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Unified Diff: src/mips/builtins-mips.cc

Issue 16407004: MIPS: Adapt hydrogen-based Array constructor to also support InternalArray and function call versio… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 6 months ago
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Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 973b1bb0bed079bdcbdf5e9fe1991fab84b69bfa..611c74f7f8a483fe80ee159e297f2ab32134a6f0 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -498,15 +498,20 @@ void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) {
// Run the native code for the InternalArray function called as a normal
// function.
- ArrayNativeCode(masm, &generic_array_code);
-
- // Jump to the generic array code if the specialized code cannot handle the
- // construction.
- __ bind(&generic_array_code);
-
- Handle<Code> array_code =
- masm->isolate()->builtins()->InternalArrayCodeGeneric();
- __ Jump(array_code, RelocInfo::CODE_TARGET);
+ if (FLAG_optimize_constructed_arrays) {
+ // Tail call a stub.
+ InternalArrayConstructorStub stub(masm->isolate());
+ __ TailCallStub(&stub);
+ } else {
+ ArrayNativeCode(masm, &generic_array_code);
+
+ // Jump to the generic array code if the specialized code cannot handle the
+ // construction.
+ __ bind(&generic_array_code);
+ Handle<Code> array_code =
+ masm->isolate()->builtins()->InternalArrayCodeGeneric();
+ __ Jump(array_code, RelocInfo::CODE_TARGET);
+ }
}
@@ -533,15 +538,24 @@ void Builtins::Generate_ArrayCode(MacroAssembler* masm) {
}
// Run the native code for the Array function called as a normal function.
- ArrayNativeCode(masm, &generic_array_code);
-
- // Jump to the generic array code if the specialized code cannot handle
- // the construction.
- __ bind(&generic_array_code);
-
- Handle<Code> array_code =
- masm->isolate()->builtins()->ArrayCodeGeneric();
- __ Jump(array_code, RelocInfo::CODE_TARGET);
+ if (FLAG_optimize_constructed_arrays) {
+ // Tail call a stub.
+ Handle<Object> undefined_sentinel(
+ masm->isolate()->heap()->undefined_value(),
+ masm->isolate());
+ __ li(a2, Operand(undefined_sentinel));
+ ArrayConstructorStub stub(masm->isolate());
+ __ TailCallStub(&stub);
+ } else {
+ ArrayNativeCode(masm, &generic_array_code);
+
+ // Jump to the generic array code if the specialized code cannot handle
+ // the construction.
+ __ bind(&generic_array_code);
+ Handle<Code> array_code =
+ masm->isolate()->builtins()->ArrayCodeGeneric();
+ __ Jump(array_code, RelocInfo::CODE_TARGET);
+ }
}
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