https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91445
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Aug 15 12:02:47 2019 New Revision: 274532 URL: https://gcc.gnu.org/viewcvs?rev=274532&root=gcc&view=rev Log: 2019-08-15 Richard Biener <rguent...@suse.de> PR tree-optimization/91445 * gcc.dg/torture/pr91445.c: New testcase. Backport from mainline 2019-07-05 Richard Biener <rguent...@suse.de> PR tree-optimization/91091 * tree-ssa-alias.h (get_continuation_for_phi): Add tbaa_p parameter. (walk_non_aliased_vuses): Likewise. * tree-ssa-alias.c (maybe_skip_until): Pass down tbaa_p. (get_continuation_for_phi): New tbaa_p parameter and pass it down. (walk_non_aliased_vuses): Likewise. * tree-ssa-pre.c (translate_vuse_through_block): Likewise. * tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr): Likewise. * tree-ssa-sccvn.c (struct vn_walk_cb_data): Add tbaa_p flag. (vn_reference_lookup_3): Handle and pass down tbaa_p flag. (vn_reference_lookup_pieces): Adjust. (vn_reference_lookup): Remove alias-set altering, instead pass down false as tbaa_p. * gcc.dg/tree-ssa/pr91091-2.c: New testcase. 2019-07-04 Richard Biener <rguent...@suse.de> * tree-ssa-sccvn.h (vn_reference_lookup): Add last_vuse_ptr argument. * tree-ssa-sccvn.c (last_vuse_ptr, vn_walk_kind): Move globals into... (struct vn_walk_cb_data): New callback data struct. (vn_reference_lookup_2): Adjust. (vn_reference_lookup_3): Likewise. (vn_reference_lookup_pieces): Likewise. (vn_reference_lookup): Likewise, get last_vuse_ptr argument. (visit_reference_op_load): Adjust. Added: branches/gcc-9-branch/gcc/testsuite/gcc.dg/torture/pr91445.c branches/gcc-9-branch/gcc/testsuite/gcc.dg/tree-ssa/pr91091-2.c Modified: branches/gcc-9-branch/gcc/ChangeLog branches/gcc-9-branch/gcc/testsuite/ChangeLog branches/gcc-9-branch/gcc/tree-ssa-alias.c branches/gcc-9-branch/gcc/tree-ssa-alias.h branches/gcc-9-branch/gcc/tree-ssa-pre.c branches/gcc-9-branch/gcc/tree-ssa-sccvn.c branches/gcc-9-branch/gcc/tree-ssa-sccvn.h branches/gcc-9-branch/gcc/tree-ssa-scopedtables.c
