MIPS: Omit smi-check for write-barrier unless tagged.

Port r14767 (40dd85ec)

BUG=

Review URL: https://codereview.chromium.org/15745021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14783 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/stub-cache-mips.cc

@@ -571,6 +571,8 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   index -= object->map()->inobject_properties();
 
   // TODO(verwaest): Share this code as a code stub.
+  SmiCheck smi_check = representation.IsTagged()
+      ? INLINE_SMI_CHECK : OMIT_SMI_CHECK;
   if (index < 0) {
     // Set the property straight into the object.
     int offset = object->map()->instance_size() + (index * kPointerSize);
@@ -596,7 +598,9 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,
                           name_reg,
                           scratch1,
                           kRAHasNotBeenSaved,
-                          kDontSaveFPRegs);
+                          kDontSaveFPRegs,
+                          EMIT_REMEMBERED_SET,
+                          smi_check);
     }
   } else {
     // Write to the properties array.
@@ -626,7 +630,9 @@ void StubCompiler::GenerateStoreTransition(MacroAssembler* masm,
                           name_reg,
                           receiver_reg,
                           kRAHasNotBeenSaved,
-                          kDontSaveFPRegs);
+                          kDontSaveFPRegs,
+                          EMIT_REMEMBERED_SET,
+                          smi_check);
     }
   }
 
@@ -715,6 +721,8 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
   }
 
   // TODO(verwaest): Share this code as a code stub.
+  SmiCheck smi_check = representation.IsTagged()
+      ? INLINE_SMI_CHECK : OMIT_SMI_CHECK;
   if (index < 0) {
     // Set the property straight into the object.
     int offset = object->map()->instance_size() + (index * kPointerSize);
@@ -732,7 +740,9 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
                           name_reg,
                           scratch1,
                           kRAHasNotBeenSaved,
-                          kDontSaveFPRegs);
+                          kDontSaveFPRegs,
+                          EMIT_REMEMBERED_SET,
+                          smi_check);
     }
   } else {
     // Write to the properties array.
@@ -754,7 +764,9 @@ void StubCompiler::GenerateStoreField(MacroAssembler* masm,
                           name_reg,
                           receiver_reg,
                           kRAHasNotBeenSaved,
-                          kDontSaveFPRegs);
+                          kDontSaveFPRegs,
+                          EMIT_REMEMBERED_SET,
+                          smi_check);
     }
   }