Inline Math.max and Math.min in crankshaft.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index 5cd276f3001b2f08d12df41d37d2ba50b7a82c82..71ee8e8f6adabb15a989d4a0175e967f8916e4e8 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1456,6 +1456,30 @@ LInstruction* LChunkBuilder::DoPower(HPower* instr) {
 }
 
 
+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());