https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68553
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-11-26
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/pr68445.c:7:3: note: Load
permutation 0 1 2 3 0 1 2 3
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/pr68445.c:7:3: note: no
vect permute for _13 = *p1f_35;
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/pr68445.c:7:3: note:
Build SLP failed: unsupported load permutation *destf_33 = _13;
and then
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/pr68445.c:7:3: note:
extract even/odd not supported by target
so it hits the missed "optimization" of simply omitting a 1:1 permutation.
