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merge from dev

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This commit is contained in:
Daan Leijen 2021-01-29 16:53:52 -08:00
commit b93cba3b05
9 changed files with 46 additions and 16 deletions
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19
include/mimalloc-internal.h
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@ -50,8 +50,8 @@ uintptr_t _os_random_weak(uintptr_t extra_seed);
static inline uintptr_t _mi_random_shuffle(uintptr_t x);
// init.c
extern mi_stats_t _mi_stats_main;
extern const mi_page_t _mi_page_empty;
extern mi_decl_cache_align mi_stats_t _mi_stats_main;
extern mi_decl_cache_align const mi_page_t _mi_page_empty;
bool _mi_is_main_thread(void);
bool _mi_preloading(); // true while the C runtime is not ready
@ -180,6 +180,21 @@ bool _mi_page_is_valid(mi_page_t* page);
#endif
// -----------------------------------------------------------------------------------
// On windows x86/x64 with msvc/clang-cl, use `rep movsb` for `memcpy` (issue #201)
// -----------------------------------------------------------------------------------
#if defined(_WIN32) && (defined(_M_IX86) || defined(_M_X64))
#include <intrin.h>
static inline void _mi_memcpy_rep_movsb(void* d, const void* s, size_t n) {
__movsb((unsigned char*)d, (const unsigned char*)s, n);
}
#define _mi_memcpy(d,s,n) _mi_memcpy_rep_movsb(d,s,n)
#else
#define _mi_memcpy(d,s,n) memcpy(d,s,n)
#endif
/* -----------------------------------------------------------
Inlined definitions
----------------------------------------------------------- */