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cmake: test for lsx and lasx intrinsics for loongarch

This commit is contained in:
Anonymous Maarten 2022-11-25 02:18:16 +01:00 committed by Anonymous Maarten
parent d1f423d9db
commit 4574c16178
2 changed files with 38 additions and 0 deletions
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36
CMakeLists.txt
View File

@ -139,6 +139,7 @@ check_cpu_architecture(x86 SDL_CPU_X86)
check_cpu_architecture(x64 SDL_CPU_X64)
check_cpu_architecture(arm32 SDL_CPU_ARM32)
check_cpu_architecture(arm64 SDL_CPU_ARM64)
check_cpu_architecture(loongarch64 SDL_CPU_LOONGARCH64)
# Check for 64 or 32 bit
set(SIZEOF_VOIDP ${CMAKE_SIZEOF_VOID_P})
@ -447,6 +448,8 @@ dep_option(SDL_3DNOW "Use 3Dnow! MMX assembly routines" ON "SDL_AS
dep_option(SDL_ALTIVEC "Use Altivec assembly routines" ON "SDL_ASSEMBLY" OFF)
dep_option(SDL_ARMSIMD "Use SIMD assembly blitters on ARM" OFF "SDL_ASSEMBLY;SDL_CPU_ARM32" OFF)
dep_option(SDL_ARMNEON "Use NEON assembly blitters on ARM" OFF "SDL_ASSEMBLY;SDL_CPU_ARM32" OFF)
dep_option(SDL_LSX "Use LSX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
dep_option(SDL_LASX "Use LASX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
set_option(SDL_LIBC "Use the system C library" ${OPT_DEF_LIBC})
set_option(SDL_GCC_ATOMICS "Use gcc builtin atomics" ${OPT_DEF_GCC_ATOMICS})
@ -903,6 +906,39 @@ if(SDL_ASSEMBLY)
endif()
endif()
if(SDL_LSX)
cmake_push_check_state()
list(APPEND CMAKE_REQUIRED_FLAGS "-mlsx")
check_c_source_compiles([[
#ifndef __loongarch_sx
#error Assembler CPP flag not enabled
#endif
]] CPU_HAS_LSX)
check_include_file("lsxintrin.h" HAVE_LSXINTRIN_H)
cmake_pop_check_state()
if(CPU_HAS_LSX AND HAVE_LSXINTRIN_H)
list(APPEND EXTRA_CFLAGS "-mlsx")
set(HAS_LSX TRUE)
endif()
endif()
if(SDL_LASX)
cmake_push_check_state()
list(APPEND CMAKE_REQUIRED_FLAGS "-mlasx")
check_c_source_compiles([[
#ifndef __loongarch_asx
#error Assembler CPP flag not enabled
#endif
]] CPU_HAS_LASX)
check_include_file("lasxintrin.h" HAVE_LASXINTRIN_H)
cmake_pop_check_state()
if(CPU_HAS_LASX AND HAVE_LASXINTRIN_H)
list(APPEND EXTRA_CFLAGS "-mlasx")
set(HAS_LASX TRUE)
endif()
endif()
if(SDL_ARMSIMD)
set(ORIG_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -x assembler-with-cpp")

2
cmake/CheckCPUArchitecture.cmake
View File

@ -32,6 +32,8 @@ function(check_cpu_architecture ARCH VARIABLE)
_internal_check_cpu_architecture("defined(__arm__) || defined(_M_ARM)" arm32 ${VARIABLE})
elseif(ARCH STREQUAL "arm64")
_internal_check_cpu_architecture("defined(__aarch64__) || defined(_M_ARM64)" arm64 ${VARIABLE})
elseif(ARCH STREQUAL "loongarch64")
_internal_check_cpu_architecture("defined(__loongarch64)" loongarch64 ${VARIABLE})
else()
message(WARNING "Unknown CPU architectures (${ARCH}).")
set(${VARIABLE} FALSE)