Backport from mainline

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

diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index 9498b73..9cfab4e 100644 (file)
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -2181,9 +2181,12 @@ analyze_access_subtree (struct access *root, struct access *parent,
          && (TREE_CODE (root->type) != INTEGER_TYPE
              || TYPE_PRECISION (root->type) != root->size)
          /* But leave bitfield accesses alone.  */
-         && (root->offset % BITS_PER_UNIT) == 0)
+         && (TREE_CODE (root->expr) != COMPONENT_REF
+             || !DECL_BIT_FIELD (TREE_OPERAND (root->expr, 1))))
        {
          tree rt = root->type;
+         gcc_assert ((root->offset % BITS_PER_UNIT) == 0
+                     && (root->size % BITS_PER_UNIT) == 0);
          root->type = build_nonstandard_integer_type (root->size,
                                                       TYPE_UNSIGNED (rt));
          root->expr = build_ref_for_offset (UNKNOWN_LOCATION,