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predicates.md (even_register_operand, [...]): New predicates.

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* config/avr/predicates.md (even_register_operand, 
	odd_register_operand): New predicates.
	* config/avr/avr.md (movw peephole2): New.
	(movw_r peephole2): New.

From-SVN: r123379
This commit is contained in:
Anatoly Sokolov 2007-03-31 13:03:10 +04:00 • committed by Anatoly Sokolov
parent 89de14b25c
commit d54a92b5f6
3 changed files with 45 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2007-03-31 Anatoly Sokolov <aesok@post.ru>
* config/avr/predicates.md (even_register_operand,
odd_register_operand): New predicates.
* config/avr/avr.md (movw peephole2): New.
(movw_r peephole2): New.
2007-03-30 Rafael Avila de Espindola <espindola@google.com>
* tree.h (get_signed_or_unsigned_type): New.

28
gcc/config/avr/avr.md
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@ -283,6 +283,34 @@
[(set_attr "length" "2,6,7,2,6,5,2")
(set_attr "cc" "none,clobber,clobber,none,clobber,none,none")])
(define_peephole2 ; movw
[(set (match_operand:QI 0 "even_register_operand" "")
(match_operand:QI 1 "even_register_operand" ""))
(set (match_operand:QI 2 "odd_register_operand" "")
(match_operand:QI 3 "odd_register_operand" ""))]
"(AVR_HAVE_MOVW
&& REGNO (operands[0]) == REGNO (operands[2]) - 1
&& REGNO (operands[1]) == REGNO (operands[3]) - 1)"
[(set (match_dup 4) (match_dup 5))]
{
operands[4] = gen_rtx_REG (HImode, REGNO (operands[0]));
operands[5] = gen_rtx_REG (HImode, REGNO (operands[1]));
})
(define_peephole2 ; movw_r
[(set (match_operand:QI 0 "odd_register_operand" "")
(match_operand:QI 1 "odd_register_operand" ""))
(set (match_operand:QI 2 "even_register_operand" "")
(match_operand:QI 3 "even_register_operand" ""))]
"(AVR_HAVE_MOVW
&& REGNO (operands[2]) == REGNO (operands[0]) - 1
&& REGNO (operands[3]) == REGNO (operands[1]) - 1)"
[(set (match_dup 4) (match_dup 5))]
{
operands[4] = gen_rtx_REG (HImode, REGNO (operands[2]));
operands[5] = gen_rtx_REG (HImode, REGNO (operands[3]));
})
;;==========================================================================
;; move double word (32 bit)

10
gcc/config/avr/predicates.md
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@ -28,6 +28,16 @@
(and (match_code "reg")
(match_test "REGNO (op) >= 16 && REGNO (op) <= 31")))
(define_predicate "even_register_operand"
(and (match_code "reg")
(and (match_test "REGNO (op) <= 31")
(match_test "(REGNO (op) & 1) == 0"))))
(define_predicate "odd_register_operand"
(and (match_code "reg")
(and (match_test "REGNO (op) <= 31")
(match_test "(REGNO (op) & 1) != 0"))))
;; SP register.
(define_predicate "stack_register_operand"
(and (match_code "reg")