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| author | Uros Bizjak <ubizjak@gmail.com> | 2012-06-19 18:28:50 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2012-06-19 18:28:50 +0200 |
| commit | d35d1c0fee58f7b141f535cb0f4800c471a6b00d (patch) | |
| tree | 028f8fa18b1a8c50463396c4ef422231d60c8198 /libcpp | |
| parent | bbe10a06e013c577005a6cae646095947bfdd277 (diff) | |
| download | gcc-d35d1c0fee58f7b141f535cb0f4800c471a6b00d.zip gcc-d35d1c0fee58f7b141f535cb0f4800c471a6b00d.tar.gz gcc-d35d1c0fee58f7b141f535cb0f4800c471a6b00d.tar.bz2 | |
lex.c (search_line_sse42): Use __builtin_ia32_loaddqu and __builtin_ia32_pcmpestri128 instead of asm.
* lex.c (search_line_sse42): Use __builtin_ia32_loaddqu and
__builtin_ia32_pcmpestri128 instead of asm.
From-SVN: r188782
Diffstat (limited to 'libcpp')
| -rw-r--r-- | libcpp/ChangeLog | 5 | ||||
| -rw-r--r-- | libcpp/lex.c | 7 |
2 files changed, 10 insertions, 2 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index fb4bac6..312fd8d 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,8 @@ +2011-06-19 Uros Bizjak <ubizjak@gmail.com> + + * lex.c (search_line_sse42): Use __builtin_ia32_loaddqu and + __builtin_ia32_pcmpestri128 instead of asm. + 2012-06-04 Dimitrios Apostolou <jimis@gmx.net> * line-map.c (linemap_enter_macro): Don't zero max_column_hint in diff --git a/libcpp/lex.c b/libcpp/lex.c index 98ee4e9..ab904db 100644 --- a/libcpp/lex.c +++ b/libcpp/lex.c @@ -427,6 +427,8 @@ search_line_sse42 (const uchar *s, const uchar *end) /* Check for unaligned input. */ if (si & 15) { + v16qi sv; + if (__builtin_expect (end - s < 16, 0) && __builtin_expect ((si & 0xfff) > 0xff0, 0)) { @@ -439,8 +441,9 @@ search_line_sse42 (const uchar *s, const uchar *end) /* ??? The builtin doesn't understand that the PCMPESTRI read from memory need not be aligned. */ - __asm ("%vpcmpestri $0, (%1), %2" - : "=c"(index) : "r"(s), "x"(search), "a"(4), "d"(16)); + sv = __builtin_ia32_loaddqu ((const char *) s); + index = __builtin_ia32_pcmpestri128 (search, 4, sv, 16, 0); + if (__builtin_expect (index < 16, 0)) goto found; |