Index: runtime/vm/intermediate_language_arm64.cc |
diff --git a/runtime/vm/intermediate_language_arm64.cc b/runtime/vm/intermediate_language_arm64.cc |
index 1eabe23055f10867cae5ef623d5ba392d905b47c..3503a991b702d8f84a328d78d3ff4809f4b816ef 100644 |
--- a/runtime/vm/intermediate_language_arm64.cc |
+++ b/runtime/vm/intermediate_language_arm64.cc |
@@ -3482,6 +3482,41 @@ 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 VRegister value = locs()->in(0).fpu_reg(); |
+ const Register result = locs()->out(0).reg(); |
+ if (op_kind() == MethodRecognizer::kDouble_getIsNaN) { |
+ __ fcmpd(value, value); |
+ __ LoadObject(result, Bool::False()); |
+ __ LoadObject(TMP, Bool::True()); |
+ __ csel(result, TMP, result, VS); |
+ } else { |
+ ASSERT(op_kind() == MethodRecognizer::kDouble_getIsInfinite); |
+ __ vmovrd(result, value, 0); |
+ // Mask off the sign. |
+ __ AndImmediate(result, result, 0x7FFFFFFFFFFFFFFFLL); |
+ // Compare with +infinity. |
+ __ CompareImmediate(result, 0x7FF0000000000000LL); |
+ __ LoadObject(result, Bool::False()); |
+ __ LoadObject(TMP, Bool::True()); |
+ __ csel(result, TMP, result, EQ); |
+ } |
+} |
+ |
+ |
LocationSummary* BinaryFloat32x4OpInstr::MakeLocationSummary(Zone* zone, |
bool opt) const { |
const intptr_t kNumInputs = 2; |