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| author | Ulrich Drepper <drepper@gmail.com> | 2011-08-11 14:07:04 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-08-11 14:07:04 -0400 |
| commit | 8e999d29628b0d1fec3046722554e792c351450b (patch) | |
| tree | 79061a4d87ac4cc31aa005554c627dea15a0ec9e | |
| parent | 89edf2e9119b57fc404891670d2bc47bdfdb61ef (diff) | |
| download | glibc-8e999d29628b0d1fec3046722554e792c351450b.zip glibc-8e999d29628b0d1fec3046722554e792c351450b.tar.gz glibc-8e999d29628b0d1fec3046722554e792c351450b.tar.bz2 | |
Minor optimization of popcount in l10nflist
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | intl/l10nflist.c | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/l10nflist.c | 13 |
3 files changed, 18 insertions, 0 deletions
@@ -1,5 +1,8 @@ 2011-08-11 Ulrich Drepper <drepper@gmail.com> + * intl/l10nflist.c: Allow architecture-specific pop function. + * sysdeps/x86_64/l10nflist.c: New file. + * intl/l10nflist.c (_nl_make_l10nflist): Use locale-independent classification. diff --git a/intl/l10nflist.c b/intl/l10nflist.c index a38e0ef..82af263 100644 --- a/intl/l10nflist.c +++ b/intl/l10nflist.c @@ -150,6 +150,7 @@ argz_next__ (argz, argz_len, entry) /* Return number of bits set in X. */ +#ifndef ARCH_POP static int pop PARAMS ((int x)); static inline int @@ -164,6 +165,7 @@ pop (x) return x; } +#endif struct loaded_l10nfile * diff --git a/sysdeps/x86_64/l10nflist.c b/sysdeps/x86_64/l10nflist.c new file mode 100644 index 0000000..2e08372 --- /dev/null +++ b/sysdeps/x86_64/l10nflist.c @@ -0,0 +1,13 @@ +#ifdef __POPCNT__ +# include <popcntintrin.h> + +static inline unsigned int +pop (unsigned int x) +{ + return _mm_popcnt_u32 (x); +} +# define ARCH_POP 1 + +#endif + +#include <intl/l10nflist.c> |