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Refactored all of the desugaring code to no longer depend on memory being initialized to 0. Everything is about 12% faster now.

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This commit is contained in:
Dan Hirsch 2013-05-25 03:35:42 +02:00
parent d71215d494
commit ec404ca8fe
36 changed files with 411 additions and 417 deletions
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13
src/system_allocator.c
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@ -2,9 +2,14 @@
#include <stdlib.h>
#include "internal.h"
//#define DEBUG__MEMFILL 0xFF
static void* system_alloc(HAllocator *allocator, size_t size) {
void* ptr = calloc(size + sizeof(size_t), 1);
void* ptr = malloc(size + sizeof(size_t));
#ifdef DEBUG__MEMFILL
memset(ptr, DEBUG__MEMFILL, size + sizeof(size_t));
#endif
*(size_t*)ptr = size;
return ptr + sizeof(size_t);
}
@ -13,10 +18,12 @@ static void* system_realloc(HAllocator *allocator, void* ptr, size_t size) {
if (ptr == NULL)
return system_alloc(allocator, size);
ptr = realloc(ptr - sizeof(size_t), size + sizeof(size_t));
size_t old_size = *(size_t*)ptr;
*(size_t*)ptr = size;
#ifdef DEBUG__MEMFILL
size_t old_size = *(size_t*)ptr;
if (size > old_size)
memset(ptr+sizeof(size_t)+old_size, 0, size - old_size);
memset(ptr+sizeof(size_t)+old_size, DEBUG__MEMFILL, size - old_size);
#endif
return ptr + sizeof(size_t);
}