diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index b41212a..e231d83 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -1,6 +1,6 @@ /* Expand builtin functions. Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GCC. @@ -3894,6 +3894,18 @@ std_gimplify_va_arg_expr (tree valist, tree type, tree *pre_p, tree *post_p) build2 (BIT_AND_EXPR, TREE_TYPE (valist), valist_tmp, t)); gimplify_and_add (t, pre_p); } + else + boundary = align; + + /* If the actual alignment is less than the alignment of the type, + adjust the type accordingly so that we don't assume strict alignment + when deferencing the pointer. */ + boundary *= BITS_PER_UNIT; + if (boundary < TYPE_ALIGN (type)) + { + type = build_variant_type_copy (type); + TYPE_ALIGN (type) = boundary; + } /* Compute the rounded size of the type. */ type_size = size_in_bytes (type); |