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| author | Brad King <brad.king@kitware.com> | 2017-06-14 14:12:48 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2017-06-14 14:36:57 (GMT) |
| commit | ba247ccabab05c0aad4fe7f56dd020bfa8ff4583 (patch) | |
| tree | 259898e83b41d70b454287d01e88923ecb1bbd4e /Modules/Compiler | |
| parent | d025faf436c86ee9cc033fbb324a9bc2c18757fa (diff) | |
| download | CMake-ba247ccabab05c0aad4fe7f56dd020bfa8ff4583.zip CMake-ba247ccabab05c0aad4fe7f56dd020bfa8ff4583.tar.gz CMake-ba247ccabab05c0aad4fe7f56dd020bfa8ff4583.tar.bz2 | |
IPO: Consider support for each language separately
We only define `INTERPROCEDURAL_OPTIMIZATION` behavior for C, CXX, and
Fortran languages. Do not try to enable support for other languages.
Furthermore, each language builds with a different compiler, so check
for support by CMake and the compiler for each language independently.
Fixes: #16944
Diffstat (limited to 'Modules/Compiler')
| -rw-r--r-- | Modules/Compiler/Clang.cmake | 4 | ||||
| -rw-r--r-- | Modules/Compiler/GNU.cmake | 6 | ||||
| -rw-r--r-- | Modules/Compiler/QCC.cmake | 4 |
3 files changed, 7 insertions, 7 deletions
diff --git a/Modules/Compiler/Clang.cmake b/Modules/Compiler/Clang.cmake index ef7ff2e..7d476f9 100644 --- a/Modules/Compiler/Clang.cmake +++ b/Modules/Compiler/Clang.cmake @@ -30,8 +30,8 @@ else() set(CMAKE_${lang}_COMPILE_OPTIONS_EXTERNAL_TOOLCHAIN "--gcc-toolchain=") endif() - set(_CMAKE_IPO_SUPPORTED_BY_CMAKE YES) - set(_CMAKE_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES) + set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES) + set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES) string(COMPARE EQUAL "${CMAKE_${lang}_COMPILER_ID}" "AppleClang" __is_apple_clang) diff --git a/Modules/Compiler/GNU.cmake b/Modules/Compiler/GNU.cmake index e2739a8..675e505 100644 --- a/Modules/Compiler/GNU.cmake +++ b/Modules/Compiler/GNU.cmake @@ -48,14 +48,14 @@ macro(__compiler_gnu lang) set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-isystem ") endif() - set(_CMAKE_IPO_SUPPORTED_BY_CMAKE YES) - set(_CMAKE_IPO_MAY_BE_SUPPORTED_BY_COMPILER NO) + set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES) + set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER NO) # '-flto' introduced since GCC 4.5: # * https://gcc.gnu.org/onlinedocs/gcc-4.4.7/gcc/Option-Summary.html (no) # * https://gcc.gnu.org/onlinedocs/gcc-4.5.4/gcc/Option-Summary.html (yes) if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.5) - set(_CMAKE_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES) + set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES) set(__lto_flags -flto) if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.7) diff --git a/Modules/Compiler/QCC.cmake b/Modules/Compiler/QCC.cmake index 695a138..0da7050 100644 --- a/Modules/Compiler/QCC.cmake +++ b/Modules/Compiler/QCC.cmake @@ -13,8 +13,8 @@ macro(__compiler_qcc lang) set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-Wp,-isystem,") set(CMAKE_DEPFILE_FLAGS_${lang} "-Wc,-MD,<DEPFILE>,-MT,<OBJECT>,-MF,<DEPFILE>") - set(_CMAKE_IPO_SUPPORTED_BY_CMAKE NO) - set(_CMAKE_IPO_MAY_BE_SUPPORTED_BY_COMPILER NO) + set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE NO) + set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER NO) unset(CMAKE_${lang}_COMPILE_OPTIONS_IPO) unset(CMAKE_${lang}_ARCHIVE_CREATE_IPO) |