diff options
| -rw-r--r-- | src/qml/jit/qv4assembler.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/qml/jit/qv4assembler.cpp b/src/qml/jit/qv4assembler.cpp index 72b057b2bc..c3e16c4093 100644 --- a/src/qml/jit/qv4assembler.cpp +++ b/src/qml/jit/qv4assembler.cpp @@ -276,12 +276,16 @@ struct PlatformAssembler_X86_All : JSC::MacroAssembler<JSC::MacroAssemblerX86> push(JSStackFrameRegister); push(CppStackFrameRegister); push(EngineRegister); + // Ensure the stack is 16-byte aligned in order for compiler generated aligned SSE2 + // instructions to be able to target the stack. + subPtr(TrustedImm32(8), StackPointerRegister); loadPtr(Address(FramePointerRegister, 2 * PointerSize), CppStackFrameRegister); loadPtr(Address(FramePointerRegister, 3 * PointerSize), EngineRegister); } void generatePlatformFunctionExit() { + addPtr(TrustedImm32(8), StackPointerRegister); pop(EngineRegister); pop(CppStackFrameRegister); pop(JSStackFrameRegister); |