------- Additional Comments From uros at kss-loka dot si 2005-01-19 08:17
-------
This functionality is missing after FP compares rewrite:
==i386_old.md==
...
;; We can't represent the LT test directly. Do this by swapping the operands.
(define_split
[(set (match_operand:SF 0 "fp_register_operand" "")
(if_then_else:SF (lt (match_operand:SF 1 "register_operand" "")
(match_operand:SF 2 "register_operand" ""))
(match_operand:SF 3 "register_operand" "")
(match_operand:SF 4 "register_operand" "")))
(clobber (reg:CC 17))]
"reload_completed
&& ((operands_match_p (operands[1], operands[3])
&& operands_match_p (operands[2], operands[4]))
|| (operands_match_p (operands[1], operands[4])
&& operands_match_p (operands[2], operands[3])))"
[(set (reg:CCFP 17)
(compare:CCFP (match_dup 2)
(match_dup 1)))
(set (match_dup 0)
(if_then_else:SF (ge (reg:CCFP 17) (const_int 0))
(match_dup 1)
(match_dup 2)))])
...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19506
