Fix a register assignment bug in typed array stores without SSE3 available.

src/mips/lithium-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1748 matching lines @@
   } else {
     ASSERT(input_rep.IsTagged());
     // Register allocator doesn't (yet) support allocation of double
     // temps. Reserve f22 explicitly.
     LClampTToUint8* result = new(zone()) LClampTToUint8(reg, FixedTemp(f22));
     return AssignEnvironment(DefineAsRegister(result));
   }
 }
 
 
-LInstruction* LChunkBuilder::DoToInt32(HToInt32* instr) {
-  HValue* value = instr->value();
-  Representation input_rep = value->representation();
-  LOperand* reg = UseRegister(value);
-  if (input_rep.IsDouble()) {
-    LOperand* temp1 = TempRegister();
-    LOperand* temp2 = TempRegister();
-    LDoubleToI* res = new(zone()) LDoubleToI(reg, temp1, temp2);
-    return AssignEnvironment(DefineAsRegister(res));
-  } else if (input_rep.IsInteger32()) {
-    // Canonicalization should already have removed the hydrogen instruction in
-    // this case, since it is a noop.
-    UNREACHABLE();
-    return NULL;
-  } else {
-    ASSERT(input_rep.IsTagged());
-    LOperand* temp1 = TempRegister();
-    LOperand* temp2 = TempRegister();
-    LOperand* temp3 = FixedTemp(f22);
-    LTaggedToI* res = new(zone()) LTaggedToI(reg, temp1, temp2, temp3);
-    return AssignEnvironment(DefineSameAsFirst(res));
-  }
-}
-
-
 LInstruction* LChunkBuilder::DoReturn(HReturn* instr) {
   return new(zone()) LReturn(UseFixed(instr->value(), v0));
 }
 
 
 LInstruction* LChunkBuilder::DoConstant(HConstant* instr) {
   Representation r = instr->representation();
   if (r.IsInteger32()) {
     return DefineAsRegister(new(zone()) LConstantI);
   } else if (r.IsDouble()) {
@@ skipping 526 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseRegister(instr->index());
   return DefineAsRegister(new LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal