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Use ffsl() in ALLOCM_ALIGN().

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Use ffsl() rather than ffs() plus bitshifting in ALLOCM_ALIGN().  The
original rational for using ffs() was portability, but the bitmap code
has since induced a hard dependency on ffsl().
This commit is contained in:
Jason Evans 2012-04-02 14:09:07 -07:00
parent 4eeb52f080
commit 722b370399
1 changed files with 1 additions and 6 deletions
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7
include/jemalloc/jemalloc.h.in
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@ -4,7 +4,6 @@
extern "C" {
#endif
#include <limits.h>
#include <strings.h>
#define JEMALLOC_VERSION "@jemalloc_version@"
@ -18,11 +17,7 @@ extern "C" {
#ifdef JEMALLOC_EXPERIMENTAL
#define ALLOCM_LG_ALIGN(la) (la)
#if LG_SIZEOF_PTR == 2
#define ALLOCM_ALIGN(a) (ffs(a)-1)
#else
#define ALLOCM_ALIGN(a) ((a < (size_t)INT_MAX) ? ffs(a)-1 : ffs(a>>32)+31)
#endif
#define ALLOCM_ALIGN(a) (ffsl(a)-1)
#define ALLOCM_ZERO ((int)0x40)
#define ALLOCM_NO_MOVE ((int)0x80)