Since the PR43949 fix was backported to 4_5-branch I'm seeing
FAIL: gcc.dg/vect/slp-perm-5.c scan-tree-dump-times vect "vectorized 1 loops" 1
FAIL: gcc.dg/vect/slp-perm-6.c scan-tree-dump-times vect "vectorized 1 loops" 1
in testsuite results on powerpc64-linux. They also fail on trunk since PR43949
was fixed there.
Before the PR43949 fix we had one "vectorized 1 loops" message in slp-perm-5:
> fgrep 'vectorized 1 loops' slp-perm-5.c.110t.vect
slp-perm-5.c:24: note: vectorized 1 loops in function.
but after the fix we have two:
> fgrep 'vectorized 1 loops' slp-perm-5.c.110t.vect
slp-perm-5.c:24: note: vectorized 1 loops in function.
slp-perm-5.c:47: note: vectorized 1 loops in function.
Since scan-tree-dump-times .. 1 .. expects exactly one such message, the test
case is now considered to have failed.
Perhaps artificially prevent the other loop from ever being vectorized?
--
Summary: [4.5/4.6 regression] PR43949 fix caused gcc.dg/vect/slp-
perm-{5,6}.c to fail
Product: gcc
Version: 4.5.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mikpe at it dot uu dot se
GCC build triplet: powerpc64-unknown-linux-gnu
GCC host triplet: powerpc64-unknown-linux-gnu
GCC target triplet: powerpc64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44538
