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X87: Implement inline %_IsJSProxy() for full codegen and Hydrogen.

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port r24636.

original commit message:

  Implement inline %_IsJSProxy() for full codegen and Hydrogen
  Saving a runtime call for many builtin functions.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/657273002

Patch from Chunyang Dai <chunyang.dai@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
weiliang.lin@intel.com 2014-10-16 06:24:47 +00:00
parent ae7161e4cb
commit ef6ffa2a01
1 changed files with 25 additions and 0 deletions
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25
src/x87/full-codegen-x87.cc
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@ -3325,6 +3325,31 @@ void FullCodeGenerator::EmitIsRegExp(CallRuntime* expr) {
}
void FullCodeGenerator::EmitIsJSProxy(CallRuntime* expr) {
ZoneList<Expression*>* args = expr->arguments();
DCHECK(args->length() == 1);
VisitForAccumulatorValue(args->at(0));
Label materialize_true, materialize_false;
Label* if_true = NULL;
Label* if_false = NULL;
Label* fall_through = NULL;
context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
&if_false, &fall_through);
__ JumpIfSmi(eax, if_false);
Register map = ebx;
__ mov(map, FieldOperand(eax, HeapObject::kMapOffset));
__ CmpInstanceType(map, FIRST_JS_PROXY_TYPE);
__ j(less, if_false);
__ CmpInstanceType(map, LAST_JS_PROXY_TYPE);
PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
Split(less_equal, if_true, if_false, fall_through);
context()->Plug(if_true, if_false);
}
void FullCodeGenerator::EmitIsConstructCall(CallRuntime* expr) {
DCHECK(expr->arguments()->length() == 0);