Add 64bit atomic check in the is_always_lock_free_pass test (#609)

Author: vrukesh

CMakeLists.txt

@@ -288,6 +288,7 @@ set(
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0007-PATCH-Remove-ctime.timespec.compile.pass.cpp-xfail.patch
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0008-PATCH-libc-AArch64-Add-an-AArch64-setjmp-longjmp.-10.patch
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0009-DAGISel-Keep-flags-when-converting-FP-load-store-to-.patch
+    ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0010-Add-64bit-atomic-check-in-the-is_always_lock_free_pa.patch
 )
 FetchContent_Declare(llvmproject
     GIT_REPOSITORY https://github.com/llvm/llvm-project.git

patches/llvm-project/0010-Add-64bit-atomic-check-in-the-is_always_lock_free_pa.patch

@@ -0,0 +1,25 @@
+From 627a98558d991df235b58eb33c666d9e674d54be Mon Sep 17 00:00:00 2001
+From: Vrukesh V Panse <[email protected]>
+Date: Wed, 18 Dec 2024 20:34:23 +0000
+Subject: Add 64bit atomic check in the is_always_lock_free_pass test
+
+---
+ .../std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp   | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp b/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp
+index 723e7b36f503..0e3f5dbf423a 100644
+--- a/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp
++++ b/libcxx/test/std/atomics/atomics.lockfree/is_always_lock_free.pass.cpp
+@@ -7,7 +7,7 @@
+ //===----------------------------------------------------------------------===//
+ 
+ // UNSUPPORTED: c++03, c++11, c++14
+-// XFAIL: LIBCXX-PICOLIBC-FIXME
++// XFAIL: !has-64-bit-atomics 
+ 
+ // <atomic>
+ //
+-- 
+2.34.1
+