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ggml-cpu: detect correct cpu flags for arm64 (#16229) #16239

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ggml-cpu: detect correct cpu flags for arm64 (#16229) #16239

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8 changes: 4 additions & 4 deletions ggml/src/ggml-cpu/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -118,18 +118,18 @@ function(ggml_add_cpu_backend_variant_impl tag_name)
# so we check for them manually and enable them if available

execute_process(
COMMAND ${CMAKE_C_COMPILER} -mcpu=native -E -v -
COMMAND ${CMAKE_C_COMPILER} -march=native -E -v -
INPUT_FILE "/dev/null"
OUTPUT_QUIET
ERROR_VARIABLE ARM_MCPU
RESULT_VARIABLE ARM_MCPU_RESULT
)
if (NOT ARM_MCPU_RESULT)
string(REGEX MATCH "-mcpu=[^ ']+" ARM_MCPU_FLAG "${ARM_MCPU}")
string(REGEX MATCH "-march=[^ ']+" ARM_MCPU_FLAG "${ARM_MCPU}")
endif()
if ("${ARM_MCPU_FLAG}" STREQUAL "")
set(ARM_MCPU_FLAG -mcpu=native)
message(STATUS "ARM -mcpu not found, -mcpu=native will be used")
set(ARM_MCPU_FLAG -march=native)
message(STATUS "ARM -mcpu not found, -march=native will be used")
endif()

include(CheckCXXSourceRuns)
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