diff options
Diffstat (limited to 'lib/Target/AArch64/AArch64FrameLowering.cpp')
| -rw-r--r-- | lib/Target/AArch64/AArch64FrameLowering.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/Target/AArch64/AArch64FrameLowering.cpp b/lib/Target/AArch64/AArch64FrameLowering.cpp index e96ee7d29b3e..4907d082eda0 100644 --- a/lib/Target/AArch64/AArch64FrameLowering.cpp +++ b/lib/Target/AArch64/AArch64FrameLowering.cpp @@ -41,6 +41,10 @@ // | | // |-----------------------------------| // | | +// | (Win64 only) varargs from reg | +// | | +// |-----------------------------------| +// | | // | prev_fp, prev_lr | // | (a.k.a. "frame record") | // |-----------------------------------| <- fp(=x29) @@ -950,7 +954,13 @@ static void computeCalleeSaveRegisterPairs( CC == CallingConv::PreserveMost || (Count & 1) == 0) && "Odd number of callee-saved regs to spill!"); - unsigned Offset = AFI->getCalleeSavedStackSize(); + int Offset = AFI->getCalleeSavedStackSize(); + + unsigned GPRSaveSize = AFI->getVarArgsGPRSize(); + const AArch64Subtarget &Subtarget = MF.getSubtarget<AArch64Subtarget>(); + bool IsWin64 = Subtarget.isCallingConvWin64(MF.getFunction()->getCallingConv()); + if (IsWin64) + Offset -= alignTo(GPRSaveSize, 16); for (unsigned i = 0; i < Count; ++i) { RegPairInfo RPI; |