[PATCH] D159521: [BOLT][runtime] Test for outline-atomics support

[Vladislav Khmelevsky via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG80c01dd626e0: [BOLT][runtime] Test for outline-atomics support (authored by yota9).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D159521/new/

https://reviews.llvm.org/D159521

Files:
  bolt/runtime/CMakeLists.txt


Index: bolt/runtime/CMakeLists.txt
===================================================================
--- bolt/runtime/CMakeLists.txt
+++ bolt/runtime/CMakeLists.txt
@@ -1,4 +1,5 @@
 cmake_minimum_required(VERSION 3.20.0)
+include(CheckCXXCompilerFlag)
 include(CheckIncludeFiles)
 include(GNUInstallDirs)
 
@@ -33,7 +34,10 @@
   set(BOLT_RT_FLAGS ${BOLT_RT_FLAGS} "-mno-sse")
 endif()
 if (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
-  set(BOLT_RT_FLAGS ${BOLT_RT_FLAGS} "-mno-outline-atomics")
+  check_cxx_compiler_flag("-mno-outline-atomics" CXX_SUPPORTS_OUTLINE_ATOMICS)
+  if (CXX_SUPPORTS_OUTLINE_ATOMICS)
+    set(BOLT_RT_FLAGS ${BOLT_RT_FLAGS} "-mno-outline-atomics")
+  endif()
 endif()
 
 # Don't let the compiler think it can create calls to standard libs


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