[MPlayer-dev-eng] imdct.c and gcc 3.4.0/3.5

[D Richard Felker III]

On Sun, May 02, 2004 at 04:32:15AM +0200, Michael Niedermayer wrote:
> Hi
> 
> On Saturday 01 May 2004 22:31, D Richard Felker III wrote:
> > On Sat, May 01, 2004 at 10:26:28PM +0200, Piotr Neuman wrote:
> > > Warnings (3.4.0):
> > >
> > > imdct.c: In function `imdct_do_512_sse':
> > > imdct.c:937: warning: use of memory input without lvalue in asm operand 1
> > > is deprecated
> > > imdct.c:937: warning: use of memory input without lvalue in asm operand 2
> > > is deprecated
> > >
> > > Errors (3.5):
> > >
> > > imdct.c: In function `imdct_do_512_sse':
> > > imdct.c:937: error: memory input 1 is not directly addressable
> > > imdct.c:937: error: memory input 2 is not directly addressable
> >
> > I asked Piotr to post this. I fixed all the other gcc 3.5 errors he
> > pointed out to me, but this one is gcc being stupid, I think. I know
> > how to "fix" it, but I'm hesitant to touch the sse code since I can't
> > benchmark it. Is it ok to change these "m" constraints to "r"??
> ask gcc :)
> mine said: imdct.c:937: error: can't find a register in class `GENERAL_REGS' 
> while reloading `asm'

BTW, is it possible to pass in "m"(buf) and use 128+%1 in the asm,
rather than trying to pass in "m"(buf+128)?

Rich