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[CMake] Use -O0 for unittests under full LTO as well 

We already use -O0 for unittests under ThinLTO, do the same for full LTO
where the compile time costs to runtime benefits tradeoff is even worse.

Differential Revision: https://reviews.llvm.org/D102718
This commit is contained in:
Petr Hosek 2021-05-18 12:59:57 -07:00
parent ac2226b0f5
commit 832f7af283
1 changed files with 2 additions and 2 deletions
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4
llvm/cmake/modules/AddLLVM.cmake
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@ -1439,8 +1439,8 @@ function(add_unittest test_suite test_name)
list(APPEND LLVM_LINK_COMPONENTS Support) # gtest needs it for raw_ostream
add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
# The runtime benefits of ThinLTO don't outweight the compile time costs for tests.
if(uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
# The runtime benefits of LTO don't outweight the compile time costs for tests.
if(LLVM_ENABLE_LTO)
if((UNIX OR MINGW) AND LLVM_USE_LINKER STREQUAL "lld")
set_property(TARGET ${test_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--lto-O0")