[libcxx-commits] [libcxx] [libc++][test] re-enable clear padding runtime test (PR #211258)

[via libcxx-commits]

llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: Hui (huixie90)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/211258.diff


1 Files Affected:

- (modified) libcxx/test/libcxx/atomics/builtin_clear_padding.pass.cpp (+14-1) 


``````````diff
diff --git a/libcxx/test/libcxx/atomics/builtin_clear_padding.pass.cpp b/libcxx/test/libcxx/atomics/builtin_clear_padding.pass.cpp
index f9c910eca1f47..73ff02c10207d 100644
--- a/libcxx/test/libcxx/atomics/builtin_clear_padding.pass.cpp
+++ b/libcxx/test/libcxx/atomics/builtin_clear_padding.pass.cpp
@@ -7,7 +7,20 @@
 //===----------------------------------------------------------------------===//
 // UNSUPPORTED: c++03
 // UNSUPPORTED: gcc
-// UNSUPPORTED: clang-21, clang-22, clang-23, clang-24, apple-clang-21
+
+// Older versions of Clang don't support __builtin_clear_padding
+// UNSUPPORTED: clang-19, clang-20, clang-21, clang-22, apple-clang-17, apple-clang-21
+
+// Older Clang doesn't handle __builtin_clear_padding correctly on Windows
+// (see https://github.com/llvm/llvm-project/issues/209787)
+// XFAIL: clang-23 && target={{.+}}-{{.+}}-windows-msvc
+// UNSUPPORTED: clang-24 && target={{.+}}-{{.+}}-windows-msvc
+
+// ASAN has a bug where it does not calculate the correct size
+// of ext_vector_type of fp80 long double
+// (see https://github.com/llvm/llvm-project/issues/212002)
+// XFAIL: clang-23 && asan
+// UNSUPPORTED: clang-24 && asan
 
 // ADDITIONAL_COMPILE_FLAGS: -Wno-deprecated-volatile -Wno-dynamic-class-memaccess
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/211258