Refactor Math.min/max to be a single HInstruction.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index ee9bf79601da0a1f1bd9b97ed9fb33b172d89e6f..5f9cc726222560e663448a21c079e7597a56f2e8 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -109,7 +109,6 @@ class LCodeGen;
   V(IsStringAndBranch)                          \
   V(IsSmiAndBranch)                             \
   V(IsUndetectableAndBranch)                    \
-  V(StringCompareAndBranch)                     \
   V(JSArrayLength)                              \
   V(Label)                                      \
   V(LazyBailout)                                \
@@ -127,6 +126,7 @@ class LCodeGen;
   V(LoadNamedFieldPolymorphic)                  \
   V(LoadNamedGeneric)                           \
   V(MathFloorOfDiv)                             \
+  V(MathMinMax)                                 \
   V(MathPowHalf)                                \
   V(ModI)                                       \
   V(MulI)                                       \
@@ -158,6 +158,7 @@ class LCodeGen;
   V(StringAdd)                                  \
   V(StringCharCodeAt)                           \
   V(StringCharFromCode)                         \
+  V(StringCompareAndBranch)                     \
   V(StringLength)                               \
   V(SubI)                                       \
   V(TaggedToI)                                  \
@@ -1088,6 +1089,18 @@ class LAddI: public LTemplateInstruction<1, 2, 0> {
 };
 
 
+class LMathMinMax: public LTemplateInstruction<1, 2, 0> {
+ public:
+  LMathMinMax(LOperand* left, LOperand* right) {
+    inputs_[0] = left;
+    inputs_[1] = right;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(MathMinMax, "min-max")
+  DECLARE_HYDROGEN_ACCESSOR(MathMinMax)
+};
+
+
 class LPower: public LTemplateInstruction<1, 2, 0> {
  public:
   LPower(LOperand* left, LOperand* right) {