Add statements to type switch even if there are no valid types.

[pf3gnuchains/gcc-fork.git] / gcc / tree-sra.c

diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index c06ca8e..9d22ad7 100644 (file)
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -3563,10 +3563,12 @@ splice_param_accesses (tree parm, bool *ro_grp)
   while (i < access_count)
     {
       bool modification;
+      tree a1_alias_type;
       access = VEC_index (access_p, access_vec, i);
       modification = access->write;
       if (access_precludes_ipa_sra_p (access))
        return NULL;
+      a1_alias_type = reference_alias_ptr_type (access->expr);
 
       /* Access is about to become group representative unless we find some
         nasty overlap which would preclude us from breaking this parameter
@@ -3587,7 +3589,11 @@ splice_param_accesses (tree parm, bool *ro_grp)
          else if (ac2->size != access->size)
            return NULL;
 
-         if (access_precludes_ipa_sra_p (ac2))
+         if (access_precludes_ipa_sra_p (ac2)
+             || (ac2->type != access->type
+                 && (TREE_ADDRESSABLE (ac2->type)
+                     || TREE_ADDRESSABLE (access->type)))
+             || (reference_alias_ptr_type (ac2->expr) != a1_alias_type))
            return NULL;
 
          modification |= ac2->write;
@@ -3822,6 +3828,7 @@ turn_representatives_into_adjustments (VEC (access_p, heap) *representatives,
              adj->base_index = index;
              adj->base = repr->base;
              adj->type = repr->type;
+             adj->alias_ptr_type = reference_alias_ptr_type (repr->expr);
              adj->offset = repr->offset;
              adj->by_ref = (POINTER_TYPE_P (TREE_TYPE (repr->base))
                             && (repr->grp_maybe_modified