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stop initializing ref_count in exchange_alloc

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this is never read anymore
This commit is contained in:
Daniel Micay 2013-06-29 23:08:00 -04:00
parent 350a5c0b72
commit 408eef0d89
1 changed files with 21 additions and 1 deletions
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22
src/libstd/rt/global_heap.rs
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@ -43,6 +43,27 @@ pub unsafe fn malloc_raw(size: uint) -> *c_void {
}
// FIXME #4942: Make these signatures agree with exchange_alloc's signatures
#[cfg(stage0, not(test))]
#[lang="exchange_malloc"]
#[inline]
pub unsafe fn exchange_malloc(td: *c_char, size: uintptr_t) -> *c_char {
let td = td as *TyDesc;
let size = size as uint;
assert!(td.is_not_null());
let total_size = get_box_size(size, (*td).align);
let p = malloc_raw(total_size as uint);
let box: *mut BoxRepr = p as *mut BoxRepr;
(*box).header.ref_count = -1;
(*box).header.type_desc = td;
box as *c_char
}
// FIXME #4942: Make these signatures agree with exchange_alloc's signatures
#[cfg(not(stage0), not(test))]
#[lang="exchange_malloc"]
#[inline]
pub unsafe fn exchange_malloc(td: *c_char, size: uintptr_t) -> *c_char {
@ -55,7 +76,6 @@ pub unsafe fn exchange_malloc(td: *c_char, size: uintptr_t) -> *c_char {
let p = malloc_raw(total_size as uint);
let box: *mut BoxRepr = p as *mut BoxRepr;
(*box).header.ref_count = -1; // Exchange values not ref counted
(*box).header.type_desc = td;
box as *c_char