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h8300-protos.h: Add a prototype for h8300_expand_branch.

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* config/h8300/h8300-protos.h: Add a prototype for
	h8300_expand_branch.
	* config/h8300/h8300.c (h8300_expand_branch): New.
	* config/h8300/h8300.md (ble, bleu, bge, bgeu, blt, bltu, bgt,
	bgtu, beq, bne): Call h8300_expand_branch().

From-SVN: r78052
This commit is contained in:
Kazu Hirata 2004-02-18 22:12:59 +00:00 committed by Kazu Hirata
parent 07ee3b586d
commit 8981ecd360
4 changed files with 43 additions and 60 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2004-02-18 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300-protos.h: Add a prototype for
h8300_expand_branch.
* config/h8300/h8300.c (h8300_expand_branch): New.
* config/h8300/h8300.md (ble, bleu, bge, bgeu, blt, bltu, bgt,
bgtu, beq, bne): Call h8300_expand_branch().
2004-02-18 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300-protos.h: Add prototypes for

1
gcc/config/h8300/h8300-protos.h
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@ -45,6 +45,7 @@ extern const char *output_logical_op (enum machine_mode, rtx *);
extern unsigned int compute_logical_op_length (enum machine_mode,
rtx *);
extern int compute_logical_op_cc (enum machine_mode, rtx *);
extern void h8300_expand_branch (enum rtx_code, rtx);
extern void expand_a_shift (enum machine_mode, int, rtx[]);
extern int h8300_shift_needs_scratch_p (int, enum machine_mode);
extern int expand_a_rotate (rtx[]);

14
gcc/config/h8300/h8300.c
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@ -2675,6 +2675,20 @@ compute_logical_op_cc (enum machine_mode mode, rtx *operands)
return cc;
}
/* Expand a conditional branch. */
void
h8300_expand_branch (enum rtx_code code, rtx label)
{
rtx tmp;
tmp = gen_rtx_fmt_ee (code, VOIDmode, cc0_rtx, const0_rtx);
tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp,
gen_rtx_LABEL_REF (VOIDmode, label),
pc_rtx);
emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, tmp));
}
/* Shifts.
We devote a fair bit of code to getting efficient shifts since we

80
gcc/config/h8300/h8300.md
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@ -1566,94 +1566,54 @@
;; Conditional jump instructions
(define_expand "ble"
[(set (pc)
(if_then_else (le (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (LE, operands[0]); DONE;")
(define_expand "bleu"
[(set (pc)
(if_then_else (leu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (LEU, operands[0]); DONE;")
(define_expand "bge"
[(set (pc)
(if_then_else (ge (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (GE, operands[0]); DONE;")
(define_expand "bgeu"
[(set (pc)
(if_then_else (geu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (GEU, operands[0]); DONE;")
(define_expand "blt"
[(set (pc)
(if_then_else (lt (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (LT, operands[0]); DONE;")
(define_expand "bltu"
[(set (pc)
(if_then_else (ltu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (LTU, operands[0]); DONE;")
(define_expand "bgt"
[(set (pc)
(if_then_else (gt (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (GT, operands[0]); DONE;")
(define_expand "bgtu"
[(set (pc)
(if_then_else (gtu (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (GTU, operands[0]); DONE;")
(define_expand "beq"
[(set (pc)
(if_then_else (eq (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (EQ, operands[0]); DONE;")
(define_expand "bne"
[(set (pc)
(if_then_else (ne (cc0)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
[(match_operand 0 "" "")]
""
"")
"h8300_expand_branch (NE, operands[0]); DONE;")
(define_insn "branch_true"
[(set (pc)