From e5cf270d6874627a38a96acefb549582d96f6df2 Mon Sep 17 00:00:00 2001 From: rguenth Date: Wed, 29 Oct 2014 09:22:55 +0000 Subject: [PATCH] 2014-10-29 Richard Biener PR tree-optimization/63666 * tree-vect-slp.c (vect_get_mask_element): Properly handle accessing out-of-bound elements. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216825 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 6 ++++++ gcc/tree-vect-slp.c | 3 ++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 514cdd54990..89665cfacd5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-10-29 Richard Biener + + PR tree-optimization/63666 + * tree-vect-slp.c (vect_get_mask_element): Properly handle + accessing out-of-bound elements. + 2014-10-29 Alexander Ivchenko Maxim Kuznetsov Anna Tikhonova diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index 90f5ef4b8da..84bec9544fe 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -2890,7 +2890,7 @@ vect_get_mask_element (gimple stmt, int first_mask_element, int m, } /* The mask requires the next vector. */ - if (*current_mask_element >= mask_nunits * 2) + while (*current_mask_element >= mask_nunits * 2) { if (*needs_first_vector || *mask_fixed) { @@ -3041,6 +3041,7 @@ vect_transform_slp_perm_load (slp_tree node, vec dr_chain, &number_of_mask_fixes, &mask_fixed, &needs_first_vector)) return false; + gcc_assert (current_mask_element < 2 * nunits); mask[index++] = current_mask_element; if (index == nunits) -- 2.11.4.GIT