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CMake: Port the 'ltcg' feature

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This maps to the CMake variable CMAKE_INTERPROCEDURAL_OPTIMIZATION.

Change-Id: Id0ce48f176b95c27e74ab80276e89503b1660f79
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This commit is contained in:
Joerg Bornemann 2020-04-17 08:39:47 +02:00
parent 34124a4b0b
commit 8a5ffc4f73
2 changed files with 10 additions and 1 deletions
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6
configure.cmake
View File

@ -509,6 +509,12 @@ qt_feature("precompile_header"
CONDITION BUILD_WITH_PCH CONDITION BUILD_WITH_PCH
) )
qt_feature_config("precompile_header" QMAKE_PRIVATE_CONFIG) qt_feature_config("precompile_header" QMAKE_PRIVATE_CONFIG)
qt_feature("ltcg"
LABEL "Using LTCG"
AUTODETECT 1
CONDITION CMAKE_INTERPROCEDURAL_OPTIMIZATION
)
qt_feature_config("ltcg" QMAKE_PRIVATE_CONFIG)
qt_feature("reduce_exports" PRIVATE qt_feature("reduce_exports" PRIVATE
LABEL "Reduce amount of exported symbols" LABEL "Reduce amount of exported symbols"
CONDITION NOT WIN32 AND CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY CONDITION NOT WIN32 AND CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY

5
util/cmake/configurejson2cmake.py
View File

@ -852,7 +852,10 @@ def get_feature_mapping():
"condition": "NOT QT_FEATURE_icu AND QT_FEATURE_textcodec AND ( TEST_posix_iconv OR TEST_sun_iconv )" "condition": "NOT QT_FEATURE_icu AND QT_FEATURE_textcodec AND ( TEST_posix_iconv OR TEST_sun_iconv )"
}, },
"incredibuild_xge": None, "incredibuild_xge": None,
"ltcg": None, "ltcg": {
"autoDetect": "1",
"condition": "CMAKE_INTERPROCEDURAL_OPTIMIZATION"
},
"msvc_mp": None, "msvc_mp": None,
"optimize_debug": None, "optimize_debug": None,
"optimize_size": None, "optimize_size": None,