Fixed HUnaryMathOperation regarding its possible operations.

Review URL: https://codereview.chromium.org/14333013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen-instructions.cc

@@ -1310,20 +1310,18 @@ const char* HUnaryMathOperation::OpName() const {
   switch (op()) {
     case kMathFloor: return "floor";
     case kMathRound: return "round";
-    case kMathCeil: return "ceil";
     case kMathAbs: return "abs";
     case kMathLog: return "log";
     case kMathSin: return "sin";
     case kMathCos: return "cos";
     case kMathTan: return "tan";
-    case kMathASin: return "asin";
-    case kMathACos: return "acos";
-    case kMathATan: return "atan";
     case kMathExp: return "exp";
     case kMathSqrt: return "sqrt";
-    default: break;
+    case kMathPowHalf: return "pow-half";
+    default:
+      UNREACHABLE();
+      return NULL;
   }
-  return "(unknown operation)";
 }
 
 

src/hydrogen-instructions.h

@@ -2603,7 +2603,6 @@ class HUnaryMathOperation: public HTemplateInstruction<2> {
     switch (op) {
       case kMathFloor:
       case kMathRound:
-      case kMathCeil:
         set_representation(Representation::Integer32());
         break;
       case kMathAbs: