ba7c62eed5
In qmake there are at least 2 things to know regarding
sub-architectures and instruction sets.
Which instruction sets does the compiler know to compile for,
represented by the various config.tests and features in
qtbase/configure.json.
And which instructions sets are enabled by the compiler by default,
represented by the configure.json "architecture" test and accessed
via QT_CPU_FEATURES.$$arch qmake argument.
Before this patch there was some mishandling of the above concepts
in CMake code.
The former can now be checked in CMake with via TEST_subarch_foo and
QT_FEATURE_foo (where foo is sse2, etc).
The latter can now be checked by
TEST_arch_${TEST_architecture_arch}_subarch_foo
(where foo is sse2, etc and the main arch is dynamyicall evaluated).
The configurejson2cmake script was adjusted to take care of the above
changes, and the cmake files were regenerated as well.
Change-Id: Ifbf558242e320cafae50da388eee56fa5de2a50c
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
24 lines
1.0 KiB
CMake
24 lines
1.0 KiB
CMake
cmake_minimum_required(VERSION 3.14.0)
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project(x86_simd LANGUAGES CXX)
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include(../../cmake/QtPlatformSupport.cmake)
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include(../../cmake/QtCompilerOptimization.cmake)
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# FIXME: Make the this project handle a list of SIMD entries.
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# FIXME: Make this project handle appending of the cflags (similar to the qmake project).
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# This is needed for the x86SimdAlways configure test (
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# aka we test to see if setting no SIMD (-msse2) cflags at all, will result in their implicit
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# addition by the compiler).
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string(TOUPPER "${SIMD}" upper_simd)
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if(NOT DEFINED "QT_CFLAGS_${upper_simd}")
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# Don't use CMake error() because a configure error also fails the try_compile() call.
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# Instead use a compile flag that doesn't exist to force a compiler error.
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set(QT_CFLAGS_${upper_simd} "--qt-cflags-not-found")
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endif()
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add_executable("SimdTest${SIMD}")
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target_sources("SimdTest${SIMD}" PRIVATE main.cpp)
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target_compile_options("SimdTest${SIMD}" PRIVATE ${QT_CFLAGS_${upper_simd}})
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target_compile_definitions("SimdTest${SIMD}" PRIVATE QT_COMPILER_SUPPORTS_${upper_simd})
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