Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
Richard.
2012-09-03 Richard Guenther <rguent...@suse.de>
PR tree-optimization/54362
* tree-ssa-structalias.c (find_func_aliases): Handle COND_EXPR.
Index: gcc/tree-ssa-structalias.c
===================================================================
--- gcc/tree-ssa-structalias.c (revision 190620)
+++ gcc/tree-ssa-structalias.c (working copy)
@@ -4527,6 +4527,18 @@ find_func_aliases (gimple origt)
&& !POINTER_TYPE_P (TREE_TYPE (rhsop))))
|| gimple_assign_single_p (t))
get_constraint_for_rhs (rhsop, &rhsc);
+ else if (code == COND_EXPR)
+ {
+ /* The result is a merge of both COND_EXPR arms. */
+ VEC (ce_s, heap) *tmp = NULL;
+ struct constraint_expr *rhsp;
+ unsigned i;
+ get_constraint_for_rhs (gimple_assign_rhs2 (t), &rhsc);
+ get_constraint_for_rhs (gimple_assign_rhs3 (t), &tmp);
+ FOR_EACH_VEC_ELT (ce_s, tmp, i, rhsp)
+ VEC_safe_push (ce_s, heap, rhsc, rhsp);
+ VEC_free (ce_s, heap, tmp);
+ }
else if (truth_value_p (code))
/* Truth value results are not pointer (parts). Or at least
very very unreasonable obfuscation of a part. */
