X87: Inline Math.fround in optimized code.

src/x87/lithium-x87.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/hydrogen-osr.h"
 #include "src/lithium-allocator-inl.h"
@@ skipping 1130 matching lines @@
   LOperand* function = UseFixed(instr->function(), edi);
   LInvokeFunction* result = new(zone()) LInvokeFunction(context, function);
   return MarkAsCall(DefineFixed(result, eax), instr, CANNOT_DEOPTIMIZE_EAGERLY);
 }
 
 
 LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
   switch (instr->op()) {
     case kMathFloor: return DoMathFloor(instr);
     case kMathRound: return DoMathRound(instr);
+    case kMathFround: return DoMathFround(instr);
     case kMathAbs: return DoMathAbs(instr);
     case kMathLog: return DoMathLog(instr);
     case kMathExp: return DoMathExp(instr);
     case kMathSqrt: return DoMathSqrt(instr);
     case kMathPowHalf: return DoMathPowHalf(instr);
     case kMathClz32: return DoMathClz32(instr);
     default:
       UNREACHABLE();
       return NULL;
   }
 }
 
 
 LInstruction* LChunkBuilder::DoMathFloor(HUnaryMathOperation* instr) {
   LOperand* input = UseRegisterAtStart(instr->value());
   LMathFloor* result = new(zone()) LMathFloor(input);
   return AssignEnvironment(DefineAsRegister(result));
 }
 
 
 LInstruction* LChunkBuilder::DoMathRound(HUnaryMathOperation* instr) {
   // Crankshaft is turned off for nosse2.
   UNREACHABLE();
   return NULL;
 }
 
 
+LInstruction* LChunkBuilder::DoMathFround(HUnaryMathOperation* instr) {
+  LOperand* input = UseRegisterAtStart(instr->value());
+  LMathFround* result = new (zone()) LMathFround(input);
+  return AssignEnvironment(DefineAsRegister(result));
+}
+
+
 LInstruction* LChunkBuilder::DoMathAbs(HUnaryMathOperation* instr) {
   LOperand* context = UseAny(instr->context());  // Deferred use.
   LOperand* input = UseRegisterAtStart(instr->value());
   LInstruction* result =
       DefineSameAsFirst(new(zone()) LMathAbs(context, input));
   Representation r = instr->value()->representation();
   if (!r.IsDouble() && !r.IsSmiOrInteger32()) result = AssignPointerMap(result);
   if (!r.IsDouble()) result = AssignEnvironment(result);
   return result;
 }
@@ skipping 1478 matching lines @@
   LOperand* function = UseRegisterAtStart(instr->function());
   LAllocateBlockContext* result =
       new(zone()) LAllocateBlockContext(context, function);
   return MarkAsCall(DefineFixed(result, esi), instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X87