[Bug tree-optimization/24609] [4.0/4.1/4.2 regression] Same value duplicated in two different registers
rguenth at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Mon Jul 10 13:01:00 GMT 2006
------- Comment #12 from rguenth at gcc dot gnu dot org 2006-07-10 13:00 -------
This seems to worked around on the mainline and also fails for 4.0.3.
Basically, on the mainline you can still see the behavior if using
-fno-if-conversion.
Short testcase:
int
foo (int *a, char * p)
{
int d;
if (p)
d = 1;
else
d = 2;
a[0] = d;
return p[d - 1];
}
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Known to fail| |4.0.3 4.1.0 4.1.1 4.2.0
Known to work| |3.4.6
Last reconfirmed|0000-00-00 00:00:00 |2006-07-10 13:00:56
date| |
Summary|[4.1/4.2 regression] Same |[4.0/4.1/4.2 regression]
|value duplicated in two |Same value duplicated in two
|different registers |different registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24609
More information about the Gcc-bugs
mailing list