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| author | Shauren <shauren.trinity@gmail.com> | 2022-02-11 22:23:42 +0100 |
|---|---|---|
| committer | Shauren <shauren.trinity@gmail.com> | 2022-02-11 22:23:42 +0100 |
| commit | fe35971d2f240898e01a38752c14398ebee2ac7a (patch) | |
| tree | 76622559c3d4f9a2b8eee729bfa9b52adbd77ac9 /cmake/compiler/clang | |
| parent | df48af798b9e2d86d8b34052c348e3831d28c444 (diff) | |
Build: Instantiate templates during PCH generation with clang 11+ (this should make PCH more effective in reducing compile times, closer to MSVC)
Diffstat (limited to 'cmake/compiler/clang')
| -rw-r--r-- | cmake/compiler/clang/settings.cmake | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cmake/compiler/clang/settings.cmake b/cmake/compiler/clang/settings.cmake index 1fe89542a84..2b6e998d854 100644 --- a/cmake/compiler/clang/settings.cmake +++ b/cmake/compiler/clang/settings.cmake @@ -150,3 +150,13 @@ if(BUILD_SHARED_LIBS) message(STATUS "Clang: Disallow undefined symbols") endif() + +# speedup PCH builds by forcing template instantiations during PCH generation +set(CMAKE_REQUIRED_FLAGS "-fpch-instantiate-templates") +check_cxx_source_compiles("int main() { return 0; }" CLANG_HAS_PCH_INSTANTIATE_TEMPLATES) +unset(CMAKE_REQUIRED_FLAGS) +if(CLANG_HAS_PCH_INSTANTIATE_TEMPLATES) + target_compile_options(trinity-compile-option-interface + INTERFACE + -fpch-instantiate-templates) +endif() |