Revert "Add DoubleTestOp instruction"

runtime/vm/intermediate_language_x64.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_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/compiler.h"
@@ skipping 3742 matching lines @@
   switch (op_kind()) {
     case Token::kADD: __ addsd(left, right); break;
     case Token::kSUB: __ subsd(left, right); break;
     case Token::kMUL: __ mulsd(left, right); break;
     case Token::kDIV: __ divsd(left, right); break;
     default: UNREACHABLE();
   }
 }
 
 
-LocationSummary* DoubleTestOpInstr::MakeLocationSummary(Zone* zone,
-                                                        bool opt) const {
-  const intptr_t kNumInputs = 1;
-  const intptr_t kNumTemps = 0;
-  LocationSummary* summary = new(zone) LocationSummary(
-      zone, kNumInputs, kNumTemps, LocationSummary::kNoCall);
-  summary->set_in(0, Location::RequiresFpuRegister());
-  summary->set_out(0, Location::RequiresRegister());
-  return summary;
-}
-
-
-void DoubleTestOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
-  ASSERT(compiler->is_optimizing());
-  const XmmRegister value = locs()->in(0).fpu_reg();
-  const Register result = locs()->out(0).reg();
-  if (op_kind() == MethodRecognizer::kDouble_getIsNaN) {
-    Label is_nan;
-    __ LoadObject(result, Bool::True());
-    __ comisd(value, value);
-    __ j(PARITY_EVEN, &is_nan, Assembler::kNearJump);
-    __ LoadObject(result, Bool::False());
-    __ Bind(&is_nan);
-  } else {
-    ASSERT(op_kind() == MethodRecognizer::kDouble_getIsInfinite);
-    Label is_inf, done;
-    __ AddImmediate(RSP, Immediate(-kDoubleSize));
-    __ movsd(Address(RSP, 0), value);
-    __ movq(result, Address(RSP, 0));
-    // Mask off the sign.
-    __ AndImmediate(result, Immediate(0x7FFFFFFFFFFFFFFFLL));
-    // Compare with +infinity.
-    __ CompareImmediate(result, Immediate(0x7FF0000000000000LL));
-    __ j(EQUAL, &is_inf, Assembler::kNearJump);
-    __ LoadObject(result, Bool::False());
-    __ jmp(&done);
-
-    __ Bind(&is_inf);
-    __ LoadObject(result, Bool::True());
-
-    __ Bind(&done);
-    __ AddImmediate(RSP, Immediate(kDoubleSize));
-  }
-}
-
-
 LocationSummary* BinaryFloat32x4OpInstr::MakeLocationSummary(Zone* zone,
                                                              bool opt) const {
   const intptr_t kNumInputs = 2;
   const intptr_t kNumTemps = 0;
   LocationSummary* summary = new(zone) LocationSummary(
       zone, kNumInputs, kNumTemps, LocationSummary::kNoCall);
   summary->set_in(0, Location::RequiresFpuRegister());
   summary->set_in(1, Location::RequiresFpuRegister());
   summary->set_out(0, Location::SameAsFirstInput());
   return summary;
@@ skipping 2864 matching lines @@
   __ Drop(1);
   __ popq(result);
 }
 
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64