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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-07-29 12:31:29 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-07-29 12:31:29 +0000 |
| commit | 6207b4f9d5f30e15e6883a797456bd456f4cf780 (patch) | |
| tree | d6a0b4eca69ba92d9f1bd7793ead87989b748a15 /gcc | |
| parent | 726c2801df3c37ba209be9f2052d22e9d098fdb1 (diff) | |
| download | gcc-6207b4f9d5f30e15e6883a797456bd456f4cf780.tar.gz | |
2010-07-29 Richard Guenther <rguenther@suse.de>
* tree.c (build_vector): Assert that the vector constant
has enough elements.
(build_vector_from_ctor): Pad with trailing zeros.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@162677 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree.c | 7 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 45155e417f5..44353ab7ec8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2010-07-29 Richard Guenther <rguenther@suse.de> + * tree.c (build_vector): Assert that the vector constant + has enough elements. + (build_vector_from_ctor): Pad with trailing zeros. + +2010-07-29 Richard Guenther <rguenther@suse.de> + PR tree-optimization/45120 * tree-ssa-structalias.c (get_constraint_for_component_ref): Handle offset in DEREFs properly. diff --git a/gcc/tree.c b/gcc/tree.c index a33f22b40f5..f40114575e8 100644 --- a/gcc/tree.c +++ b/gcc/tree.c @@ -1318,6 +1318,7 @@ build_vector (tree type, tree vals) tree v = make_node (VECTOR_CST); int over = 0; tree link; + unsigned cnt = 0; TREE_VECTOR_CST_ELTS (v) = vals; TREE_TYPE (v) = type; @@ -1326,6 +1327,7 @@ build_vector (tree type, tree vals) for (link = vals; link; link = TREE_CHAIN (link)) { tree value = TREE_VALUE (link); + cnt++; /* Don't crash if we get an address constant. */ if (!CONSTANT_CLASS_P (value)) @@ -1334,6 +1336,8 @@ build_vector (tree type, tree vals) over |= TREE_OVERFLOW (value); } + gcc_assert (cnt == TYPE_VECTOR_SUBPARTS (type)); + TREE_OVERFLOW (v) = over; return v; } @@ -1350,6 +1354,9 @@ build_vector_from_ctor (tree type, VEC(constructor_elt,gc) *v) FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value) list = tree_cons (NULL_TREE, value, list); + for (; idx < TYPE_VECTOR_SUBPARTS (type); ++idx) + list = tree_cons (NULL_TREE, + fold_convert (TREE_TYPE (type), integer_zero_node), list); return build_vector (type, nreverse (list)); } |