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[Bug tree-optimization/68654] New: [6 Regression] CoreMark Pro performance degradation
- From: "afomin.mailbox at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 02 Dec 2015 13:34:09 +0000
- Subject: [Bug tree-optimization/68654] New: [6 Regression] CoreMark Pro performance degradation
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68654
Bug ID: 68654
Summary: [6 Regression] CoreMark Pro performance degradation
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: afomin.mailbox at gmail dot com
CC: izamyatin at gmail dot com, law at redhat dot com
Target Milestone: ---
Target: i686-*-*
After r228668 we can see a performance degradation in CoreMark Pro benchmark
compiled with -m32 -Ofast -funroll-loops for Haswell CPU.