Commit 7f20a7a7 authored by Iain Ireland's avatar Iain Ireland
Browse files

Bug 1757476: Align spills of ARM64 double registers r=jseward 

Differential Revision: https://phabricator.services.mozilla.com/D140372
parent 990afe24

js/src/jit/JitFrames.cpp

+4 −2
Original line number Diff line number Diff line
@@ -1023,13 +1023,15 @@ static void TraceIonICCallFrame(JSTracer* trc, const JSJitFrameIter& frame) { 
  TraceRoot(trc, layout->stubCode(), "ion-ic-call-code");

}



#ifdef JS_CODEGEN_MIPS32

#if defined(JS_CODEGEN_ARM64) || defined(JS_CODEGEN_MIPS32)

uint8_t* alignDoubleSpill(uint8_t* pointer) {

  uintptr_t address = reinterpret_cast<uintptr_t>(pointer);

  address &= ~(ABIStackAlignment - 1);

  address &= ~(uintptr_t(ABIStackAlignment) - 1);

  return reinterpret_cast<uint8_t*>(address);

}

#endif



#ifdef JS_CODEGEN_MIPS32

static void TraceJitExitFrameCopiedArguments(JSTracer* trc,

                                             const VMFunctionData* f,

                                             ExitFooterFrame* footer) {

js/src/jit/JitFrames.h

+2 −2
Original line number Diff line number Diff line
@@ -211,11 +211,11 @@ static inline uint32_t MakeFrameDescriptor(uint32_t frameSize, FrameType type, 
// Returns the JSScript associated with the topmost JIT frame.

JSScript* GetTopJitJSScript(JSContext* cx);



#ifdef JS_CODEGEN_MIPS32

#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_ARM64)

uint8_t* alignDoubleSpill(uint8_t* pointer);

#else

inline uint8_t* alignDoubleSpill(uint8_t* pointer) {

  // This is NO-OP on non-MIPS platforms.

  // This is a no-op on most platforms.

  return pointer;

}

#endif