Make AVX2 pass TSAN

[alexxy/gromacs.git] / cmake / gmxManageSimd.cmake

diff --git a/cmake/gmxManageSimd.cmake b/cmake/gmxManageSimd.cmake
index f7ffc9192d1bdf3b72a2a2fa122ba274a221e268..5a6d91a0d872ba520ffd28e37d18e71a66fc6eea 100644 (file)
--- a/cmake/gmxManageSimd.cmake
+++ b/cmake/gmxManageSimd.cmake
@@ -404,5 +404,10 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     endif()
 endif()
 
+string(TOUPPER "${CMAKE_BUILD_TYPE}" _cmake_build_type)
+if (_cmake_build_type STREQUAL "TSAN" AND NOT (GMX_SIMD_ACTIVE STREQUAL "NONE" OR GMX_SIMD_ACTIVE STREQUAL "REFERENCE" OR GMX_SIMD_ACTIVE MATCHES "AVX_512" OR GMX_SIMD_ACTIVE STREQUAL AVX2_256))
+   message(WARNING "TSAN is only tested with SIMD None, Reference, AVX2_256, and AVX_512. It is known to detect (harmless) memory races with SSE and AVX.")
+endif()
+
 endmacro()