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| author | Nathan Sidwell <nathan@codesourcery.com> | 2005-11-28 10:34:30 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2005-11-28 10:34:30 +0000 |
| commit | 646c0835465a8438ce3543bfcae30becf641a63e (patch) | |
| tree | 7e925b64a93bd395a2f07912807080dfbe0ecd38 /gcc/c-decl.c | |
| parent | bbee4b64682d27f5ea99df3654e3e1b139443e0e (diff) | |
| download | gcc-646c0835465a8438ce3543bfcae30becf641a63e.zip gcc-646c0835465a8438ce3543bfcae30becf641a63e.tar.gz gcc-646c0835465a8438ce3543bfcae30becf641a63e.tar.bz2 | |
re PR c++/21166 (g++ gives error on reference to packed structure elements)
.: PR c++/21166
* c-decl.c (finish_struct): Only set DECL_PACKED on a field
when its natural alignment is > BITS_PER_UNIT.
* stor-layout.c (finalize_type_size): Revert my patch of 2005-08-08.
* c-common.c (handle_packed_attribute): Ignore packing on a field
whose type is naturally char aligned.
cp:
PR c++/21166
* class.c (check_field_decls): Only set DECL_PACKED on a field
when its natural alignment is > BITS_PER_UNIT.
From-SVN: r107599
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index a86cfdc..44e03ab 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5326,7 +5326,9 @@ finish_struct (tree t, tree fieldlist, tree attributes) for (x = fieldlist; x; x = TREE_CHAIN (x)) { DECL_CONTEXT (x) = t; - DECL_PACKED (x) |= TYPE_PACKED (t); + + if (TYPE_PACKED (t) && TYPE_ALIGN (TREE_TYPE (x)) > BITS_PER_UNIT) + DECL_PACKED (x) = 1; /* If any field is const, the structure type is pseudo-const. */ if (TREE_READONLY (x)) |