Index: src/arm/simulator-arm.cc |
diff --git a/src/arm/simulator-arm.cc b/src/arm/simulator-arm.cc |
index 143b8393629a093048151bfd61e9baf5782598e3..00650576c07c1b567545049929c0fa3d0424040d 100644 |
--- a/src/arm/simulator-arm.cc |
+++ b/src/arm/simulator-arm.cc |
@@ -2600,11 +2600,6 @@ void Simulator::DecodeVCMP(Instr* instr) { |
precision = kDoublePrecision; |
} |
- if (instr->Bit(7) != 0) { |
- // Raising exceptions for quiet NaNs are not supported. |
- UNIMPLEMENTED(); // Not used by V8. |
- } |
- |
int d = instr->VFPDRegCode(precision); |
int m = 0; |
if (instr->Opc2Field() == 0x4) { |
@@ -2618,6 +2613,13 @@ void Simulator::DecodeVCMP(Instr* instr) { |
dm_value = get_double_from_d_register(m); |
} |
+ // Raise exceptions for quiet NaNs if necessary. |
+ if (instr->Bit(7) == 1) { |
+ if (isnan(dd_value)) { |
+ inv_op_vfp_flag_ = true; |
+ } |
+ } |
+ |
Compute_FPSCR_Flags(dd_value, dm_value); |
} else { |
UNIMPLEMENTED(); // Not used by V8. |