CMAKE: apply -O3 for mingw clang

Differential Revision: https://reviews.llvm.org/D41596 llvm-svn: 324570
2018-02-08 07:13:17 +00:00 · 2018-02-08 07:13:17 +00:00 · 0b75eee4d2
parent 6d9f750dec
commit 0b75eee4d2
1 changed files with 1 additions and 1 deletions
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@ -834,7 +834,7 @@ endif()
 include(AddLLVM)
 include(TableGen)

-if( MINGW )
+if( MINGW AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
  # People report that -O3 is unreliable on MinGW. The traditional
  # build also uses -O2 for that reason:
  llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")