re PR tree-optimization/43434 (Missed vectorization: "not vectorized: data ref analys...

re PR tree-optimization/43434 (Missed vectorization: "not vectorized: data ref analysis": pointer incremented by a parameter)

2016-04-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/43434
	* tree-ssa-structalias.c (struct vls_data): New.
	(visit_loadstore): Handle all pointer-based accesses.
	(compute_dependence_clique): Compute a bitmap of restrict tags
	assigned bases and pass it to visit_loadstore.

	* gcc.dg/vect/pr43434.c: New testcase.
	* c-c++-common/goacc/kernels-alias-3.c: Adjust.
	* c-c++-common/goacc/kernels-alias-4.c: Likewise.
	* c-c++-common/goacc/kernels-alias-5.c: Likewise.
	* c-c++-common/goacc/kernels-alias-6.c: Likewise.
	* c-c++-common/goacc/kernels-alias-7.c: Likewise.
	* c-c++-common/goacc/kernels-alias-8.c: Likewise.
	* gcc.dg/gomp/pr68640.c: Likewise.
	* gfortran.dg/goacc/kernels-alias-3.f95: Likewise.
	* gfortran.dg/goacc/kernels-alias-4.f95: Likewise.

From-SVN: r235147