[llvm-branch-commits] [libcxxabi] [release/18.x][backport][libc++abi] Use __has_feature check to enable usage of thread_local for exception storage (PR #132241)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxxabi

Author: Bushev Dmitry (dybv-sc)

<details>
<summary>Changes</summary>

This is a backport of original commit #<!-- -->97591 to 18.x release.

---
Full diff: https://github.com/llvm/llvm-project/pull/132241.diff


1 Files Affected:

- (modified) libcxxabi/src/cxa_exception_storage.cpp (+1-1) 


``````````diff
diff --git a/libcxxabi/src/cxa_exception_storage.cpp 
b/libcxxabi/src/cxa_exception_storage.cpp
index 3a3233a1b9272..83408c904e1f7 100644
--- a/libcxxabi/src/cxa_exception_storage.cpp
+++ b/libcxxabi/src/cxa_exception_storage.cpp
@@ -24,7 +24,7 @@ extern "C" {
 } // extern "C"
 } // namespace __cxxabiv1
 
-#elif defined(HAS_THREAD_LOCAL)
+#elif __has_feature(cxx_thread_local)
 
 namespace __cxxabiv1 {
 namespace {

``````````

</details>


https://github.com/llvm/llvm-project/pull/132241
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