[Mlir-commits] [mlir] [mlir-tblgen] Fix bug in emitEnumDoc (PR #118131)

[Malte Dehling]

mdehling wrote:

Thank you for taking the time.

To reproduce, run for example:
```
$ mlir-tblgen -gen-enum-doc mlir/include/mlir/Dialect/Linalg/IR/LinalgBase.td -I mlir/include
mlir-tblgen: /home/m.dehling/llvm-project/mlir/lib/TableGen/Attribute.cpp:169: mlir::tblgen::EnumAttr::EnumAttr(const llvm::Record *): Assertion `isSubClassOf("EnumAttrInfo") && "must be subclass of TableGen 'EnumAttr' class"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: ./build/bin/mlir-tblgen -gen-enum-doc mlir/include/mlir/Dialect/Linalg/IR/LinalgBase.td -I mlir/include
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  mlir-tblgen 0x000055f9b588a907
1  mlir-tblgen 0x000055f9b5888b40
2  mlir-tblgen 0x000055f9b588af9a
3  libc.so.6   0x00007fbc60c66520
4  libc.so.6   0x00007fbc60cba9fc pthread_kill + 300
5  libc.so.6   0x00007fbc60c66476 raise + 22
6  libc.so.6   0x00007fbc60c4c7f3 abort + 211
7  libc.so.6   0x00007fbc60c4c71b
8  libc.so.6   0x00007fbc60c5de96
9  mlir-tblgen 0x000055f9b58e44f5
10 mlir-tblgen 0x000055f9b57e993c
11 mlir-tblgen 0x000055f9b58c2d76
12 mlir-tblgen 0x000055f9b58c5836
13 mlir-tblgen 0x000055f9b58c258f
14 libc.so.6   0x00007fbc60c4dd90
15 libc.so.6   0x00007fbc60c4de40 __libc_start_main + 128
16 mlir-tblgen 0x000055f9b5744355
Aborted (core dumped)
```

You will notice the assertion error doesn't match the condition checked.

https://github.com/llvm/llvm-project/pull/118131