ggml: Add Apple support for GGML_CPU_ALL_VARIANTS (#14258)

Author: chaxu01

ggml/src/CMakeLists.txt

@@ -330,6 +330,10 @@ if (GGML_CPU_ALL_VARIANTS)
             ggml_add_cpu_backend_variant(android_armv8.2_1    DOTPROD)
             ggml_add_cpu_backend_variant(android_armv8.2_2    DOTPROD FP16_VECTOR_ARITHMETIC)
             ggml_add_cpu_backend_variant(android_armv8.6_1    DOTPROD FP16_VECTOR_ARITHMETIC MATMUL_INT8)
+        elseif (APPLE)
+            ggml_add_cpu_backend_variant(apple_m1             DOTPROD)
+            ggml_add_cpu_backend_variant(apple_m2_m3          DOTPROD MATMUL_INT8)
+            ggml_add_cpu_backend_variant(apple_m4             DOTPROD MATMUL_INT8 NOSVE SME)
         else()
             message(FATAL_ERROR "Unsupported ARM target OS: ${CMAKE_SYSTEM_NAME}")
         endif()

ggml/src/ggml-cpu/CMakeLists.txt

@@ -190,6 +190,9 @@ function(ggml_add_cpu_backend_variant_impl tag_name)
                         set(ARCH_TAGS "${ARCH_TAGS}+sve2")
                         list(APPEND ARCH_DEFINITIONS GGML_USE_SVE2)
                     endif()
+                    if (GGML_INTERNAL_NOSVE)
+                        set(ARCH_TAGS "${ARCH_TAGS}+nosve")
+                    endif()
                     if (GGML_INTERNAL_SME)
                         set(ARM_MCPU "armv9.2-a")
                         set(ARCH_TAGS "${ARCH_TAGS}+sme")