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[Bug c/33711] New: Missed optimization: reduction by subtraction (vectorizer)
- From: "eres at il dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Oct 2007 13:20:36 -0000
- Subject: [Bug c/33711] New: Missed optimization: reduction by subtraction (vectorizer)
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
For example:
for (i = 0; i < N; i++) {
udiff -= (ub[i] * uc[i]);
--
Summary: Missed optimization: reduction by subtraction
(vectorizer)
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: eres at il dot ibm dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33711