[PATCH] D68964: cmake/modules/CheckAtomic.cmake: catch false positives in RISC-V

[Luís Marques via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rGcef85193b2cc: [CMake] CheckAtomic.cmake: catch false positives in RISC-V (authored by gokturk, committed by luismarques).
Herald added subscribers: luismarques, sameer.abuasal, Jim.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68964/new/

https://reviews.llvm.org/D68964

Files:
  llvm/cmake/modules/CheckAtomic.cmake


Index: llvm/cmake/modules/CheckAtomic.cmake
===================================================================
--- llvm/cmake/modules/CheckAtomic.cmake
+++ llvm/cmake/modules/CheckAtomic.cmake
@@ -12,8 +12,12 @@
   CHECK_CXX_SOURCE_COMPILES("
 #include <atomic>
 std::atomic<int> x;
+std::atomic<short> y;
+std::atomic<char> z;
 int main() {
-  return x;
+  ++z;
+  ++y;
+  return ++x;
 }
 " ${varname})
   set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})


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