Remove unused trigonometric code.

src/hydrogen-instructions.cc

 // Copyright 2012 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 1101 matching lines @@
   HControlInstruction::PrintDataTo(stream);
 }
 
 
 const char* HUnaryMathOperation::OpName() const {
   switch (op()) {
     case kMathFloor: return "floor";
     case kMathRound: return "round";
     case kMathAbs: return "abs";
     case kMathLog: return "log";
-    case kMathSin: return "sin";
-    case kMathCos: return "cos";
-    case kMathTan: return "tan";
     case kMathExp: return "exp";
     case kMathSqrt: return "sqrt";
     case kMathPowHalf: return "pow-half";
     default:
       UNREACHABLE();
       return NULL;
   }
 }
 
 
@@ skipping 2717 matching lines @@
     if (!FLAG_fold_constants) break;
     if (!value->IsConstant()) break;
     HConstant* constant = HConstant::cast(value);
     if (!constant->HasNumberValue()) break;
     double d = constant->DoubleValue();
     if (std::isnan(d)) {  // NaN poisons everything.
       return H_CONSTANT_DOUBLE(OS::nan_value());
     }
     if (std::isinf(d)) {  // +Infinity and -Infinity.
       switch (op) {
-        case kMathSin:
-        case kMathCos:
-        case kMathTan:
-          return H_CONSTANT_DOUBLE(OS::nan_value());
         case kMathExp:
           return H_CONSTANT_DOUBLE((d > 0.0) ? d : 0.0);
         case kMathLog:
         case kMathSqrt:
           return H_CONSTANT_DOUBLE((d > 0.0) ? d : OS::nan_value());
         case kMathPowHalf:
         case kMathAbs:
           return H_CONSTANT_DOUBLE((d > 0.0) ? d : -d);
         case kMathRound:
         case kMathFloor:
           return H_CONSTANT_DOUBLE(d);
         default:
           UNREACHABLE();
           break;
       }
     }
     switch (op) {
-      case kMathSin:
-        return H_CONSTANT_DOUBLE(fast_sin(d));
-      case kMathCos:
-        return H_CONSTANT_DOUBLE(fast_cos(d));
-      case kMathTan:
-        return H_CONSTANT_DOUBLE(fast_tan(d));
       case kMathExp:
         return H_CONSTANT_DOUBLE(fast_exp(d));
       case kMathLog:
         return H_CONSTANT_DOUBLE(fast_log(d));
       case kMathSqrt:
         return H_CONSTANT_DOUBLE(fast_sqrt(d));
       case kMathPowHalf:
         return H_CONSTANT_DOUBLE(power_double_double(d, 0.5));
       case kMathAbs:
         return H_CONSTANT_DOUBLE((d >= 0.0) ? d + 0.0 : -d);
@@ skipping 512 matching lines @@
       break;
     case kExternalMemory:
       stream->Add("[external-memory]");
       break;
   }
 
   stream->Add("@%d", offset());
 }
 
 } }  // namespace v8::internal