| Issue |
127428
|
| Summary |
[LLVM] error in backend: Broken function found, compilation aborted
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
zhangqingqing24630
|
I mention this issue to supplement the last issue(https://github.com/llvm/llvm-project/issues/127002). I'm sorry I didn't describe the clearance last time.
This problem cannot be reproduced in the release version, but can be reproduced in the debug version. My command to build the compiler is
`
cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Debug -DLLVM_ENABLE_PROJECTS="clang;lld" -S ~/llvm-project/llvm -DCMAKE_INSTALL_PREFIX= ~/build
make -j$(nproc)
`
I tried to debug the problem and found the call stack as follows.
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The function named verify is verified based on the broken field and fails to be verified.
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By setting hardware breakpoints, I can find that the change of Broken is that attr is in the incompatible set.
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all incompatible types are added because Ty is a structure type. Attr is SExt type
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