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limit memcpy as rep stosb to windows where the cpu supporst FSRM; add mi_memcpy_aligned for machine-word aligned copy. see issue #201 and pr #253

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Daan Leijen 2021-01-30 14:33:46 -08:00
parent 92ec493a5d
commit 35c1fc2be9
6 changed files with 77 additions and 24 deletions
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4
src/alloc-aligned.c
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@ -8,7 +8,7 @@ terms of the MIT license. A copy of the license can be found in the file
#include "mimalloc.h"
#include "mimalloc-internal.h"
#include <string.h> // memset, memcpy
#include <string.h> // memset
// ------------------------------------------------------
// Aligned Allocation
@ -137,7 +137,7 @@ static void* mi_heap_realloc_zero_aligned_at(mi_heap_t* heap, void* p, size_t ne
memset((uint8_t*)newp + start, 0, newsize - start);
}
}
_mi_memcpy(newp, p, (newsize > size ? size : newsize));
_mi_memcpy_aligned(newp, p, (newsize > size ? size : newsize));
mi_free(p); // only free if successful
}
return newp;