Inline Math.max and Math.min in crankshaft.

src/ia32/lithium-ia32.cc

 // Copyright 2011 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 1438 matching lines @@
   LOperand* left = UseFixedDouble(instr->left(), xmm2);
   LOperand* right = exponent_type.IsDouble() ?
       UseFixedDouble(instr->right(), xmm1) :
       UseFixed(instr->right(), eax);
   LPower* result = new(zone()) LPower(left, right);
   return MarkAsCall(DefineFixedDouble(result, xmm3), instr,
                     CAN_DEOPTIMIZE_EAGERLY);
 }
 
 
+LInstruction* LChunkBuilder::DoMathMinMax(HMathMinMax* instr) {
+  ASSERT(instr->representation().Equals(instr->left()->representation()));
+  ASSERT(instr->representation().Equals(instr->right()->representation()));
+  LOperand* left = UseRegister(instr->left());
+  LOperand* right = UseRegister(instr->right());
+  LOperand* temp0 = NULL;
+  LOperand* temp1 = NULL;
+  LOperand* temp2 = NULL;
+  if (instr->representation().IsTagged()) {
+    // Both arguments are tagged.
+    temp0 = TempRegister();
+    temp1 = FixedTemp(xmm1);
+    temp2 = FixedTemp(xmm2);
+  } else if (instr->representation().IsDouble()) {
+    // Both arguments are unboxed doubles.
+    temp0 = TempRegister();
+    temp1 = FixedTemp(xmm1);
+  }  // Else: both arguments are untagged integers.
+  LMathMinMax* minmax =
+      new(zone()) LMathMinMax(left, right, temp0, temp1, temp2, instr->op());
+  return AssignEnvironment(DefineSameAsFirst(minmax));
+}
+
+
 LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
   ASSERT(instr->left()->representation().IsTagged());
   ASSERT(instr->right()->representation().IsTagged());
   LOperand* context = UseFixed(instr->context(), esi);
   LOperand* left = UseFixed(instr->left(), edx);
   LOperand* right = UseFixed(instr->right(), eax);
   LCmpT* result = new(zone()) LCmpT(context, left, right);
   return MarkAsCall(DefineFixed(result, eax), instr);
 }
 
@@ skipping 905 matching lines @@
   LOperand* key = UseOrConstantAtStart(instr->key());
   LOperand* object = UseOrConstantAtStart(instr->object());
   LIn* result = new(zone()) LIn(context, key, object);
   return MarkAsCall(DefineFixed(result, eax), instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32