Remove the last remnants of the TranscendentalCache.

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 1183 matching lines @@
     case kMathSqrt: return DoMathSqrt(instr);
     case kMathPowHalf: return DoMathPowHalf(instr);
     default:
       UNREACHABLE();
       return NULL;
   }
 }
 
 
 LInstruction* LChunkBuilder::DoMathLog(HUnaryMathOperation* instr) {
-  LOperand* input = UseFixedDouble(instr->value(), f4);
-  LMathLog* result = new(zone()) LMathLog(input);
-  return MarkAsCall(DefineFixedDouble(result, f4), instr);
+  LOperand* input = UseRegister(instr->value());

[Yang, 2013/12/13 15:54:39]

We are not using a fixed double register anymore. Do we then get a double
register assigned?

[Sven Panne, 2013/12/16 08:20:23]

This seems to be the case, and it is done like this for floor, abs, sqrt, etc.

+  return DefineAsRegister(new(zone()) LMathLog(input));
 }
 
 
 LInstruction* LChunkBuilder::DoMathExp(HUnaryMathOperation* instr) {
   ASSERT(instr->representation().IsDouble());
   ASSERT(instr->value()->representation().IsDouble());
   LOperand* input = UseRegister(instr->value());
   LOperand* temp1 = TempRegister();
   LOperand* temp2 = TempRegister();
   LOperand* double_temp = FixedTemp(f6);  // Chosen by fair dice roll.
@@ skipping 1357 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseRegister(instr->index());
   return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal