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| author | wanglei <wanglei@loongson.cn> | 2022-11-10 21:01:05 +0800 |
|---|---|---|
| committer | wanglei <wanglei@loongson.cn> | 2022-11-10 21:14:27 +0800 |
| commit | d20c54cbdb9a4a12bbfb1d51c72e52abd3f039a6 (patch) | |
| tree | 5ee812ddc99bdfba7d3e41c556d603807c5c30ac /flang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 5bc36c8cb483413bc127960552cd00f168475fc0 (diff) | |
| download | llvm-d20c54cbdb9a4a12bbfb1d51c72e52abd3f039a6.zip llvm-d20c54cbdb9a4a12bbfb1d51c72e52abd3f039a6.tar.gz llvm-d20c54cbdb9a4a12bbfb1d51c72e52abd3f039a6.tar.bz2 | |
[LoongArch] Override TargetFrameLowering::spillCalleeSavedRegisters
When using `llvm.returnaddress` intrinsic, special handling is required
for the spill of the `RA` register. Otherwise it will cause the verifier
fail in some cases (e.g. pr17377.c of the GCC C Torture Suite).
Specifically:
```
*** Bad machine code: Using an undefined physical register ***
- function: f
- basic block: %bb.0 entry (0xd94d18)
- instruction: ST_D killed $r1, $r22, -40 :: (store (s64) into %stack.2)
- operand 0: killed $r1
```
Reviewed By: SixWeining
Differential Revision: https://reviews.llvm.org/D137387
Diffstat (limited to 'flang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions