diff options
| author | bstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-10-26 20:03:21 +0000 |
|---|---|---|
| committer | bstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-10-26 20:03:21 +0000 |
| commit | c79b54af83c8031caac515081fb7c56a127b90e3 (patch) | |
| tree | e5391ba973e0b1e273c9037981ed8ac55099e03f /gcc/stor-layout.c | |
| parent | 8dfbafc807ba917d346d622915073bd4450ad344 (diff) | |
| download | gcc-c79b54af83c8031caac515081fb7c56a127b90e3.tar.gz | |
2010-10-26 Basile Starynkevitch <basile@starynkevitch.net>
MELT branch merged with trunk rev 165980
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@165983 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index f3663185e68..17e4fe54a37 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -661,11 +661,14 @@ layout_decl (tree decl, unsigned int known_align) } /* See if we can use an ordinary integer mode for a bit-field. - Conditions are: a fixed size that is correct for another mode - and occupying a complete byte or bytes on proper boundary. */ + Conditions are: a fixed size that is correct for another mode, + occupying a complete byte or bytes on proper boundary, + and not volatile or not -fstrict-volatile-bitfields. */ if (TYPE_SIZE (type) != 0 && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST - && GET_MODE_CLASS (TYPE_MODE (type)) == MODE_INT) + && GET_MODE_CLASS (TYPE_MODE (type)) == MODE_INT + && !(TREE_THIS_VOLATILE (decl) + && flag_strict_volatile_bitfields > 0)) { enum machine_mode xmode = mode_for_size_tree (DECL_SIZE (decl), MODE_INT, 1); |