https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91790
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2019-09-17 Blocks| |53947 Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Summary|ICE: Segmentation fault (in |ICE: verify_ssa failed |vr_values::vrp_visit_assign |(error: definition in block |ment_or_call), or ICE: |2 follows the use) |verify_ssa failed (error: | |definition in block 2 | |follows the use) | Ever confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Clearly a vectorizer issue. Somewhat oldish. Fix Index: gcc/tree-vect-stmts.c =================================================================== --- gcc/tree-vect-stmts.c (revision 275747) +++ gcc/tree-vect-stmts.c (working copy) @@ -9169,7 +9169,9 @@ vectorizable_load (stmt_vec_info stmt_in || alignment_support_scheme == dr_explicit_realign) && !compute_in_loop) { - msq = vect_setup_realignment (first_stmt_info, gsi, &realignment_token, + msq = vect_setup_realignment (first_stmt_info_for_drptr + ? first_stmt_info_for_drptr + : first_stmt_info, gsi, &realignment_token, alignment_support_scheme, NULL_TREE, &at_loop); if (alignment_support_scheme == dr_explicit_realign_optimized) Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 [Bug 53947] [meta-bug] vectorizer missed-optimizations