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cmake: Factor out CPU architecture detection (llama/13883)

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* cmake: Define function for querying architecture

The tests and results match exactly those of src/CMakeLists.txt

* Switch arch detection over to new function
This commit is contained in:
Christian Kastner
2025-05-29 12:50:25 +02:00
committed by Georgi Gerganov
parent ccfaac2bb0
commit 1d7b3c79f4
3 changed files with 34 additions and 17 deletions
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25
ggml/cmake/common.cmake
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@ -24,3 +24,28 @@ function(ggml_get_flags CCID CCVER)
set(GF_C_FLAGS ${C_FLAGS} PARENT_SCOPE)
set(GF_CXX_FLAGS ${CXX_FLAGS} PARENT_SCOPE)
endfunction()
function(ggml_get_system_arch)
if (CMAKE_OSX_ARCHITECTURES STREQUAL "arm64" OR
CMAKE_GENERATOR_PLATFORM_LWR STREQUAL "arm64" OR
(NOT CMAKE_OSX_ARCHITECTURES AND NOT CMAKE_GENERATOR_PLATFORM_LWR AND
CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm.*|ARM64)$"))
set(GGML_SYSTEM_ARCH "ARM" PARENT_SCOPE)
elseif (CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64" OR
CMAKE_GENERATOR_PLATFORM_LWR MATCHES "^(x86_64|i686|amd64|x64|win32)$" OR
(NOT CMAKE_OSX_ARCHITECTURES AND NOT CMAKE_GENERATOR_PLATFORM_LWR AND
CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86_64|i686|AMD64|amd64)$"))
set(GGML_SYSTEM_ARCH "x86" PARENT_SCOPE)
elseif ("${CMAKE_SYSTEM_PROCESSOR} " STREQUAL "ppc64le " OR
"${CMAKE_SYSTEM_PROCESSOR} " STREQUAL "powerpc ")
set(GGML_SYSTEM_ARCH "PowerPC" PARENT_SCOPE)
elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "loongarch64")
set(GGML_SYSTEM_ARCH "loongarch64" PARENT_SCOPE)
elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "riscv64")
set(GGML_SYSTEM_ARCH "riscv64" PARENT_SCOPE)
elseif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "s390x")
set(GGML_SYSTEM_ARCH "s390x" PARENT_SCOPE)
else()
set(GGML_SYSTEM_ARCH "UNKNOWN" PARENT_SCOPE)
endif()
endfunction()