For Doubl erounding call C-function instead of attempting to inline it. Fixes issue 8760.

runtime/vm/intermediate_language_ia32.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_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 2696 matching lines @@
   Label do_call, done;
   // Check for overflow and that it fits into Smi.
   __ cmpl(result, Immediate(0xC0000000));
   __ j(NEGATIVE, deopt);
   __ SmiTag(result);
 }
 
 
 LocationSummary* DoubleToDoubleInstr::MakeLocationSummary() const {
   const intptr_t kNumInputs = 1;
-  const intptr_t kNumTemps =
-      (recognized_kind() == MethodRecognizer::kDoubleRound) ? 1 : 0;
+  const intptr_t kNumTemps = 0;
   LocationSummary* result =
       new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
   result->set_in(0, Location::RequiresFpuRegister());
   result->set_out(Location::RequiresFpuRegister());
-  if (recognized_kind() == MethodRecognizer::kDoubleRound) {
-    result->set_temp(0, Location::RequiresFpuRegister());
-  }
   return result;
 }
 
 
 void DoubleToDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   XmmRegister value = locs()->in(0).fpu_reg();
   XmmRegister result = locs()->out().fpu_reg();
   switch (recognized_kind()) {
     case MethodRecognizer::kDoubleTruncate:
       __ roundsd(result, value,  Assembler::kRoundToZero);
       break;
     case MethodRecognizer::kDoubleFloor:
       __ roundsd(result, value,  Assembler::kRoundDown);
       break;
     case MethodRecognizer::kDoubleCeil:
       __ roundsd(result, value,  Assembler::kRoundUp);
       break;
-    case MethodRecognizer::kDoubleRound: {
-      XmmRegister temp = locs()->temp(0).fpu_reg();
-      __ DoubleRound(result, value, temp);
-      break;
-    }
     default:
       UNREACHABLE();
   }
 }
 
 
 LocationSummary* InvokeMathCFunctionInstr::MakeLocationSummary() const {
   ASSERT((InputCount() == 1) || (InputCount() == 2));
   const intptr_t kNumTemps = 0;
   LocationSummary* result =
@@ skipping 808 matching lines @@
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_IA32