[llvm] 842a332 - [NVPTX] Fix DwarfFrameBase construction (#101000)
via llvm-commits
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Mon Jul 29 13:46:22 PDT 2024
Author: Nikita Popov
Date: 2024-07-29T22:46:18+02:00
New Revision: 842a332f11f53c698fa0560505e533ecdca28876
URL: https://github.com/llvm/llvm-project/commit/842a332f11f53c698fa0560505e533ecdca28876
DIFF: https://github.com/llvm/llvm-project/commit/842a332f11f53c698fa0560505e533ecdca28876.diff
LOG: [NVPTX] Fix DwarfFrameBase construction (#101000)
The `{0}` here was initializing the first union member `Register`,
rather than the union member used by CFA, which is `Offset`. Prior to
https://github.com/llvm/llvm-project/pull/99263 this was harmless, but
now they have different layout, leading to test failures on some
platforms (at least i686 and s390x).
Added:
Modified:
llvm/lib/Target/NVPTX/NVPTXFrameLowering.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/NVPTX/NVPTXFrameLowering.cpp b/llvm/lib/Target/NVPTX/NVPTXFrameLowering.cpp
index 10ae81e0460e3..9abe0e3186f20 100644
--- a/llvm/lib/Target/NVPTX/NVPTXFrameLowering.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXFrameLowering.cpp
@@ -93,5 +93,8 @@ MachineBasicBlock::iterator NVPTXFrameLowering::eliminateCallFramePseudoInstr(
TargetFrameLowering::DwarfFrameBase
NVPTXFrameLowering::getDwarfFrameBase(const MachineFunction &MF) const {
- return {DwarfFrameBase::CFA, {0}};
+ DwarfFrameBase FrameBase;
+ FrameBase.Kind = DwarfFrameBase::CFA;
+ FrameBase.Location.Offset = 0;
+ return FrameBase;
}
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