http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55428
--- Comment #6 from Andreas Kasberger
2012-11-29 09:21:06 UTC ---
I hope at least someone can agree that the behavior for "-mms-bitfields
-mno-align-double" options in one command line is wrong and a bug
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55428
--- Comment #5 from Andreas Kasberger
2012-11-26 09:51:50 UTC ---
I found this example on
geeksforgeeks.org/forum/topic/c-structure-size-with-empty-bitfield
#define offset(a,b) (size_t)(&(((a*)(0))->b))
struct emp
{
char s:8;
char c:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55428
--- Comment #4 from Andreas Kasberger
2012-11-26 07:21:51 UTC ---
(In reply to comment #2)
> Hmm, it seems that for ms-bitfields the default-field-alignment overrides all
> field-local alignments. I wouldn't assume that __attribute__((pac
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55428
--- Comment #3 from Andreas Kasberger
2012-11-26 06:38:28 UTC ---
It is not working with gcc 4.6.2 or 4.7. I tried an old compiler gcc 3.4.3 and
the behavior was correct(In reply to comment #1)
> Possibly related to PR52991 (-mms-bitfields
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55428
Bug #: 55428
Summary: -mms-bitfields hides -mno-align-double option
Classification: Unclassified
Product: gcc
Version: 4.6.2
Status: UNCONFIRMED
Severity: normal
