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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
This commit is contained in:
Uros Bizjak 2012-06-19 18:28:50 +02:00 committed by Uros Bizjak
parent bbe10a06e0
commit d35d1c0fee
2 changed files with 10 additions and 2 deletions
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5
libcpp/ChangeLog
View File

@ -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> 2012-06-04 Dimitrios Apostolou <jimis@gmx.net>
* line-map.c (linemap_enter_macro): Don't zero max_column_hint in * line-map.c (linemap_enter_macro): Don't zero max_column_hint in

7
libcpp/lex.c
View File

@ -427,6 +427,8 @@ search_line_sse42 (const uchar *s, const uchar *end)
/* Check for unaligned input. */ /* Check for unaligned input. */
if (si & 15) if (si & 15)
{ {
v16qi sv;
if (__builtin_expect (end - s < 16, 0) if (__builtin_expect (end - s < 16, 0)
&& __builtin_expect ((si & 0xfff) > 0xff0, 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 /* ??? The builtin doesn't understand that the PCMPESTRI read from
memory need not be aligned. */ memory need not be aligned. */
__asm ("%vpcmpestri $0, (%1), %2" sv = __builtin_ia32_loaddqu ((const char *) s);
: "=c"(index) : "r"(s), "x"(search), "a"(4), "d"(16)); index = __builtin_ia32_pcmpestri128 (search, 4, sv, 16, 0);
if (__builtin_expect (index < 16, 0)) if (__builtin_expect (index < 16, 0))
goto found; goto found;