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DummyUse if Representation::Tagged()+Type::Smi() to Representation::Smi()

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R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15778006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
verwaest@chromium.org 2013-05-24 12:30:24 +00:00
parent c417df74f4
commit eaec0b106f
3 changed files with 9 additions and 0 deletions
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3
src/arm/lithium-arm.cc
View File

@ -1908,6 +1908,9 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
} else if (to.IsSmi()) {
HValue* val = instr->value();
LOperand* value = UseRegister(val);
if (val->type().IsSmi()) {
return DefineSameAsFirst(new(zone()) LDummyUse(value));
}
return AssignEnvironment(
DefineSameAsFirst(new(zone()) LCheckSmiAndReturn(value)));
} else {

3
src/ia32/lithium-ia32.cc
View File

@ -1940,6 +1940,9 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
} else if (to.IsSmi()) {
HValue* val = instr->value();
LOperand* value = UseRegister(val);
if (val->type().IsSmi()) {
return DefineSameAsFirst(new(zone()) LDummyUse(value));
}
return AssignEnvironment(
DefineSameAsFirst(new(zone()) LCheckSmiAndReturn(value)));
} else {

3
src/x64/lithium-x64.cc
View File

@ -1836,6 +1836,9 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
} else if (to.IsSmi()) {
HValue* val = instr->value();
LOperand* value = UseRegister(val);
if (val->type().IsSmi()) {
return DefineSameAsFirst(new(zone()) LDummyUse(value));
}
return AssignEnvironment(
DefineSameAsFirst(new(zone()) LCheckSmiAndReturn(value)));
} else {