Fix #9966: workaround a VS2022 optimisation bug (#10029)

2 years ago · 57717a20d3
parent 64453cb134
commit 57717a20d3
1 changed files with 5 additions and 0 deletions
--- a/cmake/CompileFlags.cmake
+++ b/cmake/CompileFlags.cmake
@ -56,6 +56,11 @@ macro(compile_flags)

    if(MSVC)
        add_compile_options(/W3)
+        if(MSVC_VERSION GREATER 1929)
+            # Starting with version 19.30, there is an optimisation bug, see #9966 for details
+            # This flag disables the broken optimisation to work around the bug
+            add_compile_options(/d2ssa-rse-)
+        endif()
    elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
        add_compile_options(
            -W