commit b775f2f39c428d6a8a06e81c51b0b7cf51330f50
author Alexey Samsonov <samsonov@google.com> Mon Sep 02 09:15:01 2013 +0000
committer Alexey Samsonov <samsonov@google.com> Mon Sep 02 09:15:01 2013 +0000
tree e47db8c9d71837b887d5978710fce08dfe2045fe
parent 69c474ffa8a4b0186067e39d338a165d4165af2b

[CMake] Add -O1 in debug builds with LLVM_USE_SANITIZER

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189747 91177308-0d34-0410-b5e6-96231b3b80d8

cmake/modules/HandleLLVMOptions.cmake

diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index b49d649..4d56438 100644
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -240,6 +240,10 @@
       NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELWITHDEBINFO")
     add_flag_if_supported("-gline-tables-only")
   endif()
+  # Use -O1 even in debug mode, otherwise sanitizers slowdown is too large.
+  if (uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
+    add_flag_if_supported("-O1")
+  endif()
 endmacro()
 
 # Turn on sanitizers if necessary.