Hi, This patch fixes bug 90681. It was caused by trying to SLP vectorize a non grouped load. We've fixed it by tweaking a bit the implementation: mark masked loads as not vectorizable, but support them as an special case. Then the detect them in the test for normal non-grouped loads that was already there.
The bug reproducer now works and the performance test we added is still happy.
Alejandro
gcc/ChangeLog:
2019-05-31 Alejandro Martinez <alejandro.martinezvice...@arm.com>
PR tree-optimization/90681
* internal-fn.c (mask_load_direct): Mark as non-vectorizable again.
* tree-vect-slp.c (vect_build_slp_tree_1): Add masked loads as a
special case for SLP, but fail on non-grouped loads.
2019-05-31 Alejandro Martinez <alejandro.martinezvice...@arm.com>
gcc/testsuite/
PR tree-optimization/90681
* gfortran.dg/vect/pr90681.f: Bug reproducer.
fix.patch
Description: fix.patch
