CPU: fix compile error on macOS x86

Author: atafra

devices/cpu/CMakeLists.txt

@@ -28,7 +28,11 @@ endif()
 
 # ISPC
 if(OIDN_ARCH STREQUAL "X64")
-  set(OIDN_ISPC_TARGET_LIST sse4.1-i32x8 avx2-i32x8 avx512skx-x16 avx512gnr-x16)
+  if(APPLE)
+    set(OIDN_ISPC_TARGET_LIST sse4.1-i32x8 avx2-i32x8 avx512skx-x16)
+  else()
+    set(OIDN_ISPC_TARGET_LIST sse4.1-i32x8 avx2-i32x8 avx512skx-x16 avx512gnr-x16)
+  endif()
 elseif(OIDN_ARCH STREQUAL "ARM64")
   set(OIDN_ISPC_TARGET_LIST neon-i32x8)
 endif()
@@ -97,7 +101,7 @@ else()
     cpu_conv.cpp
   )
 
-  if(OIDN_ARCH STREQUAL "X64")
+  if(OIDN_ARCH STREQUAL "X64" AND NOT APPLE)
     list(APPEND OIDN_CPU_SOURCES
       cpu_conv_amx.h
       cpu_conv_amx.cpp
@@ -138,7 +142,7 @@ ispc_target_add_sources(OpenImageDenoise_device_cpu
   TARGET_LIST ${OIDN_ISPC_TARGET_LIST}
 )
 
-if(OIDN_ARCH STREQUAL "X64")
+if(OIDN_ARCH STREQUAL "X64" AND NOT APPLE)
   ispc_target_add_sources(OpenImageDenoise_device_cpu
     cpu_input_process_f16.ispc
     cpu_output_process_f16.ispc
@@ -168,6 +172,18 @@ elseif(OIDN_ARCH STREQUAL "ARM64")
     cpu_upsample_f16.ispc
     TARGET_LIST neon-i16x16
   )
+else()
+  ispc_target_add_sources(OpenImageDenoise_device_cpu
+    cpu_input_process_f16.ispc
+    cpu_output_process_f16.ispc
+    TARGET_LIST avx512skx-x16
+  )
+
+  ispc_target_add_sources(OpenImageDenoise_device_cpu
+    cpu_pool_f16.ispc
+    cpu_upsample_f16.ispc
+    TARGET_LIST avx512skx-x32
+  )
 endif()
 
 target_link_libraries(OpenImageDenoise_device_cpu PRIVATE OpenImageDenoise_core ${CMAKE_THREAD_LIBS_INIT} TBB::tbb)

devices/cpu/cpu_common.cpp

@@ -4,7 +4,7 @@
 #include "cpu_common.h"
 #if !defined(OIDN_BNNS)
   #include "cpu_conv_ispc.h"
-  #if defined(OIDN_ARCH_X64)
+  #if defined(OIDN_ARCH_X64) && !defined(__APPLE__)
     #include "cpu_conv_amx_ispc.h"
   #endif
 #endif
@@ -125,7 +125,7 @@ OIDN_NAMESPACE_BEGIN
     return acc;
   }
 
-#if defined(OIDN_ARCH_X64)
+#if defined(OIDN_ARCH_X64) && !defined(__APPLE__)
   Tensor::operator ispc::TensorAccessor4D_OIhwPoQiRoSi()
   {
     if (getRank() != 4 || layout != TensorLayout::OIhw2o16i16o2i)

devices/cpu/cpu_engine.cpp

@@ -5,7 +5,7 @@
 #include "cpu_engine.h"
 #if !defined(OIDN_BNNS)
   #include "cpu_conv.h"
-  #if defined(OIDN_ARCH_X64)
+  #if defined(OIDN_ARCH_X64) && !defined(__APPLE__)
     #include "cpu_conv_amx.h"
   #endif
 #endif
@@ -78,7 +78,7 @@ OIDN_NAMESPACE_BEGIN
 #if !defined(OIDN_BNNS)
   Ref<Conv> CPUEngine::newConv(const ConvDesc& desc)
   {
-  #if defined(OIDN_ARCH_X64)
+  #if defined(OIDN_ARCH_X64) && !defined(__APPLE__)
     if (device->getArch() == CPUArch::AVX512_AMXFP16)
       return makeRef<CPUConvAMX>(this, desc);
     else