2005-12-16 Paolo Bonzini <bonzini@gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / stor-layout.c

diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c
index 54ab5ac..b4e9ad1 100644 (file)
--- a/gcc/stor-layout.c
+++ b/gcc/stor-layout.c
@@ -1816,8 +1816,13 @@ layout_type (tree type)
                TYPE_MODE (type) = BLKmode;
              }
          }
+       /* When the element size is constant, check that it is at least as
+          large as the element alignment.  */
        if (TYPE_SIZE_UNIT (element)
            && TREE_CODE (TYPE_SIZE_UNIT (element)) == INTEGER_CST
+           /* If TYPE_SIZE_UNIT overflowed, then it is certainly larger than
+              TYPE_ALIGN_UNIT.  */
+           && !TREE_CONSTANT_OVERFLOW (TYPE_SIZE_UNIT (element))
            && !integer_zerop (TYPE_SIZE_UNIT (element))
            && compare_tree_int (TYPE_SIZE_UNIT (element),
                                 TYPE_ALIGN_UNIT (element)) < 0)