Commit 9b638c03 by Richard Guenther Committed by Richard Biener

tree.c (build_vector): Assert that the vector constant has enough elements.

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.

From-SVN: r162677
parent 1c09321c
2010-07-29 Richard Guenther <rguenther@suse.de> 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 PR tree-optimization/45120
* tree-ssa-structalias.c (get_constraint_for_component_ref): * tree-ssa-structalias.c (get_constraint_for_component_ref):
Handle offset in DEREFs properly. Handle offset in DEREFs properly.
......
...@@ -1318,6 +1318,7 @@ build_vector (tree type, tree vals) ...@@ -1318,6 +1318,7 @@ build_vector (tree type, tree vals)
tree v = make_node (VECTOR_CST); tree v = make_node (VECTOR_CST);
int over = 0; int over = 0;
tree link; tree link;
unsigned cnt = 0;
TREE_VECTOR_CST_ELTS (v) = vals; TREE_VECTOR_CST_ELTS (v) = vals;
TREE_TYPE (v) = type; TREE_TYPE (v) = type;
...@@ -1326,6 +1327,7 @@ build_vector (tree type, tree vals) ...@@ -1326,6 +1327,7 @@ build_vector (tree type, tree vals)
for (link = vals; link; link = TREE_CHAIN (link)) for (link = vals; link; link = TREE_CHAIN (link))
{ {
tree value = TREE_VALUE (link); tree value = TREE_VALUE (link);
cnt++;
/* Don't crash if we get an address constant. */ /* Don't crash if we get an address constant. */
if (!CONSTANT_CLASS_P (value)) if (!CONSTANT_CLASS_P (value))
...@@ -1334,6 +1336,8 @@ build_vector (tree type, tree vals) ...@@ -1334,6 +1336,8 @@ build_vector (tree type, tree vals)
over |= TREE_OVERFLOW (value); over |= TREE_OVERFLOW (value);
} }
gcc_assert (cnt == TYPE_VECTOR_SUBPARTS (type));
TREE_OVERFLOW (v) = over; TREE_OVERFLOW (v) = over;
return v; return v;
} }
...@@ -1350,6 +1354,9 @@ build_vector_from_ctor (tree type, VEC(constructor_elt,gc) *v) ...@@ -1350,6 +1354,9 @@ build_vector_from_ctor (tree type, VEC(constructor_elt,gc) *v)
FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value) FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
list = tree_cons (NULL_TREE, value, list); 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)); return build_vector (type, nreverse (list));
} }
......
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