MIPS: Added CallInterfaceDescriptors to all code stubs.

src/mips/lithium-codegen-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.7
 // 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 3836 matching lines @@
   __ add_d(result, input, kDoubleRegZero);
   __ sqrt_d(result, result);
   __ bind(&done);
 }
 
 
 void LCodeGen::DoPower(LPower* instr) {
   Representation exponent_type = instr->hydrogen()->right()->representation();
   // Having marked this as a call, we can use any registers.
   // Just make sure that the input/output registers are the expected ones.
+  Register tagged_exponent = MathPowTaggedDescriptor::exponent();
   DCHECK(!instr->right()->IsDoubleRegister() ||
          ToDoubleRegister(instr->right()).is(f4));
   DCHECK(!instr->right()->IsRegister() ||
-         ToRegister(instr->right()).is(a2));
+         ToRegister(instr->right()).is(tagged_exponent));
   DCHECK(ToDoubleRegister(instr->left()).is(f2));
   DCHECK(ToDoubleRegister(instr->result()).is(f0));
 
   if (exponent_type.IsSmi()) {
     MathPowStub stub(isolate(), MathPowStub::TAGGED);
     __ CallStub(&stub);
   } else if (exponent_type.IsTagged()) {
     Label no_deopt;
-    __ JumpIfSmi(a2, &no_deopt);
-    __ lw(t3, FieldMemOperand(a2, HeapObject::kMapOffset));
+    __ JumpIfSmi(tagged_exponent, &no_deopt);
+    DCHECK(!t3.is(tagged_exponent));
+    __ lw(t3, FieldMemOperand(tagged_exponent, HeapObject::kMapOffset));
     __ LoadRoot(at, Heap::kHeapNumberMapRootIndex);
     DeoptimizeIf(ne, instr->environment(), t3, Operand(at));
     __ bind(&no_deopt);
     MathPowStub stub(isolate(), MathPowStub::TAGGED);
     __ CallStub(&stub);
   } else if (exponent_type.IsInteger32()) {
     MathPowStub stub(isolate(), MathPowStub::INTEGER);
     __ CallStub(&stub);
   } else {
     DCHECK(exponent_type.IsDouble());
@@ skipping 2045 matching lines @@
   __ li(at, scope_info);
   __ Push(at, ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal