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* config/h8300/h8300.md (*andsi3_ashift_n_lower): New.

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From-SVN: r61702
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Kazu Hirata 2003-01-24 16:03:14 +00:00 committed by Kazu Hirata
parent 0573975349
commit dff23a65f6
2 changed files with 25 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2003-01-24 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (*andsi3_ashift_n_lower): New.
2003-01-24 Volker Reichelt <reichelt@igpm.rwth-aachen.de>
* doc/bugreport.texi: Use @command instead of @code for commands.

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gcc/config/h8300/h8300.md
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@ -2597,6 +2597,27 @@
(clobber (scratch:QI))])]
"")
;; Transform (SImode << B) & 0xffff into (SImode) (HImode << B).
(define_insn_and_split "*andsi3_ashift_n_lower"
[(set (match_operand:SI 0 "register_operand" "=r,r")
(and:SI (ashift:SI (match_operand:SI 1 "register_operand" "0,0")
(match_operand:QI 2 "const_int_operand" "S,n"))
(match_operand:SI 3 "const_int_operand" "n,n")))
(clobber (match_scratch:QI 4 "=X,&r"))]
"(TARGET_H8300H || TARGET_H8300S)
&& INTVAL (operands[2]) <= 15
&& INTVAL (operands[3]) == ((-1 << INTVAL (operands[2])) & 0xffff)"
"#"
"&& reload_completed"
[(parallel [(set (match_dup 5)
(ashift:HI (match_dup 5)
(match_dup 2)))
(clobber (match_dup 4))])
(set (match_dup 0)
(zero_extend:SI (match_dup 5)))]
"operands[5] = gen_rtx_REG (HImode, REGNO (operands[0]));")
;; Accept (A >> 30) & 2 and the like.
(define_insn "*andsi3_lshiftrt_n_sb"