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Merge topic 'swift-compilation-mode'

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0f80101b73 Tests: Update Swift tests to use CMP0157 NEW behavior
c1d787e473 Swift: Add abstraction for compilation mode
c39384f540 Tests: Simplify RunCMake.Swift conditions to enable use of Swift

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !8918
This commit is contained in:
Brad King
2023-11-19 16:47:22 +00:00
committed by Kitware Robot
parent 67be468693 0f80101b73
commit 1f7a653e90
29 changed files with 364 additions and 30 deletions
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Modules/CMakeSwiftInformation.cmake
+29 -17
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@@ -68,30 +68,42 @@ set(CMAKE_Swift_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDLL -libc MD)
set(CMAKE_Swift_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDebug -libc MTd)
set(CMAKE_Swift_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDebugDLL -libc MDd)
set(CMAKE_Swift_FLAGS_DEBUG_INIT "-Onone -g")
set(CMAKE_Swift_FLAGS_RELEASE_INIT "-O")
set(CMAKE_Swift_FLAGS_RELWITHDEBINFO_INIT "-O -g")
set(CMAKE_Swift_FLAGS_MINSIZEREL_INIT "-Osize")
if(CMAKE_GENERATOR STREQUAL "Xcode")
string(APPEND CMAKE_Swift_FLAGS_DEBUG_INIT " ${CMAKE_Swift_FLAGS_DEBUG_LINKER_FLAGS}")
string(APPEND CMAKE_Swift_FLAGS_RELWITHDEBINFO_INIT " ${CMAKE_Swift_FLAGS_RELWITHDEBINFO_LINKER_FLAGS}")
endif()
# Warns if unset and uses old policy.
# Old policy flag-smashes the wmo and incremental flags onto the compiler flags.
# New policy respects the Swift_COMPILATION_MODE target property to add
# incremental and wholemodule optimization flags as appropriate.
cmake_policy(GET CMP0157 __SWIFT_COMP_MODE_CMP0157)
if(__SWIFT_COMP_MODE_CMP0157 STREQUAL "NEW")
set(CMAKE_Swift_COMPILATION_MODE_DEFAULT "incremental")
else()
# Xcode has a separate Xcode project option (SWIFT_COMPILATION_MODE) used to set
# whether compiling with whole-module optimizations or incrementally. Setting
# these options here will have no effect when compiling with the built-in driver,
# and will explode violently, leaving build products in the source directory, when
# using the old swift driver.
set(CMAKE_Swift_FLAGS_DEBUG_INIT "-Onone -g ${CMAKE_Swift_FLAGS_DEBUG_LINKER_FLAGS}")
set(CMAKE_Swift_FLAGS_RELEASE_INIT "-O")
set(CMAKE_Swift_FLAGS_RELWITHDEBINFO_INIT "-O -g ${CMAKE_Swift_FLAGS_RELWITHDEBINFO_LINKER_FLAGS}")
set(CMAKE_Swift_FLAGS_MINSIZEREL_INIT "-Osize")
else()
set(CMAKE_Swift_FLAGS_DEBUG_INIT "-Onone -g -incremental")
set(CMAKE_Swift_FLAGS_RELEASE_INIT "-O")
set(CMAKE_Swift_FLAGS_RELWITHDEBINFO_INIT "-O -g")
set(CMAKE_Swift_FLAGS_MINSIZEREL_INIT "-Osize")
# Enable Whole Module Optimization by default unless the old
# C++ driver is being used, which behaves differently under WMO.
if(NOT CMAKE_Swift_COMPILER_USE_OLD_DRIVER)
string(APPEND CMAKE_Swift_FLAGS_RELEASE_INIT " -wmo")
string(APPEND CMAKE_Swift_FLAGS_RELWITHDEBINFO_INIT " -wmo")
string(APPEND CMAKE_Swift_FLAGS_MINSIZEREL_INIT " -wmo")
# using the old swift driver. Don't append `-incremental` or `-wmo` to the
# flags in the Xcode generator.
if(NOT CMAKE_GENERATOR STREQUAL "Xcode")
# Enable Whole Module Optimization by default unless the old
# C++ driver is being used, which behaves differently under WMO.
if(NOT CMAKE_Swift_COMPILER_USE_OLD_DRIVER)
string(APPEND CMAKE_Swift_FLAGS_RELEASE_INIT " -wmo")
string(APPEND CMAKE_Swift_FLAGS_RELWITHDEBINFO_INIT " -wmo")
string(APPEND CMAKE_Swift_FLAGS_MINSIZEREL_INIT " -wmo")
endif()
string(APPEND CMAKE_Swift_FLAGS_DEBUG_INIT " -incremental")
endif()
endif()
unset(__SWIFT_COMP_MODE_CMP0157)
if(CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF")
if(NOT DEFINED CMAKE_Swift_LINK_WHAT_YOU_USE_FLAG)