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improve codegen for mi_free

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This commit is contained in:
daan 2020-01-23 10:03:03 -08:00
parent 66818bf632
commit 0316859e06
1 changed files with 6 additions and 4 deletions
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8
src/alloc.c
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@ -290,7 +290,8 @@ mi_block_t* _mi_page_ptr_unalign(const mi_segment_t* segment, const mi_page_t* p
} }
static void mi_decl_noinline mi_free_generic(const mi_segment_t* segment, mi_page_t* page, bool local, void* p) { static void mi_decl_noinline mi_free_generic(const mi_segment_t* segment, bool local, void* p) {
mi_page_t* page = _mi_segment_page_of(segment, p);
mi_block_t* block = (mi_page_has_aligned(page) ? _mi_page_ptr_unalign(segment, page, p) : (mi_block_t*)p); mi_block_t* block = (mi_page_has_aligned(page) ? _mi_page_ptr_unalign(segment, page, p) : (mi_block_t*)p);
_mi_free_block(page, local, block); _mi_free_block(page, local, block);
} }
@ -338,7 +339,7 @@ void mi_free(void* p) mi_attr_noexcept
if (mi_likely(tid == segment->thread_id && page->flags.full_aligned == 0)) { // the thread id matches and it is not a full page, nor has aligned blocks if (mi_likely(tid == segment->thread_id && page->flags.full_aligned == 0)) { // the thread id matches and it is not a full page, nor has aligned blocks
// local, and not full or aligned // local, and not full or aligned
mi_block_t* block = (mi_block_t*)p; mi_block_t* const block = (mi_block_t*)p;
if (mi_unlikely(mi_check_is_double_free(page,block))) return; if (mi_unlikely(mi_check_is_double_free(page,block))) return;
mi_block_set_next(page, block, page->local_free); mi_block_set_next(page, block, page->local_free);
page->local_free = block; page->local_free = block;
@ -349,7 +350,8 @@ void mi_free(void* p) mi_attr_noexcept
} }
else { else {
// non-local, aligned blocks, or a full page; use the more generic path // non-local, aligned blocks, or a full page; use the more generic path
mi_free_generic(segment, page, tid == segment->thread_id, p); // note: recalc page in generic to improve code generation
mi_free_generic(segment, tid == segment->thread_id, p);
} }
} }