MIPS: Fix --new-string-add feature.

This commit fixes the arguments of NewStringAdd stub in full-codegen.

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/96593005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 0407f01..35fbad0 100644 (file)
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -3734,6 +3734,7 @@ void FullCodeGenerator::EmitStringAdd(CallRuntime* expr) {
     VisitForAccumulatorValue(args->at(1));
 
     __ pop(a1);
+    __ mov(a0, result_register());  // NewStringAddStub requires args in a0, a1.
     NewStringAddStub stub(STRING_ADD_CHECK_BOTH, NOT_TENURED);
     __ CallStub(&stub);
   } else {