[Bug tree-optimization/68707] [6 Regression] testcase gcc.dg/vect/O3-pr36098.c vectorized using VEC_PERM_EXPR rather than VEC_LOAD_LANES

[alalaw01 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707

--- Comment #6 from alalaw01 at gcc dot gnu.org ---
Well, I can confirm that the patch generates load-lanes/store-lanes instead of
SLP, all over the (vect) testsuite. All execution tests are passing :) so it
*may* just be a case of updating a lot of scan-tree-dump tests but we'll need
to do at least some performance evaluation, watch this space.