[PATCH] D69444: [Support] Check for atomics64 when deciding if '-latomic' is needed

[Gokturk Yuksek via Phabricator via llvm-commits]

gokturk created this revision.
gokturk added reviewers: beanz, compnerd.
Herald added subscribers: llvm-commits, jfb, hiraditya, mgorny.
Herald added a project: LLVM.

The CheckAtomic module performs two tests to determine if passing
'-latomic' to the linker is required: one for 64-bit atomics, and
another for non-64-bit atomics. Include the missing check for 64-bit
atomics.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D69444

Files:
  llvm/lib/Support/CMakeLists.txt


Index: llvm/lib/Support/CMakeLists.txt
===================================================================
--- llvm/lib/Support/CMakeLists.txt
+++ llvm/lib/Support/CMakeLists.txt
@@ -26,7 +26,7 @@
       set(system_libs ${system_libs} ${TERMINFO_LIBS})
     endif()
   endif()
-  if( LLVM_ENABLE_THREADS AND HAVE_LIBATOMIC )
+  if( LLVM_ENABLE_THREADS AND (HAVE_LIBATOMIC OR HAVE_CXX_LIBATOMICS64) )
     set(system_libs ${system_libs} atomic)
   endif()
   set(system_libs ${system_libs} ${LLVM_PTHREAD_LIB})


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D69444.226483.patch
Type: text/x-patch
Size: 510 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20191025/0a2bc6d1/attachment.bin>