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[CMake] Add -O1 in debug builds with LLVM_USE_SANITIZER

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llvm-svn: 189747
This commit is contained in:
Alexey Samsonov 2013-09-02 09:15:01 +00:00
parent 6009a9c268
commit 2c12d4855f
1 changed files with 4 additions and 0 deletions
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4
cmake/modules/HandleLLVMOptions.cmake
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@ -240,6 +240,10 @@ macro(append_common_sanitizer_flags)
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.