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Fix compiler check for ARM64 SME support in CMake builds #5797

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Fix compiler check for ARM64 SME support in CMake builds #5797

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3cde598
Correct file extension of assembly testcase for SME support
martin-frbg May 4, 2026
2fd0e24
Merge branch 'OpenMathLib:develop' into issue5713-2
martin-frbg May 5, 2026
d4d02fe
Separate LLVM prerequisites for ARMV9SME and VORTEXM4
martin-frbg May 6, 2026
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8 changes: 6 additions & 2 deletions cmake/arch.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -48,9 +48,13 @@ if (DYNAMIC_ARCH)
if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER_EQUAL 11) # SVE ACLE supported in LLVM >= 11
set(DYNAMIC_CORE ${DYNAMIC_CORE} NEOVERSEV1 NEOVERSEN2 ARMV8SVE A64FX)
endif ()
if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER_EQUAL 17) # SME ACLE supported in LLVM >= 17
set(DYNAMIC_CORE ${DYNAMIC_CORE} ARMV9SME)
endif()

if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER_EQUAL 19 OR (${CMAKE_C_COMPILER_ID} MATCHES AppleClang AND ${CMAKE_C_COMPILER_VERSION} VERSION_GREATER_EQUAL 17) ) # SME ACLE supported in LLVM >= 19 and AppleClang >= 17
set(DYNAMIC_CORE ${DYNAMIC_CORE} ARMV9SME VORTEXM4)
if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER_EQUAL 19 OR (${CMAKE_C_COMPILER_ID} MATCHES AppleClang AND ${CMAKE_C_COMPILER_VERSION} VERSION_GREATER_EQUAL 17) ) # SME w/out SVE supported in LLVM >= 19 and AppleClang >= 17
set(DYNAMIC_CORE ${DYNAMIC_CORE} VORTEXM4)
endif()
endif()
endif ()
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6 changes: 3 additions & 3 deletions cmake/system_check.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -157,12 +157,12 @@ endif()
endif()

if (NOT NO_SME)
file(WRITE ${PROJECT_BINARY_DIR}/sme.c ".text \n.global sme_test\n\nsme_test:\nsmstart\nsmstop\nret\n")
execute_process(COMMAND ${CMAKE_C_COMPILER} -march=armv9-a+sve2+sme -c -v -o ${PROJECT_BINARY_DIR}/sme.o ${PROJECT_BINARY_DIR}/sme.c OUTPUT_QUIET ERROR_QUIET RESULT_VARIABLE NO_SME)
file(WRITE ${PROJECT_BINARY_DIR}/sme.S ".text \n.global sme_test\n\nsme_test:\nsmstart\nsmstop\nret\n")
execute_process(COMMAND ${CMAKE_C_COMPILER} -march=armv9-a+sve2+sme -c -v -o ${PROJECT_BINARY_DIR}/sme.o ${PROJECT_BINARY_DIR}/sme.S OUTPUT_QUIET ERROR_QUIET RESULT_VARIABLE NO_SME)
if (NO_SME EQUAL 1)
set (CCOMMON_OPT "${CCOMMON_OPT} -DNO_SME")
endif()
file(REMOVE "${PROJECT_BINARY_DIR}/sme.c" "${PROJECT_BINARY_DIR}/sme.o")
file(REMOVE "${PROJECT_BINARY_DIR}/sme.S" "${PROJECT_BINARY_DIR}/sme.o")
endif()
endif()

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