+2005-09-09 Zdenek Dvorak <dvorakz@suse.cz>
+
+ PR tree-optimization/23509
+ * tree-cfg.c (replace_uses_by): Use replace_exp.
+ * tree-ssa-loop-ivopts.c (get_ref_tag): Assert that dereferenced
+ pointers have name_mem_tag or type_mem_tag set.
+
2005-09-09 Sebastian Pop <pop@cri.ensmp.fr>
* tree-chrec.c (evolution_function_is_invariant_rec_p): Use
FOR_EACH_IMM_USE_SAFE (use, imm_iter, name)
{
stmt = USE_STMT (use);
-
- SET_USE (use, val);
+ replace_exp (use, val);
if (TREE_CODE (stmt) == PHI_NODE)
{
return NULL_TREE;
if (TREE_CODE (var) == INDIRECT_REF)
- var = TREE_OPERAND (var, 0);
- if (TREE_CODE (var) == SSA_NAME)
{
+ /* In case the base is a dereference of a pointer, first check its name
+ mem tag, and if it does not have one, use type mem tag. */
+ var = TREE_OPERAND (var, 0);
+ if (TREE_CODE (var) != SSA_NAME)
+ return NULL_TREE;
+
if (SSA_NAME_PTR_INFO (var))
{
tag = SSA_NAME_PTR_INFO (var)->name_mem_tag;
}
var = SSA_NAME_VAR (var);
+ tag = var_ann (var)->type_mem_tag;
+ gcc_assert (tag != NULL_TREE);
+ return tag;
}
-
- if (DECL_P (var))
- {
+ else
+ {
+ if (!DECL_P (var))
+ return NULL_TREE;
+
tag = var_ann (var)->type_mem_tag;
if (tag)
return tag;
return var;
}
-
- return NULL_TREE;
}
/* Copies the reference information from OLD_REF to NEW_REF. */