MIPS: HArgument instructions currently require a frame. In Lithium we can...

MIPS: HArgument instructions currently require a frame. In Lithium we can ensure a frame is created for these instructions via a compile info flag.

Port r14339 (7d544be1)

BUG=

Review URL: https://codereview.chromium.org/14367003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14344 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/lithium-codegen-mips.h

@@ -82,7 +82,8 @@ class LCodeGen BASE_EMBEDDED {
   bool NeedsEagerFrame() const {
     return GetStackSlotCount() > 0 ||
         info()->is_non_deferred_calling() ||
-        !info()->IsStub();
+        !info()->IsStub() ||
+        info()->requires_frame();
   }
   bool NeedsDeferredFrame() const {
     return !NeedsEagerFrame() && info()->is_deferred_calling();

src/mips/lithium-mips.cc

@@ -988,12 +988,14 @@ LInstruction* LChunkBuilder::DoCompareMap(HCompareMap* instr) {
 
 
 LInstruction* LChunkBuilder::DoArgumentsLength(HArgumentsLength* length) {
+  info()->MarkAsRequiresFrame();
   return DefineAsRegister(
       new(zone()) LArgumentsLength(UseRegister(length->value())));
 }
 
 
 LInstruction* LChunkBuilder::DoArgumentsElements(HArgumentsElements* elems) {
+  info()->MarkAsRequiresFrame();
   return DefineAsRegister(new(zone()) LArgumentsElements);
 }
 
@@ -2331,6 +2333,7 @@ LInstruction* LChunkBuilder::DoArgumentsObject(HArgumentsObject* instr) {
 
 
 LInstruction* LChunkBuilder::DoAccessArgumentsAt(HAccessArgumentsAt* instr) {
+  info()->MarkAsRequiresFrame();
   LOperand* args = UseRegister(instr->arguments());
   LOperand* length = UseTempRegister(instr->length());
   LOperand* index = UseRegister(instr->index());