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* config/h8300/h8300.md (a peephole2): New.

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From-SVN: r64802
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Kazu Hirata 2003-03-24 14:17:49 +00:00 • committed by Kazu Hirata
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2003-03-24 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (a peephole2): New.
2003-03-24 Jakub Jelinek <jakub@redhat.com>
* dojump.c (do_jump): Handle UNSAVE_EXPR specially.

15
gcc/config/h8300/h8300.md
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@ -3775,6 +3775,21 @@
? gen_rtx_GE (VOIDmode, cc0_rtx, const0_rtx)
: gen_rtx_LT (VOIDmode, cc0_rtx, const0_rtx));")
(define_peephole2
[(set (match_operand:QI 0 "register_operand" "")
(match_operand:QI 1 "general_operand" ""))
(set (match_operand:SI 2 "register_operand" "")
(and:SI (match_dup 2)
(const_int 255)))]
"(TARGET_H8300H || TARGET_H8300S)
&& !reg_overlap_mentioned_p (operands[2], operands[1])
&& REGNO (operands[0]) == REGNO (operands[2])"
[(set (match_dup 2)
(const_int 0))
(set (strict_low_part (match_dup 0))
(match_dup 1))]
"")
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "")
(match_operand:SI 1 "general_operand" ""))