[builtins] Introduce proper Float64Cos and Float64Sin.

src/crankshaft/hydrogen-instructions.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/crankshaft/hydrogen-instructions.h"
 
 #include "src/base/bits.h"
 #include "src/base/ieee754.h"
 #include "src/base/safe_math.h"
 #include "src/crankshaft/hydrogen-infer-representation.h"
@@ skipping 1097 matching lines @@
 const char* HUnaryMathOperation::OpName() const {
   switch (op()) {
     case kMathFloor:
       return "floor";
     case kMathFround:
       return "fround";
     case kMathRound:
       return "round";
     case kMathAbs:
       return "abs";
+    case kMathCos:
+      return "cos";
     case kMathLog:
       return "log";
     case kMathExp:
       return "exp";
+    case kMathSin:
+      return "sin";
     case kMathSqrt:
       return "sqrt";
     case kMathPowHalf:
       return "pow-half";
     case kMathClz32:
       return "clz32";
     default:
       UNREACHABLE();
       return NULL;
   }
@@ skipping 2262 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(std::numeric_limits<double>::quiet_NaN());
     }
     if (std::isinf(d)) {  // +Infinity and -Infinity.
       switch (op) {
+        case kMathCos:
+        case kMathSin:
+          return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN());
         case kMathExp:
           return H_CONSTANT_DOUBLE((d > 0.0) ? d : 0.0);
         case kMathLog:
         case kMathSqrt:
           return H_CONSTANT_DOUBLE(
               (d > 0.0) ? d : std::numeric_limits<double>::quiet_NaN());
         case kMathPowHalf:
         case kMathAbs:
           return H_CONSTANT_DOUBLE((d > 0.0) ? d : -d);
         case kMathRound:
         case kMathFround:
         case kMathFloor:
           return H_CONSTANT_DOUBLE(d);
         case kMathClz32:
           return H_CONSTANT_INT(32);
         default:
           UNREACHABLE();
           break;
       }
     }
     switch (op) {
+      case kMathCos:
+        return H_CONSTANT_DOUBLE(base::ieee754::cos(d));
       case kMathExp:
         return H_CONSTANT_DOUBLE(base::ieee754::exp(d));
       case kMathLog:
         return H_CONSTANT_DOUBLE(base::ieee754::log(d));
+      case kMathSin:
+        return H_CONSTANT_DOUBLE(base::ieee754::sin(d));
       case kMathSqrt:
         lazily_initialize_fast_sqrt(isolate);
         return H_CONSTANT_DOUBLE(fast_sqrt(d, isolate));
       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);
       case kMathRound:
         // -0.5 .. -0.0 round to -0.0.
         if ((d >= -0.5 && Double(d).Sign() < 0)) return H_CONSTANT_DOUBLE(-0.0);
@@ skipping 592 matching lines @@
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 }  // namespace internal
 }  // namespace v8