diff options
Diffstat (limited to 'Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h')
| -rw-r--r-- | Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h b/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h index a9dec5062..e0d817c9f 100644 --- a/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h +++ b/Source/JavaScriptCore/dfg/DFGAssemblyHelpers.h @@ -246,6 +246,16 @@ public: m_assembler.vmov(fpr, payloadGPR, tagGPR); } #endif + + enum ExceptionCheckKind { NormalExceptionCheck, InvertedExceptionCheck }; + Jump emitExceptionCheck(ExceptionCheckKind kind = NormalExceptionCheck) + { +#if USE(JSVALUE64) + return branchTestPtr(kind == NormalExceptionCheck ? NonZero : Zero, AbsoluteAddress(&globalData()->exception)); +#elif USE(JSVALUE32_64) + return branch32(kind == NormalExceptionCheck ? NotEqual : Equal, AbsoluteAddress(reinterpret_cast<char*>(&globalData()->exception) + OBJECT_OFFSETOF(JSValue, u.asBits.tag)), TrustedImm32(JSValue::EmptyValueTag)); +#endif + } #if ENABLE(SAMPLING_COUNTERS) static void emitCount(MacroAssembler& jit, AbstractSamplingCounter& counter, int32_t increment = 1) |