https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103935
Bug ID: 103935
Summary: [12 regression] g++.dg/vect/slp-pr98855.cc fails after
r12-6273
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:c166632bd22d7da66354121502019fc9c92ef07f, r12-6273
make -k check-gcc RUNTESTFLAGS="--target_board=unix'{-m64}'
vect.exp=g++.dg/vect/slp-pr98855.cc"
FAIL: g++.dg/vect/slp-pr98855.cc -std=c++98 scan-tree-dump slp1 "not
vectorized: vectorization is not profitable"
FAIL: g++.dg/vect/slp-pr98855.cc -std=c++14 scan-tree-dump slp1 "not
vectorized: vectorization is not profitable"
FAIL: g++.dg/vect/slp-pr98855.cc -std=c++17 scan-tree-dump slp1 "not
vectorized: vectorization is not profitable"
FAIL: g++.dg/vect/slp-pr98855.cc -std=c++2a scan-tree-dump slp1 "not
vectorized: vectorization is not profitable"
# of expected passes 8
# of unexpected failures 4
I am only seeing this on power 7 systems so it may be some vector thing not
supported there. Hrm. Looks like the failing test case was changed.
commit c166632bd22d7da66354121502019fc9c92ef07f
Author: Uros Bizjak <ubiz...@gmail.com>
Date: Wed Jan 5 23:16:34 2022 +0100
i386: Introduce V2QImode minmax, abs and uavgv2hi3_ceil [PR103861]
Add V2QImode minmax, abs and uavxv2qi3_ceil operations with SSE registers.
. . .
* g++.dg/vect/slp-pr98855.cc (dg-final): Check that
no vectorization using SLP was performed.
