[llvm-branch-commits] [llvm] [mlir] [mlir][OpenMP] Convert omp.cancellation_point to LLVMIR (PR #137205)

[Michael Kruse via llvm-branch-commits]

Meinersbur wrote:

The Windows CI failure look related:
```
C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp -triple x86_64-apple-darwin13.4.0 -emit-llvm -o - | c:\ws\src\build\bin\filecheck.exe --allow-unused-prefixes C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp --check-prefix=CHECK1
# executed command: 'c:\ws\src\build\bin\clang.exe' -cc1 -internal-isystem 'C:\ws\src\build\lib\clang\21\include' -nostdsysteminc -fopenmp -fopenmp-version=45 -std=c++11 -include-pch 'C:\ws\src\build\tools\clang\test\OpenMP\Output\cancel_codegen.cpp.tmp.0' -verify 'C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp' -triple x86_64-apple-darwin13.4.0 -emit-llvm -o -
# note: command had no output on stdout or stderr
# executed command: 'c:\ws\src\build\bin\filecheck.exe' --allow-unused-prefixes 'C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp' --check-prefix=CHECK1
# note: command had no output on stdout or stderr
# RUN: at line 6
c:\ws\src\build\bin\clang.exe -cc1 -internal-isystem C:\ws\src\build\lib\clang\21\include -nostdsysteminc -verify -fopenmp -fopenmp-version=45 -fopenmp-enable-irbuilder -triple x86_64-apple-darwin13.4.0 -emit-llvm -o - C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp | c:\ws\src\build\bin\filecheck.exe --allow-unused-prefixes C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp --check-prefix=CHECK3
# executed command: 'c:\ws\src\build\bin\clang.exe' -cc1 -internal-isystem 'C:\ws\src\build\lib\clang\21\include' -nostdsysteminc -verify -fopenmp -fopenmp-version=45 -fopenmp-enable-irbuilder -triple x86_64-apple-darwin13.4.0 -emit-llvm -o - 'C:\ws\src\clang\test\OpenMP\cancel_codegen.cpp'
# .---command stderr------------
# | While deleting: label %omp_section_loop.exit
# | Use still stuck around after Def is destroyed:  br
# | Uses remain when a value is destroyed!
# | UNREACHABLE executed at C:\ws\src\llvm\lib\IR\Value.cpp:102!
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
# | Stack dump:
# | 0.	Program arguments: c:\\ws\\src\\build\\bin\\clang.exe -cc1 -internal-isystem C:\\ws\\src\\build\\lib\\clang\\21\\include -nostdsysteminc -verify -fopenmp -fopenmp-version=45 -fopenmp-enable-irbuilder -triple x86_64-apple-darwin13.4.0 -emit-llvm -o - C:\\ws\\src\\clang\\test\\OpenMP\\cancel_codegen.cpp
```

https://github.com/llvm/llvm-project/pull/137205