[MPlayer-dev-eng] libfaad2 cannot be compiled with gcc 3.2.3 and "-mfpmath=sse"

[陆然]

Hi,

I've forgotten that I have change configure long long time before, sorry for 
the wrong bugreport:)

On Sunday 31 August 2003 19:06, Arpi wrote:
> Hi,
>
> since there is no -mfpmath=sse in ./configure, it must come from outside,
> so then you should get this message while running configure:
>
> -------------
> MPlayer compilation will use the CFLAGS set by you, but:
>
>     *** ***  DO NOT REPORT BUGS IF IT DOES NOT COMPILE/WORK!  *** ***
>
> It is strongly recommended to let MPlayer choose the correct CFLAGS!
> To do so, execute 'CFLAGS= ./configure <options>'
> -------------
>
> also, bugreports should not go to -dev-eng list anyway.
>
> > If compile it with "-mfpmath=sse", I got these Erros:
> >
> > =================
> > /usr/local/bin/gcc -c -I. -O2 -march=pentium3 -mcpu=pentium3 -pipe
> > -ffast-math -fomit-frame-pointer -mmmx -msse -mfpmath=sse -D_REENTRANT
>
> yes this is clearly not our CFLAGS!
> -mmmx -msse is a bad idea for mplayer, the vector operands are already
> optimzied so letting gcc use mmx/sse for others will only cause trouble by
> taking the free registers.
>
> > -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64  -o cfft.o cfft.c
> > cfft.c:556:2: warning: no newline at end of file
> > cfft.c: In function `passf2':
> > cfft.c:95: unable to find a register to spill in class `SSE_REGS'
> > cfft.c:95: this is the insn:
> > (insn 195 193 200 (set (subreg:SF (reg/v:DI 29 rmm0 [94]) 0)
> >         (minus:SF (reg:SF 21 exmm0 [104])
> >             (mem:SF (plus:SI (mult:SI (reg:SI 0 eax [95])
> >                         (const_int 8 [0x8]))
> >                     (reg/v/f:SI 4 esi [62])) [4 S4 A32]))) 547
> > {*fop_sf_1_sse} (insn_list 190 (nil))
> >     (expr_list:REG_DEAD (reg:SF 21 exmm0 [104])
> >         (nil)))
> > cfft.c:95: confused by earlier errors, bailing out
>
> also this looks like compiler bug, not mplayer bug.
> report to gcc authors, but since 3.2.3 is not the latest, it's maybe
> already fixed in 3.3.x.
>


-- 
Best Regards,
LR