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| author | Dirk Mueller <dmueller@suse.de> | 2007-11-23 23:02:21 +0000 |
|---|---|---|
| committer | Dirk Mueller <mueller@gcc.gnu.org> | 2007-11-23 23:02:21 +0000 |
| commit | 88df9da15894541d19330b2f2d6cd301ce4f4cbf (patch) | |
| tree | c2bed6268f34a3f711cee93ae89b98112aa01a61 /gcc/tree-vrp.c | |
| parent | b96817da11c613095421177f06a1936a3e9bbf54 (diff) | |
| download | gcc-88df9da15894541d19330b2f2d6cd301ce4f4cbf.zip gcc-88df9da15894541d19330b2f2d6cd301ce4f4cbf.tar.gz gcc-88df9da15894541d19330b2f2d6cd301ce4f4cbf.tar.bz2 | |
re PR middle-end/34197 (array overflow warning without line number)
2007-11-23 Dirk Mueller <dmueller@suse.de>
Richard Guenther <rguenther@suse.de>
PR middle-end/34197
* tree-vrp.c (check_array_ref): Move check for valid location..
(check_array_bounds) here. Use EXPR_HAS_LOCATION().
Co-Authored-By: Richard Guenther <rguenther@suse.de>
From-SVN: r130385
Diffstat (limited to 'gcc/tree-vrp.c')
| -rw-r--r-- | gcc/tree-vrp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index dfb2820..00264d9 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -4339,7 +4339,7 @@ check_array_ref (tree ref, location_t* locus, bool ignore_off_by_one) low_sub = up_sub = TREE_OPERAND (ref, 1); - if (!up_bound || !locus || TREE_NO_WARNING (ref) + if (!up_bound || TREE_NO_WARNING (ref) || TREE_CODE (up_bound) != INTEGER_CST /* Can not check flexible arrays. */ || (TYPE_SIZE (TREE_TYPE (ref)) == NULL_TREE @@ -4441,6 +4441,12 @@ check_array_bounds (tree *tp, int *walk_subtree, void *data) tree stmt = (tree)data; location_t *location = EXPR_LOCUS (stmt); + if (!EXPR_HAS_LOCATION (stmt)) + { + *walk_subtree = FALSE; + return NULL_TREE; + } + *walk_subtree = TRUE; if (TREE_CODE (t) == ARRAY_REF) |