Fix x86-64 sixtrack ICE

Fix x86-64 sixtrack ICE

[Jan Hubicka]

Hi,
on x86-64 we can't do negdf in GPR easilly as we can't encode negative zero as
an immediate.  I am commiting the attached patch as obvious to mainline and BIB
branch to fix sixtrack compilation error.

Honza

Thu Oct 31 16:09:44 CET 2002  Jan Hubicka  <jh@suse.cz>
	* i386.md (negdf2_ifs_rex64): Don't allow GPR operand.
Index: i386.md
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/i386/i386.md,v
retrieving revision 1.400
diff -c -3 -p -r1.400 i386.md
*** i386.md	29 Oct 2002 19:41:34 -0000	1.400
--- i386.md	31 Oct 2002 15:15:31 -0000
***************
*** 9438,9446 ****
    "#")
  
  (define_insn "*negdf2_ifs_rex64"
!   [(set (match_operand:DF 0 "nonimmediate_operand" "=Y#fr,Y#fr,fm#Yr,r#Yf")
! 	(neg:DF (match_operand:DF 1 "nonimmediate_operand" "0,Y#fr,0,0")))
!    (use (match_operand:DF 2 "general_operand" "Y,0,*g#Yr,*rm"))
     (clobber (reg:CC 17))]
    "TARGET_64BIT && TARGET_SSE2
     && (reload_in_progress || reload_completed
--- 9438,9446 ----
    "#")
  
  (define_insn "*negdf2_ifs_rex64"
!   [(set (match_operand:DF 0 "nonimmediate_operand" "=Y#f,Y#f,fm#Y")
! 	(neg:DF (match_operand:DF 1 "nonimmediate_operand" "0,Y#f,0")))
!    (use (match_operand:DF 2 "general_operand" "Y,0,*g#Y*r"))
     (clobber (reg:CC 17))]
    "TARGET_64BIT && TARGET_SSE2
     && (reload_in_progress || reload_completed