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

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From-SVN: r63224
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Kazu Hirata 2003-02-21 14:46:11 +00:00 • committed by Kazu Hirata
parent 7b54048202
commit 902ac71956
2 changed files with 36 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2003-02-21 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (a peephole2): New.
Fri Feb 21 11:05:44 CET 2003 Jan Hubicka <jh@suse.cz>
* cfgrtl.c (commit_one_edge_insertion): Only mark BB for splitting.

32
gcc/config/h8300/h8300.md
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@ -3847,3 +3847,35 @@
(pc)))]
"operands[4] = gen_rtx_REG (HImode, REGNO (operands[0]));
operands[5] = GEN_INT (trunc_int_for_mode (INTVAL (operands[1]), HImode));")
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "")
(and:SI (match_dup 0)
(match_operand:SI 1 "const_int_qi_operand" "")))
(set (match_dup 0)
(xor:SI (match_dup 0)
(match_operand:SI 2 "const_int_qi_operand" "")))
(set (cc0)
(match_dup 0))
(set (pc)
(if_then_else (match_operator 4 "eqne_operator"
[(cc0) (const_int 0)])
(label_ref (match_operand 3 "" ""))
(pc)))]
"peep2_reg_dead_p (3, operands[0])
&& (~INTVAL (operands[1]) & INTVAL (operands[2])) == 0"
[(set (match_dup 5)
(and:QI (match_dup 5)
(match_dup 6)))
(set (match_dup 5)
(xor:QI (match_dup 5)
(match_dup 7)))
(set (cc0)
(match_dup 5))
(set (pc)
(if_then_else (match_op_dup 4 [(cc0) (const_int 0)])
(label_ref (match_dup 3))
(pc)))]
"operands[5] = gen_rtx_REG (QImode, REGNO (operands[0]));
operands[6] = GEN_INT (trunc_int_for_mode (INTVAL (operands[1]), QImode));
operands[7] = GEN_INT (trunc_int_for_mode (INTVAL (operands[2]), QImode));")