================
@@ -1651,7 +1682,10 @@ RISCVFrameLowering::getFrameIndexReference(const
MachineFunction &MF, int FI,
MaxCSFI = std::max(CSI.front().getFrameIdx(), CSI.back().getFrameIdx());
}
- if (FI >= MinCSFI && FI <= MaxCSFI) {
+ bool IsInterruptCSR = RVFI->isSiFivePreemptibleInterrupt(MF) &&
----------------
lenary wrote:
This sounds... bad. I guess no one was hitting that in their interrupt
handlers, and instead pushing complexity like large or over-aligned stack
frames at least a function call away.
https://github.com/llvm/llvm-project/pull/221318
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