diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/qml/jit/qv4assemblercommon_p.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/qml/jit/qv4assemblercommon_p.h b/src/qml/jit/qv4assemblercommon_p.h index cbbd6464d9..bf239fcfd8 100644 --- a/src/qml/jit/qv4assemblercommon_p.h +++ b/src/qml/jit/qv4assemblercommon_p.h @@ -398,7 +398,8 @@ public: void generatePlatformFunctionExit(bool tailCall = false) { - move(AccumulatorRegister, ReturnValueRegister); + if (!tailCall) // do not overwrite arg0 (used in the tail call) + move(AccumulatorRegister, ReturnValueRegister); popPair(EngineRegister, CppStackFrameRegister); popPair(JSStackFrameRegister, AccumulatorRegister); popPair(JSC::ARM64Registers::fp, JSC::ARM64Registers::lr); @@ -492,8 +493,10 @@ public: void generatePlatformFunctionExit(bool tailCall = false) { - move(AccumulatorRegisterValue, ReturnValueRegisterValue); - move(AccumulatorRegisterTag, ReturnValueRegisterTag); + if (!tailCall) { // do not overwrite arg0 and arg1 (used in the tail call) + move(AccumulatorRegisterValue, ReturnValueRegisterValue); + move(AccumulatorRegisterTag, ReturnValueRegisterTag); + } addPtr(TrustedImm32(4), StackPointerRegister); // stack alignment pop(EngineRegister); pop(CppStackFrameRegister); |