------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-15
04:55 -------
Confirmed as a regression from 3.3.2, this happens in libstdc++ as mentioned
other places.
And I also check that 3.3.2 did not unroll a loop with non power of two step
aka:
int check(int a,int b, char *c)
{
for(;a<b;a+=5)
if(c[a]==1) return a;
return a;
}
is not unrolled in 3.3.2.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Known to work| |3.3.2
Last reconfirmed|0000-00-00 00:00:00 |2004-12-15 04:55:28
date| |
Summary|Loops with power of two step|[3.4/4.0 Regression] Loops
|and variable bounds not |with power of two step and
|unrolled |variable bounds not unrolled
Target Milestone|--- |3.4.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19001
