Quoting Jan Hubicka <[EMAIL PROTECTED]>:
> If you make FPCTR/MXCSR real registers, you will need to add use to all
> the arithmetic and move pattern that would consume quite some memory and
> confuse optimizers. I think you can get better around simply using volatile
> unspecs inserted by LCM pas
> Hello!
>
> > Well you really want both the fpcr and the mxcsr registers, since the fpcr
> > only controls the x87 and the mxcsr controls the xmm registers. Note, in
> > adding these registers, you are going to have to go through all of the
> > floating
> > point patterns to add (use:HI FPCR_RE
Hello!
> Well you really want both the fpcr and the mxcsr registers, since the fpcr
> only controls the x87 and the mxcsr controls the xmm registers. Note, in
> adding these registers, you are going to have to go through all of the
> floating
> point patterns to add (use:HI FPCR_REG) and (use:SI
On Mon, May 23, 2005 at 10:25:26AM +0200, Uros Bizjak wrote:
> Hello!
>
> It looks that i387 control word register definition is missing from register
> definitions for i386 processor. Inside i386.h, we have:
>
> #define FIXED_REGISTERS
Hello!
It looks that i387 control word register definition is missing from register
definitions for i386 processor. Inside i386.h, we have:
#define FIXED_REGISTERS \
/*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7*/ \
{ 0, 0, 0, 0, 0, 0, 0
