Re: PATCH: 2 x86-64 ABI bugs in gcc 3.3 and 3.4

[Mark Mitchell <mark at codesourcery dot com>]

H. J. Lu wrote:

> On Tue, May 18, 2004 at 07:28:15AM -0700, H. J. Lu wrote:
>
> > On Tue, May 18, 2004 at 02:23:48PM +0200, Gabriel Dos Reis wrote:
> >
> > > | 
> > > | As for the patch itself, the ABI changes involved here are for truly
> > > | obscure cases.
> > >
> > > As I explained in another message, I was going *not* to approve the
> > > patch no matter what you decide for 3.4.x.  Then I *did look* at the
> > > actual PRs. 
> > >
> > > | I thought aobut the situation quite a bit before
> > > | approving the patch, and decided that it was probably better to fix
> > > | this problem soon, so that 3.4.1 would be compatible with 3.5.x, even
> > >
> > > That is what I thought we're going to do, given the actual PRs, your
> > > past experience with ABI testing, debates and late take for GCC.
> >
> > I can add a new switch to 3.3 and 3.4. By default, gcc will issue
> > an error message and abort when it is about to generate the wrong
> > code. The new switch will allows user to either generate the wrong
> > code on purpose or generate the right one. Either way user knows what
> > kind of code will be generated. He/she will pick ABI conforming or
> > compatible him/herself, like
> >
> > -mabi=compatible
> > -mabi=conforming
>
>
> Here is the patch for gcc 3.3.

I don't think we want this.

--
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com