Merge sin(a), cos(a) into one instruction. TODO: Implement for ARM and MIPS.

runtime/vm/intermediate_language_arm.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/dart_entry.h"
@@ skipping 4127 matching lines @@
     // Note that index is expected smi-tagged, (i.e, times 2) for all arrays.
     // [0]: divide resut, [1]: mod result.
     __ mov(temp, ShifterOperand(0 +
         FlowGraphCompiler::DataOffsetFor(kArrayCid) - kHeapObjectTag));
     Address store_address(result, temp, LSL, 0);
     __ StoreIntoObjectNoBarrier(result, store_address, result_div);
     __ add(temp, temp, ShifterOperand(kWordSize));
     __ StoreIntoObjectNoBarrier(result, store_address, result_mod);
     return;
   }
+  if (kind() == MergedMathInstr::kSinCos) {
+    UNIMPLEMENTED();
+  }
   UNIMPLEMENTED();
 }
 
 
 LocationSummary* PolymorphicInstanceCallInstr::MakeLocationSummary() const {
   return MakeCallSummary();
 }
 
 
 void PolymorphicInstanceCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
@@ skipping 469 matching lines @@
   compiler->GenerateCall(token_pos(),
                          &label,
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM