[llvm] [Cygwin] Emit COMDAT name correctly for Cygwin (PR #138621)

[via llvm-commits]

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@@ -1,8 +1,10 @@
 ; RUN: llc -function-sections -mtriple=x86_64-windows-itanium < %s | FileCheck %s
 ; RUN: llc -function-sections -mtriple=x86_64-windows-msvc < %s | FileCheck %s
 ; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU
+; RUN: llc -function-sections -mtriple=x86_64-pc-cygwin < %s | FileCheck %s --check-prefix=GNU
 ; RUN: llc -function-sections -mtriple=i686-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU32
----------------
jeremyd2019 wrote:

```suggestion
; RUN: llc -function-sections -mtriple=i686-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU32
; RUN: llc -function-sections -mtriple=i686-pc-cygwin < %s | FileCheck %s --check-prefix=GNU32
```

?

https://github.com/llvm/llvm-project/pull/138621