[Xtensa] Fix issue with adding scavenging frame index

espressif · Apr 19, 2024 · 829c5ad · 829c5ad
1 parent b02b417
commit 829c5ad
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/llvm/lib/Target/Xtensa/XtensaFrameLowering.cpp b/llvm/lib/Target/Xtensa/XtensaFrameLowering.cpp
@@ -399,7 +399,8 @@ void XtensaFrameLowering::processFunctionBeforeFrameFinalized(
  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
  unsigned Size = TRI.getSpillSize(RC);
  Align Alignment = TRI.getSpillAlign(RC);
- for (int i = 0; i < NeedRegs; i++)
+ // If NeedsRegs == 0, we still need a spill slot
+ for (int i = 0; i <= NeedRegs; i++)
  RS->addScavengingFrameIndex(
  MFI.CreateStackObject(Size, Alignment, false));
  }