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Use AssumeRepresentation when the representation is known and will not change.

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R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14793014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14611 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
ulan@chromium.org 2013-05-10 09:31:28 +00:00
parent 36910718fe
commit cc1053379d
1 changed files with 13 additions and 13 deletions
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26
src/hydrogen.cc
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@ -723,7 +723,7 @@ HInstruction* HGraphBuilder::IfBuilder::IfCompare(
new(zone()) HCompareIDAndBranch(left, right, token);
compare->set_observed_input_representation(input_representation,
input_representation);
compare->ChangeRepresentation(input_representation);
compare->AssumeRepresentation(input_representation);
AddCompare(compare);
return compare;
}
@ -910,7 +910,7 @@ HValue* HGraphBuilder::LoopBuilder::BeginBody(
phi_ = new(zone()) HPhi(env->values()->length(), zone());
header_block_->AddPhi(phi_);
phi_->AddInput(initial);
phi_->ChangeRepresentation(Representation::Integer32());
phi_->AssumeRepresentation(Representation::Integer32());
env->Push(initial);
builder_->current_block()->GotoNoSimulate(header_block_);
ASSERT(builder_->SafeToAddPhiInNoSideEffectsScope());
@ -927,7 +927,7 @@ HValue* HGraphBuilder::LoopBuilder::BeginBody(
new(zone()) HCompareIDAndBranch(phi_, terminating, token);
compare->set_observed_input_representation(input_representation,
input_representation);
compare->ChangeRepresentation(input_representation);
compare->AssumeRepresentation(input_representation);
compare->SetSuccessorAt(0, body_block_);
compare->SetSuccessorAt(1, exit_block_);
builder_->current_block()->Finish(compare);
@ -941,7 +941,7 @@ HValue* HGraphBuilder::LoopBuilder::BeginBody(
increment_ = HSub::New(zone(), context_, phi_, one);
}
increment_->ClearFlag(HValue::kCanOverflow);
increment_->ChangeRepresentation(Representation::Integer32());
increment_->AssumeRepresentation(Representation::Integer32());
builder_->AddInstruction(increment_);
return increment_;
} else {
@ -961,7 +961,7 @@ void HGraphBuilder::LoopBuilder::EndBody() {
increment_ = HSub::New(zone(), context_, phi_, one);
}
increment_->ClearFlag(HValue::kCanOverflow);
increment_->ChangeRepresentation(Representation::Integer32());
increment_->AssumeRepresentation(Representation::Integer32());
builder_->AddInstruction(increment_);
}
@ -1198,7 +1198,7 @@ HValue* HGraphBuilder::BuildCheckForCapacityGrow(HValue* object,
if (is_js_array) {
HValue* new_length = AddInstruction(
HAdd::New(zone, context, length, graph_->GetConstant1()));
new_length->ChangeRepresentation(Representation::Integer32());
new_length->AssumeRepresentation(Representation::Integer32());
new_length->ClearFlag(HValue::kCanOverflow);
Factory* factory = isolate()->factory();
@ -1384,7 +1384,7 @@ HValue* HGraphBuilder::BuildAllocateElements(HValue* context,
AddInstruction(elements_size_value);
HValue* mul = AddInstruction(
HMul::New(zone, context, capacity, elements_size_value));
mul->ChangeRepresentation(Representation::Integer32());
mul->AssumeRepresentation(Representation::Integer32());
mul->ClearFlag(HValue::kCanOverflow);
HConstant* header_size =
@ -1392,7 +1392,7 @@ HValue* HGraphBuilder::BuildAllocateElements(HValue* context,
AddInstruction(header_size);
HValue* total_size = AddInstruction(
HAdd::New(zone, context, mul, header_size));
total_size->ChangeRepresentation(Representation::Integer32());
total_size->AssumeRepresentation(Representation::Integer32());
total_size->ClearFlag(HValue::kCanOverflow);
HAllocate::Flags flags = HAllocate::DefaultFlags(kind);
@ -1548,12 +1548,12 @@ HValue* HGraphBuilder::BuildNewElementsCapacity(HValue* context,
HValue* half_old_capacity =
AddInstruction(HShr::New(zone, context, old_capacity,
graph_->GetConstant1()));
half_old_capacity->ChangeRepresentation(Representation::Integer32());
half_old_capacity->AssumeRepresentation(Representation::Integer32());
half_old_capacity->ClearFlag(HValue::kCanOverflow);
HValue* new_capacity = AddInstruction(
HAdd::New(zone, context, half_old_capacity, old_capacity));
new_capacity->ChangeRepresentation(Representation::Integer32());
new_capacity->AssumeRepresentation(Representation::Integer32());
new_capacity->ClearFlag(HValue::kCanOverflow);
HValue* min_growth =
@ -1561,7 +1561,7 @@ HValue* HGraphBuilder::BuildNewElementsCapacity(HValue* context,
new_capacity = AddInstruction(
HAdd::New(zone, context, new_capacity, min_growth));
new_capacity->ChangeRepresentation(Representation::Integer32());
new_capacity->AssumeRepresentation(Representation::Integer32());
new_capacity->ClearFlag(HValue::kCanOverflow);
return new_capacity;
@ -1941,7 +1941,7 @@ HValue* HGraphBuilder::JSArrayBuilder::EstablishAllocationSize(
AddInstruction(elements_size_value);
HInstruction* mul = HMul::New(zone(), context, length_node,
elements_size_value);
mul->ChangeRepresentation(Representation::Integer32());
mul->AssumeRepresentation(Representation::Integer32());
mul->ClearFlag(HValue::kCanOverflow);
AddInstruction(mul);
@ -1949,7 +1949,7 @@ HValue* HGraphBuilder::JSArrayBuilder::EstablishAllocationSize(
Representation::Integer32());
AddInstruction(base);
HInstruction* total_size = HAdd::New(zone(), context, base, mul);
total_size->ChangeRepresentation(Representation::Integer32());
total_size->AssumeRepresentation(Representation::Integer32());
total_size->ClearFlag(HValue::kCanOverflow);
AddInstruction(total_size);
return total_size;