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| author | Richard Biener <rguenther@suse.de> | 2014-10-29 09:22:55 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-10-29 09:22:55 +0000 |
| commit | 496d3346cfeeb96c46d299dc55a86082f544824f (patch) | |
| tree | d9b8c780862fa83dcd909ac72649d10ed3a78f6b /gcc | |
| parent | 65c0707be63d76723902a704f76a578f1cbde76b (diff) | |
| download | gcc-496d3346cfeeb96c46d299dc55a86082f544824f.zip gcc-496d3346cfeeb96c46d299dc55a86082f544824f.tar.gz gcc-496d3346cfeeb96c46d299dc55a86082f544824f.tar.bz2 | |
re PR tree-optimization/63666 (FAIL: gcc.dg/vect/pr45752.c (internal compiler error))
2014-10-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/63666
* tree-vect-slp.c (vect_get_mask_element): Properly handle
accessing out-of-bound elements.
From-SVN: r216825
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-vect-slp.c | 3 |
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 514cdd5..89665cf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-10-29 Richard Biener <rguenther@suse.de> + + PR tree-optimization/63666 + * tree-vect-slp.c (vect_get_mask_element): Properly handle + accessing out-of-bound elements. + 2014-10-29 Alexander Ivchenko <alexander.ivchenko@intel.com> Maxim Kuznetsov <maxim.kuznetsov@intel.com> Anna Tikhonova <anna.tikhonova@intel.com> diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index 90f5ef4..84bec95 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<tree> 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) |