Revert "Add DoubleTestOp instruction"

runtime/vm/intermediate_language_arm.cc

Index: runtime/vm/intermediate_language_arm.cc
diff --git a/runtime/vm/intermediate_language_arm.cc b/runtime/vm/intermediate_language_arm.cc
index 04e559503683ed04ba89859b22455b2b841fb900..f92bbf439e83a7eab2e41ec5ef8942e67a1b97cf 100644
--- a/runtime/vm/intermediate_language_arm.cc
+++ b/runtime/vm/intermediate_language_arm.cc
@@ -4142,49 +4142,6 @@ void BinaryDoubleOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 }
 
 
-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 DRegister value = EvenDRegisterOf(locs()->in(0).fpu_reg());
-  const Register result = locs()->out(0).reg();
-  if (op_kind() == MethodRecognizer::kDouble_getIsNaN) {
-    __ LoadObject(result, Bool::False());
-    __ vcmpd(value, value);
-    __ vmstat();
-    __ LoadObject(result, Bool::True(), VS);
-  } else {
-    ASSERT(op_kind() == MethodRecognizer::kDouble_getIsInfinite);
-    Label done;
-    // TMP <- value[0:31], result <- value[32:63]
-    __ vmovrrd(TMP, result, value);
-    __ cmp(TMP, Operand(0));
-    __ LoadObject(result, Bool::False(), NE);
-    __ b(&done, NE);
-
-    // Mask off the sign bit.
-    __ AndImmediate(result, result, 0x7FFFFFFF);
-    // Compare with +infinity.
-    __ CompareImmediate(result, 0x7FF00000);
-    __ LoadObject(result, Bool::False(), NE);
-    __ b(&done, NE);
-
-    __ LoadObject(result, Bool::True());
-    __ Bind(&done);
-  }
-}
-
-
 LocationSummary* BinaryFloat32x4OpInstr::MakeLocationSummary(Zone* zone,
                                                              bool opt) const {
   const intptr_t kNumInputs = 2;