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[Bug tree-optimization/18813] New: not vectorizing obvious loop
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Dec 2004 18:13:58 -0000
- Subject: [Bug tree-optimization/18813] New: not vectorizing obvious loop
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
We cannot vectorize the following loop because the "number of iterations cannot be computed".
int f(int *s, int *e)
{
while ( s < e ) *s++ = 0;
}
This acutally shows up in SPEC (gap).
--
Summary: not vectorizing obvious loop
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P2
Component: tree-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
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18813