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h8300.md (a peephole2): Generalize to accept a memory operand.

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* config/h8300/h8300.md (a peephole2): Generalize to
	accept a memory operand.

From-SVN: r63883
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Kazu Hirata 2003-03-06 01:34:55 +00:00 committed by Kazu Hirata
parent 39ee7fa955
commit 8b41a8dac0
2 changed files with 10 additions and 6 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-03-05 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (a peephole2): Generalize to
accept a memory operand.
Wed Mar 5 19:34:18 2003 Olivier Hainque <hainque@act-europe.fr>
* config/alpha/alpha.h (PRINT_OPERAND_PUNCT_VALID_P): Add '+'.

11
gcc/config/h8300/h8300.md
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@ -3570,20 +3570,19 @@
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "")
(match_operand:SI 1 "register_operand" ""))
(match_operand:SI 1 "general_operand" ""))
(set (match_dup 0)
(and:SI (match_dup 0)
(const_int 255)))]
"(TARGET_H8300H || TARGET_H8300S)
&& REG_P (operands[0])
&& REG_P (operands[1])
&& REGNO (operands[0]) != REGNO (operands[1])"
&& !reg_overlap_mentioned_p (operands[0], operands[1])
&& !(GET_CODE (operands[1]) == MEM && MEM_VOLATILE_P (operands[1]))"
[(set (match_dup 0)
(const_int 0))
(set (strict_low_part (match_dup 2))
(match_dup 3))]
"operands[2] = gen_rtx_REG (QImode, REGNO (operands[0]));
operands[3] = gen_rtx_REG (QImode, REGNO (operands[1]));")
"operands[2] = gen_lowpart (QImode, operands[0]);
operands[3] = gen_lowpart (QImode, operands[1]);")
;; (compare (reg:SI) (const_int)) takes 6 bytes, so we try to achieve
;; the equivalent with shorter sequences. Here is the summary. Cases