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h8300-protos.h: Add a prototype for gtuleu_operator.

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* config/h8300/h8300-protos.h: Add a prototype for
	gtuleu_operator.
	* config/h8300/h8300.c (gtuleu_operator): New.
	* config/h8300/h8300.h (PREDICATE_CODES): Add gtuleu_operator.
	* config/h8300/h8300.md (a peephole2): New.

From-SVN: r62696
This commit is contained in:
Kazu Hirata 2003-02-11 13:43:20 +00:00 committed by Kazu Hirata
parent e36e8f526d
commit 717d8b714b
5 changed files with 58 additions and 1 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2003-02-11 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300-protos.h: Add a prototype for
gtuleu_operator.
* config/h8300/h8300.c (gtuleu_operator): New.
* config/h8300/h8300.h (PREDICATE_CODES): Add gtuleu_operator.
* config/h8300/h8300.md (a peephole2): New.
Tue Feb 11 13:32:12 CET 2003 Jan Hubicka <jh@suse.cz>
* sched-ebb.c (schedule_ebbs): Do not verify_flow_info.

1
gcc/config/h8300/h8300-protos.h
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@ -70,6 +70,7 @@ extern int incdec_operand PARAMS ((rtx, enum machine_mode));
extern int bit_operator PARAMS ((rtx, enum machine_mode));
extern int nshift_operator PARAMS ((rtx, enum machine_mode));
extern int eqne_operator PARAMS ((rtx, enum machine_mode));
extern int gtuleu_operator PARAMS ((rtx, enum machine_mode));
extern int h8300_eightbit_constant_address_p PARAMS ((rtx));
extern int h8300_tiny_constant_address_p PARAMS ((rtx));

12
gcc/config/h8300/h8300.c
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@ -1925,6 +1925,18 @@ eqne_operator (x, mode)
return (code == EQ || code == NE);
}
/* Return nonzero if X is either GTU or LEU. */
int
gtuleu_operator (x, mode)
rtx x;
enum machine_mode mode ATTRIBUTE_UNUSED;
{
enum rtx_code code = GET_CODE (x);
return (code == GTU || code == LEU);
}
/* Recognize valid operators for bit instructions. */
int

3
gcc/config/h8300/h8300.h
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@ -1293,6 +1293,7 @@ struct cum_arg
{"incdec_operand", {CONST_INT}}, \
{"bit_operator", {XOR, AND, IOR}}, \
{"nshift_operator", {ASHIFTRT, LSHIFTRT, ASHIFT}}, \
{"eqne_operator", {EQ, NE}},
{"eqne_operator", {EQ, NE}}, \
{"gtuleu_operator", {GTU, LEU}},
#endif /* ! GCC_H8300_H */

35
gcc/config/h8300/h8300.md
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@ -3480,6 +3480,41 @@
"operands[1] = GEN_INT (- INTVAL (operands[1]));
split_adds_subs (SImode, operands, 1);")
;; Transform A <= 1 to (A & 0xfffffffe) == 0.
(define_peephole2
[(set (cc0)
(compare:SI (match_operand:SI 0 "register_operand" "")
(match_operand:SI 1 "const_int_operand" "")))
(set (pc)
(if_then_else (match_operator 2 "gtuleu_operator"
[(cc0) (const_int 0)])
(label_ref (match_operand 3 "" ""))
(pc)))]
"(TARGET_H8300H || TARGET_H8300S)
&& find_regno_note (insn, REG_DEAD, REGNO (operands[0]))
&& (INTVAL (operands[1]) == 1
|| INTVAL (operands[1]) == 3
|| INTVAL (operands[1]) == 7
|| INTVAL (operands[1]) == 15
|| INTVAL (operands[1]) == 31
|| INTVAL (operands[1]) == 64
|| INTVAL (operands[1]) == 127
|| INTVAL (operands[1]) == 65535)"
[(set (match_dup 0)
(and:SI (match_dup 0)
(match_dup 5)))
(set (cc0)
(match_dup 0))
(set (pc)
(if_then_else (match_dup 4)
(label_ref (match_dup 3))
(pc)))]
"operands[4] = ((GET_CODE (operands[2]) == GTU) ?
gen_rtx_NE (VOIDmode, cc0_rtx, const0_rtx) :
gen_rtx_EQ (VOIDmode, cc0_rtx, const0_rtx));
operands[5] = GEN_INT (~INTVAL (operands[1]));")
;; Narrow the mode of testing if possible.
(define_peephole2