diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/ggc-page.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9bff84f..a301509 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-01-16 Steven Bosscher <stevenb@suse.de> + + * ggc-page.c (ggc_alloc_stat): Use __builtin_ctzl instead of a + loop to look for a free slot in a page entry. + 2005-01-16 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> PR target/16304 diff --git a/gcc/ggc-page.c b/gcc/ggc-page.c index e0dfb16..362bfe1 100644 --- a/gcc/ggc-page.c +++ b/gcc/ggc-page.c @@ -1139,8 +1139,14 @@ ggc_alloc_stat (size_t size MEM_STAT_DECL) word = bit = 0; while (~entry->in_use_p[word] == 0) ++word; + +#if GCC_VERSION >= 3004 + bit = __builtin_ctzl (~entry->in_use_p[word]); +#else while ((entry->in_use_p[word] >> bit) & 1) ++bit; +#endif + hint = word * HOST_BITS_PER_LONG + bit; } |