[clang] [Cygwin] Cygwin -fuse-cxa-atexit (PR #74913)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: 徐持恒 Xu Chiheng (xu-chiheng)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/74913.diff


1 Files Affected:

- (modified) clang/lib/Driver/ToolChains/Clang.cpp (+2-1) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index eb26bfade47b7a..df062ccc9021f7 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -6656,7 +6656,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   // -fuse-cxa-atexit is default.
   if (!Args.hasFlag(
           options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit,
-          !RawTriple.isOSAIX() && !RawTriple.isOSWindows() &&
+          !RawTriple.isOSAIX() && !RawTriple.isWindowsGNUEnvironment() &&
+              !RawTriple.isWindowsMSVCEnvironment() &&
               ((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) ||
                RawTriple.hasEnvironment())) ||
       KernelOrKext)

``````````

</details>


https://github.com/llvm/llvm-project/pull/74913