diff options
| -rw-r--r-- | llvm/lib/Target/ARM/ARMFrameLowering.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMFrameLowering.cpp b/llvm/lib/Target/ARM/ARMFrameLowering.cpp index 853507527e0..0540745cea3 100644 --- a/llvm/lib/Target/ARM/ARMFrameLowering.cpp +++ b/llvm/lib/Target/ARM/ARMFrameLowering.cpp @@ -413,7 +413,8 @@ void ARMFrameLowering::emitPrologue(MachineFunction &MF, // .cfi_offset operations will reflect that. if (DPRGapSize) { assert(DPRGapSize == 4 && "unexpected alignment requirements for DPRs"); - if (tryFoldSPUpdateIntoPushPop(STI, MF, &*LastPush, DPRGapSize)) + if (LastPush != MBB.end() && + tryFoldSPUpdateIntoPushPop(STI, MF, &*LastPush, DPRGapSize)) DefCFAOffsetCandidates.addExtraBytes(LastPush, DPRGapSize); else { emitSPUpdate(isARM, MBB, MBBI, dl, TII, -DPRGapSize, |
