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| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-30 15:39:02 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-30 15:39:02 +0000 |
| commit | 4cf460a7bb258d3d61414d2f74df4c0f83c6a3af (patch) | |
| tree | da5b3754ad1910426086dc4a7f4dd7cca7b65b92 /configure.in | |
| parent | c19c8ef4aedadd52b9354188f36aa590ec319200 (diff) | |
| download | ruby-4cf460a7bb258d3d61414d2f74df4c0f83c6a3af.tar.gz | |
* string.c (search_nonascii): unroll and use ntz
* configure.in (__builtin_ctz): check.
* configure.in (__builtin_ctzll): check.
* internal.h (rb_popcount32): defined for ntz_int32.
it can use __builtin_popcount but this function is not used on
GCC environment because it uses __builtin_ctz.
When another function uses this, using __builtin_popcount
should be re-considered.
* internal.h (rb_popcount64): ditto.
* internal.h (ntz_int32): defined for ntz_intptr.
* internal.h (ntz_int64): defined for ntz_intptr.
* internal.h (ntz_intptr): defined as ntz for uintptr_t.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54854 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 1042b0329c..14711a6837 100644 --- a/configure.in +++ b/configure.in @@ -2432,6 +2432,8 @@ RUBY_CHECK_BUILTIN_FUNC(__builtin_bswap64, [__builtin_bswap64(0)]) RUBY_CHECK_BUILTIN_FUNC(__builtin_clz, [__builtin_clz(0)]) RUBY_CHECK_BUILTIN_FUNC(__builtin_clzl, [__builtin_clzl(0)]) RUBY_CHECK_BUILTIN_FUNC(__builtin_clzll, [__builtin_clzll(0)]) +RUBY_CHECK_BUILTIN_FUNC(__builtin_ctz, [__builtin_ctz(0)]) +RUBY_CHECK_BUILTIN_FUNC(__builtin_ctzll, [__builtin_ctzll(0)]) RUBY_CHECK_BUILTIN_FUNC(__builtin_choose_expr, [ [int x[__extension__(__builtin_choose_expr(1, 1, -1))]]; [int y[__extension__(__builtin_choose_expr(0, -1, 1))]]; |