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Use posix_memalign for Apple Silicon instead of _mm_malloc

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fails to build on that target, because of missing Intel Intrinsics.
macOS has posix_memalign() since ~2014 so we can simplify the code and just use that for all Apple platforms.

closes https://github.com/official-stockfish/Stockfish/pull/2985

No functional change.
This commit is contained in:
Daylen Yang 2020-08-11 12:02:48 -07:00 • committed by Joost VandeVondele
parent 992f549ae7
commit 6bc0256292
1 changed files with 3 additions and 3 deletions
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6
src/misc.cpp
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@ -51,7 +51,7 @@ typedef bool(*fun3_t)(HANDLE, CONST GROUP_AFFINITY*, PGROUP_AFFINITY);
#include <sys/mman.h>
#endif
#if (defined(__APPLE__) && defined(_LIBCPP_HAS_C11_FEATURES)) || defined(__ANDROID__) || defined(__OpenBSD__) || (defined(__GLIBCXX__) && !defined(_GLIBCXX_HAVE_ALIGNED_ALLOC) && !defined(_WIN32))
#if defined(__APPLE__) || defined(__ANDROID__) || defined(__OpenBSD__) || (defined(__GLIBCXX__) && !defined(_GLIBCXX_HAVE_ALIGNED_ALLOC) && !defined(_WIN32))
#define POSIXALIGNEDALLOC
#include <stdlib.h>
#endif
@ -328,7 +328,7 @@ void* std_aligned_alloc(size_t alignment, size_t size) {
if(posix_memalign(&pointer, alignment, size) == 0)
return pointer;
return nullptr;
#elif (defined(_WIN32) || (defined(__APPLE__) && !defined(_LIBCPP_HAS_C11_FEATURES)))
#elif defined(_WIN32)
return _mm_malloc(size, alignment);
#else
return std::aligned_alloc(alignment, size);
@ -338,7 +338,7 @@ void* std_aligned_alloc(size_t alignment, size_t size) {
void std_aligned_free(void* ptr) {
#if defined(POSIXALIGNEDALLOC)
free(ptr);
#elif (defined(_WIN32) || (defined(__APPLE__) && !defined(_LIBCPP_HAS_C11_FEATURES)))
#elif defined(_WIN32)
_mm_free(ptr);
#else
free(ptr);