[Bug optimization/14674] New: [tree-ssa] DOM misses ABS to negative translation
pinskia at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Sun Mar 21 22:51:00 GMT 2004
/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-dom3" } */
int
foo2 (distance, i, j)
int distance;
int i, j;
{
int t = distance;
if (t <= 0)
t = ((t) >= 0 ? (t) : -(t));
return t;
}
/* There should be no ABS_EXPR. */
/* { dg-final { scan-tree-dump-times "ABS_EXPR " 0 "dom3"} } */
Noticed while looking to why a test fail (gcc.dg/tree-ssa/20030807-6.c) on the lno branch
after applying my patch to find ABS in phiopt.
--
Summary: [tree-ssa] DOM misses ABS to negative translation
Product: gcc
Version: 3.4.0
Status: UNCONFIRMED
Keywords: pessimizes-code
Severity: enhancement
Priority: P2
Component: optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org,law at gcc dot gnu dot
org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14674
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