Inline Math.fround in optimized code.

src/arm64/lithium-codegen-arm64.cc

 // Copyright 2013 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/v8.h"
 
 #include "src/arm64/lithium-codegen-arm64.h"
 #include "src/arm64/lithium-gap-resolver-arm64.h"
 #include "src/code-stubs.h"
 #include "src/hydrogen-osr.h"
@@ skipping 4182 matching lines @@
   DeoptimizeIf(vs, instr->environment());
 
   // Now, the only unhandled inputs are in the range [0.0, 1.5[ (or [-0.5, 1.5[
   // if we didn't generate a -0.0 bailout). If input >= 0.5 then return 1,
   // else 0; we avoid dealing with 0.499...94 directly.
   __ Cset(result, ge);
   __ Bind(&done);
 }
 
 
+void LCodeGen::DoMathFround(LMathFround* instr) {
+  DoubleRegister input = ToDoubleRegister(instr->value());
+  DoubleRegister result = ToDoubleRegister(instr->result());
+  __ Fcvt(result.S(), input);
+  __ Fcvt(result, result.S());
+}
+
+
 void LCodeGen::DoMathSqrt(LMathSqrt* instr) {
   DoubleRegister input = ToDoubleRegister(instr->value());
   DoubleRegister result = ToDoubleRegister(instr->result());
   __ Fsqrt(result, input);
 }
 
 
 void LCodeGen::DoMathMinMax(LMathMinMax* instr) {
   HMathMinMax::Operation op = instr->hydrogen()->operation();
   if (instr->hydrogen()->representation().IsInteger32()) {
@@ skipping 1825 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 
 } }  // namespace v8::internal