Attachment #804511 for bug #869536

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;; implementation works the other way round.

(define_insn_and_split "divmodpsi4"
  [(set (match_operand:PSI 0 "pseudo_register_operand" "")
                   (div:PSI (match_operand:PSI 1 "pseudo_register_operand" "")
                            (match_operand:PSI 2 "pseudo_register_operand" "")))
              (set (match_operand:PSI 3 "pseudo_register_operand" "")
                   (mod:PSI (match_dup 1)
                            (match_dup 2)))
              (clobber (reg:DI 18))
              (clobber (reg:QI 26))]
  ""
  { gcc_unreachable(); }
  ""

  [(set_attr "type" "xcall")])

(define_insn_and_split "udivmodpsi4"
  [(set (match_operand:PSI 0 "pseudo_register_operand" "")
                   (udiv:PSI (match_operand:PSI 1 "pseudo_register_operand" "")
                             (match_operand:PSI 2 "pseudo_register_operand" "")))
              (set (match_operand:PSI 3 "pseudo_register_operand" "")
                   (umod:PSI (match_dup 1)
                             (match_dup 2)))
              (clobber (reg:DI 18))
              (clobber (reg:QI 26))]
  ""
  { gcc_unreachable(); }
  ""

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(define_insn_and_split "divmodsi4"
  [(set (match_operand:SI 0 "pseudo_register_operand" "")
                   (div:SI (match_operand:SI 1 "pseudo_register_operand" "")
                           (match_operand:SI 2 "pseudo_register_operand" "")))
              (set (match_operand:SI 3 "pseudo_register_operand" "")

              (clobber (reg:SI 18))
              (clobber (reg:SI 22))
              (clobber (reg:HI 26))
              (clobber (reg:HI 30))]
  ""
  "this divmodsi4 pattern should have been splitted;"
  ""

  [(set_attr "type" "xcall")])

(define_insn_and_split "udivmodsi4"
  [(set (match_operand:SI 0 "pseudo_register_operand" "")
                   (udiv:SI (match_operand:SI 1 "pseudo_register_operand" "")
                           (match_operand:SI 2 "pseudo_register_operand" "")))
              (set (match_operand:SI 3 "pseudo_register_operand" "")

              (clobber (reg:SI 18))
              (clobber (reg:SI 22))
              (clobber (reg:HI 26))
              (clobber (reg:HI 30))]
  ""
  "this udivmodsi4 pattern should have been splitted;"
  ""

Return to bug 869536

Lines 4091-4104 Link Here

(-)a/gcc/config/avr/avr.md (-8 / +8 lines)
4091	;; implementation works the other way round.	4091	;; implementation works the other way round.
4092		4092
4093	(define_insn_and_split "divmodpsi4"	4093	(define_insn_and_split "divmodpsi4"
4094	[(parallel [(set (match_operand:PSI 0 "pseudo_register_operand" "")	4094	[(set (match_operand:PSI 0 "pseudo_register_operand" "")
4095	(div:PSI (match_operand:PSI 1 "pseudo_register_operand" "")	4095	(div:PSI (match_operand:PSI 1 "pseudo_register_operand" "")
4096	(match_operand:PSI 2 "pseudo_register_operand" "")))	4096	(match_operand:PSI 2 "pseudo_register_operand" "")))
4097	(set (match_operand:PSI 3 "pseudo_register_operand" "")	4097	(set (match_operand:PSI 3 "pseudo_register_operand" "")
4098	(mod:PSI (match_dup 1)	4098	(mod:PSI (match_dup 1)
4099	(match_dup 2)))	4099	(match_dup 2)))
4100	(clobber (reg:DI 18))	4100	(clobber (reg:DI 18))
4101	(clobber (reg:QI 26))])]	4101	(clobber (reg:QI 26))]
4102	""	4102	""
4103	{ gcc_unreachable(); }	4103	{ gcc_unreachable(); }
4104	""	4104	""
Lines 4140-4153 Link Here
4140	[(set_attr "type" "xcall")])	4140	[(set_attr "type" "xcall")])
4141		4141
4142	(define_insn_and_split "udivmodpsi4"	4142	(define_insn_and_split "udivmodpsi4"
4143	[(parallel [(set (match_operand:PSI 0 "pseudo_register_operand" "")	4143	[(set (match_operand:PSI 0 "pseudo_register_operand" "")
4144	(udiv:PSI (match_operand:PSI 1 "pseudo_register_operand" "")	4144	(udiv:PSI (match_operand:PSI 1 "pseudo_register_operand" "")
4145	(match_operand:PSI 2 "pseudo_register_operand" "")))	4145	(match_operand:PSI 2 "pseudo_register_operand" "")))
4146	(set (match_operand:PSI 3 "pseudo_register_operand" "")	4146	(set (match_operand:PSI 3 "pseudo_register_operand" "")
4147	(umod:PSI (match_dup 1)	4147	(umod:PSI (match_dup 1)
4148	(match_dup 2)))	4148	(match_dup 2)))
4149	(clobber (reg:DI 18))	4149	(clobber (reg:DI 18))
4150	(clobber (reg:QI 26))])]	4150	(clobber (reg:QI 26))]
4151	""	4151	""
4152	{ gcc_unreachable(); }	4152	{ gcc_unreachable(); }
4153	""	4153	""
Lines 4191-4197 Link Here
4191	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	4191	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
4192		4192
4193	(define_insn_and_split "divmodsi4"	4193	(define_insn_and_split "divmodsi4"
4194	[(parallel [(set (match_operand:SI 0 "pseudo_register_operand" "")	4194	[(set (match_operand:SI 0 "pseudo_register_operand" "")
4195	(div:SI (match_operand:SI 1 "pseudo_register_operand" "")	4195	(div:SI (match_operand:SI 1 "pseudo_register_operand" "")
4196	(match_operand:SI 2 "pseudo_register_operand" "")))	4196	(match_operand:SI 2 "pseudo_register_operand" "")))
4197	(set (match_operand:SI 3 "pseudo_register_operand" "")	4197	(set (match_operand:SI 3 "pseudo_register_operand" "")
Lines 4199-4205 Link Here
4199	(clobber (reg:SI 18))	4199	(clobber (reg:SI 18))
4200	(clobber (reg:SI 22))	4200	(clobber (reg:SI 22))
4201	(clobber (reg:HI 26))	4201	(clobber (reg:HI 26))
4202	(clobber (reg:HI 30))])]	4202	(clobber (reg:HI 30))]
4203	""	4203	""
4204	"this divmodsi4 pattern should have been splitted;"	4204	"this divmodsi4 pattern should have been splitted;"
4205	""	4205	""
Lines 4237-4243 Link Here
4237	[(set_attr "type" "xcall")])	4237	[(set_attr "type" "xcall")])
4238		4238
4239	(define_insn_and_split "udivmodsi4"	4239	(define_insn_and_split "udivmodsi4"
4240	[(parallel [(set (match_operand:SI 0 "pseudo_register_operand" "")	4240	[(set (match_operand:SI 0 "pseudo_register_operand" "")
4241	(udiv:SI (match_operand:SI 1 "pseudo_register_operand" "")	4241	(udiv:SI (match_operand:SI 1 "pseudo_register_operand" "")
4242	(match_operand:SI 2 "pseudo_register_operand" "")))	4242	(match_operand:SI 2 "pseudo_register_operand" "")))
4243	(set (match_operand:SI 3 "pseudo_register_operand" "")	4243	(set (match_operand:SI 3 "pseudo_register_operand" "")
Lines 4245-4251 Link Here
4245	(clobber (reg:SI 18))	4245	(clobber (reg:SI 18))
4246	(clobber (reg:SI 22))	4246	(clobber (reg:SI 22))
4247	(clobber (reg:HI 26))	4247	(clobber (reg:HI 26))
4248	(clobber (reg:HI 30))])]	4248	(clobber (reg:HI 30))]
4249	""	4249	""
4250	"this udivmodsi4 pattern should have been splitted;"	4250	"this udivmodsi4 pattern should have been splitted;"
4251	""	4251	""