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From: rth@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, hagen@equator.com,
	nobody@gcc.gnu.org
Subject: Re: c/9932: alignment of long long in struct seems to be wrong
Date: Sun, 16 Mar 2003 08:31:00 -0000	[thread overview]
Message-ID: <20030316083146.26572.qmail@sources.redhat.com> (raw)

Synopsis: alignment of long long in struct seems to be wrong

State-Changed-From-To: feedback->closed
State-Changed-By: rth
State-Changed-When: Sun Mar 16 08:31:46 2003
State-Changed-Why:
    Not a bug.  The x86 svr4 abi specifies that the maximum alignment
    of data in a structure is 4.  The *preferred* alignment is
    8, so that's what __alignof returns.
    
    There is a modification of this rule for MMX and SSE data
    types, in that they really require 8 and 16 byte alignment
    respectively; in this change we follow the Intel compiler.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9932


             reply	other threads:[~2003-03-16  8:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-16  8:31 rth [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-03-04 18:06 Hagen Last
2003-03-04 15:30 bangerth

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