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[Bug tree-optimization/63258] New: [5.0 regression] FAIL: gcc.dg/vect/costmodel/ppc/costmodel-slp-33.c scan-tree-dump-times vect "vectorization not profitable" 1
- From: "schwab at linux-m68k dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 13 Sep 2014 14:59:31 +0000
- Subject: [Bug tree-optimization/63258] New: [5.0 regression] FAIL: gcc.dg/vect/costmodel/ppc/costmodel-slp-33.c scan-tree-dump-times vect "vectorization not profitable" 1
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63258
Bug ID: 63258
Summary: [5.0 regression] FAIL:
gcc.dg/vect/costmodel/ppc/costmodel-slp-33.c
scan-tree-dump-times vect "vectorization not
profitable" 1
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: schwab@linux-m68k.org
CC: rguenther at suse dot de
Target: powerpc*-*-*
$ gcc/xgcc -Bgcc/
../gcc/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-slp-33.c -O2
-ftree-vectorize -fvect-cost-model=dynamic -fno-common -maltivec
-fdump-tree-vect-details -lm -m64 -o ./costmodel-slp-33.exe
$ grep -c "vectorization not profitable" costmodel-slp-33.c.116t.vect
0
192f7876fdb268b0b31a109123e0bb952a255a37 is the first bad commit
commit 192f7876fdb268b0b31a109123e0bb952a255a37
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Aug 28 13:13:45 2014 +0000
2014-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/62283
* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
Do not peel loops for alignment where the vector loop likely
doesn't run at least VF times.
* gfortran.dg/vect/pr62283.f: New testcase.
* gcc.dg/tree-ssa/cunroll-5.c: Adjust.
* gcc.dg/vect/costmodel/i386/costmodel-vect-31.c: Likewise.
* gcc.dg/vect/costmodel/i386/costmodel-vect-33.c: Likewise.
* gcc.dg/vect/costmodel/x86_64/costmodel-vect-31.c: Likewise.
* gcc.dg/vect/costmodel/x86_64/costmodel-vect-33.c: Likewise.
* gcc.dg/vect/vect-33.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214678
138bc75d-0d04-0410-961f-82ee72b054a4