[Mlir-commits] [mlir] [mlir] Fix `--mlir-print-ir-tree-dir` when the symbol name contains `/` (PR #137686)

[Mehdi Amini]

joker-eph wrote:

The test fails on Windows as expected: 

> # | Error while creating directory C:\ws\src\build\tools\mlir\test\Pass\Output\ir-printing-file-tree.mlir.tmp\builtin_module_outer\func_func_sym\backslash: no such file or directory

I pushed the fix now, should fix the CI.

>  I was wondering if there was a standard LLVM "sanitization" function for path names. Especially on Windows there could be a lot of edge cases for strings that are allowed symbol names but are not valid Windows path names.

Good point: I searched in `llvm/include/llvm/Support/FileSystem.h` but couldn't find anything right now.

https://github.com/llvm/llvm-project/pull/137686