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@ -323,7 +323,6 @@ namespace internal {
"Wrong address or value passed to RecordWrite") \
V(kShouldNotDirectlyEnterOsrFunction, \
"Should not directly enter OSR-compiled function") \
V(kOsrCompileFailed, "OSR compilation failed") \
V(kYield, "Yield")

9
src/compiler.cc
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@ -357,7 +357,7 @@ OptimizedCompileJob::Status OptimizedCompileJob::CreateGraph() {
return AbortOptimization(kHydrogenFilter);
}
// Crankshaft requires a version of fullcode with deoptimization support.
// Optimization requires a version of fullcode with deoptimization support.
// Recompile the unoptimized version of the code if the current version
// doesn't have deoptimization support already.
// Otherwise, if we are gathering compilation time and space statistics
@ -378,9 +378,10 @@ OptimizedCompileJob::Status OptimizedCompileJob::CreateGraph() {
DCHECK(info()->shared_info()->has_deoptimization_support());
// Check the whitelist for TurboFan.
if ((FLAG_turbo_asm && info()->shared_info()->asm_function()) ||
info()->closure()->PassesFilter(FLAG_turbo_filter)) {
// Check the enabling conditions for TurboFan.
if (((FLAG_turbo_asm && info()->shared_info()->asm_function()) ||
info()->closure()->PassesFilter(FLAG_turbo_filter)) &&
(FLAG_turbo_osr || !info()->is_osr())) {
if (FLAG_trace_opt) {
OFStream os(stdout);
os << "[compiling method " << Brief(*info()->closure())

6
src/compiler/osr.cc
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@ -285,7 +285,7 @@ static void TransferOsrValueTypesFromLoopPhis(Zone* zone, Node* osr_loop_entry,
}
bool OsrHelper::Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
void OsrHelper::Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
Zone* tmp_zone) {
Graph* graph = jsgraph->graph();
Node* osr_normal_entry = nullptr;
@ -303,7 +303,7 @@ bool OsrHelper::Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
if (osr_loop_entry == nullptr) {
// No OSR entry found, do nothing.
CHECK(osr_normal_entry);
return true;
return;
}
for (Node* use : osr_loop_entry->uses()) {
@ -345,8 +345,6 @@ bool OsrHelper::Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
// Run the normal control reduction, which naturally trims away the dead
// parts of the graph.
ControlReducer::ReduceGraph(tmp_zone, jsgraph, common);
return true;
}

3
src/compiler/osr.h
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@ -99,8 +99,7 @@ class OsrHelper {
// Deconstructs the artificial {OsrNormalEntry} and rewrites the graph so
// that only the path corresponding to {OsrLoopEntry} remains.
// Return {false} if the OSR deconstruction failed somehow.
bool Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
void Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
Zone* tmp_zone);
// Prepares the frame w.r.t. OSR.

9
src/compiler/pipeline.cc
View File

@ -524,9 +524,7 @@ struct OsrDeconstructionPhase {
SourcePositionTable::Scope pos(data->source_positions(),
SourcePosition::Unknown());
OsrHelper osr_helper(data->info());
bool success =
osr_helper.Deconstruct(data->jsgraph(), data->common(), temp_zone);
if (!success) data->info()->RetryOptimization(kOsrCompileFailed);
}
};
@ -919,12 +917,6 @@ void Pipeline::RunPrintAndVerify(const char* phase, bool untyped) {
Handle<Code> Pipeline::GenerateCode() {
if (info()->is_osr() && !FLAG_turbo_osr) {
// TODO(turbofan): remove this flag and always handle OSR
info()->RetryOptimization(kOsrCompileFailed);
return Handle<Code>::null();
}
// TODO(mstarzinger): This is just a temporary hack to make TurboFan work,
// the correct solution is to restore the context register after invoking
// builtins from full-codegen.
@ -1046,7 +1038,6 @@ Handle<Code> Pipeline::GenerateCode() {
if (info()->is_osr()) {
Run<OsrDeconstructionPhase>();
if (info()->bailout_reason() != kNoReason) return Handle<Code>::null();
RunPrintAndVerify("OSR deconstruction");
}