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Unified Diff: src/mips/full-codegen-mips.cc

Issue 69953005: MIPS: Add initial hydrogenized NewStringAddStub. (Closed) Base URL: https://github.com/v8/v8.git@gbl
Patch Set: Created 7 years, 1 month ago
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Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index caa7352eae8bb60b771e6c475ecb2727d568f8b7..5ee6bdfe27bcaa44adee4bbd700906e1ca8ba0de 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -3740,11 +3740,20 @@ void FullCodeGenerator::EmitStringCharAt(CallRuntime* expr) {
void FullCodeGenerator::EmitStringAdd(CallRuntime* expr) {
ZoneList<Expression*>* args = expr->arguments();
ASSERT_EQ(2, args->length());
- VisitForStackValue(args->at(0));
- VisitForStackValue(args->at(1));
+ if (FLAG_new_string_add) {
+ VisitForStackValue(args->at(0));
+ VisitForAccumulatorValue(args->at(1));
- StringAddStub stub(STRING_ADD_CHECK_BOTH);
- __ CallStub(&stub);
+ __ pop(a1);
+ NewStringAddStub stub(STRING_ADD_CHECK_BOTH, NOT_TENURED);
+ __ CallStub(&stub);
+ } else {
+ VisitForStackValue(args->at(0));
+ VisitForStackValue(args->at(1));
+
+ StringAddStub stub(STRING_ADD_CHECK_BOTH);
+ __ CallStub(&stub);
+ }
context()->Plug(v0);
}
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