OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

re PR tree-optimization/46286 (ICE in do_complex_constraint, at tree-ssa-structalias.c:1882)

Browse Source 
2010-11-03  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/46286
	* tree-ssa-structalias.c (get_constraint_for_1): Avoid referencing
	re-allocated vector data.

From-SVN: r166241
This commit is contained in:
Richard Guenther 2010-11-03 12:20:28 +00:00 committed by Richard Biener
parent 72fdf9e9c4
commit de2184c0f8
2 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2010-11-03 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46286
* tree-ssa-structalias.c (get_constraint_for_1): Avoid referencing
re-allocated vector data.
2010-11-03 H.J. Lu <hongjiu.lu@intel.com>
PR target/46285

9
gcc/tree-ssa-structalias.c
View File

@ -3339,7 +3339,7 @@ get_constraint_for_1 (tree t, VEC (ce_s, heap) **results, bool address_p,
{
case MEM_REF:
{
struct constraint_expr *c;
struct constraint_expr cs;
varinfo_t vi, curr;
tree off = double_int_to_tree (sizetype, mem_ref_offset (t));
get_constraint_for_ptr_offset (TREE_OPERAND (t, 0), off, results);
@ -3347,12 +3347,12 @@ get_constraint_for_1 (tree t, VEC (ce_s, heap) **results, bool address_p,
/* If we are not taking the address then make sure to process
all subvariables we might access. */
c = VEC_last (ce_s, *results);
cs = *VEC_last (ce_s, *results);
if (address_p
|| c->type != SCALAR)
|| cs.type != SCALAR)
return;
vi = get_varinfo (c->var);
vi = get_varinfo (cs.var);
curr = vi->next;
if (!vi->is_full_var
&& curr)
@ -3366,7 +3366,6 @@ get_constraint_for_1 (tree t, VEC (ce_s, heap) **results, bool address_p,
{
if (curr->offset - vi->offset < size)
{
struct constraint_expr cs = *c;
cs.var = curr->id;
VEC_safe_push (ce_s, heap, *results, &cs);
}