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h8300.md (movqi_internal): Remove useless alternative(s). 

* h8300.md (movqi_internal): Remove useless alternative(s).  Fix
        lengths and simplify by reordering remaining alternatives.
        (movestrictqi, movhi_internal, movstricthi): Likewise.
        (movsi_h8300h, movsf_h8300h): Likewise.

From-SVN: r11655
This commit is contained in:
Jeff Law 1996-04-02 19:36:54 -07:00
parent c91a56d266
commit 20c359e43d
1 changed files with 23 additions and 33 deletions
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56
gcc/config/h8300/h8300.md
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@ -32,6 +32,9 @@
;; ??? If we can remove the operand type on all the insns, do it.
;; ??? Otherwise, try to have the operand type on all the insns.
;; Some move patterns have conditions which check that one operand
;; is a register. Shouldn't all of them have such a condition?
(define_attr "type" "branch,return,call,arith,move,float,multi"
(const_string "arith"))
@ -92,10 +95,9 @@
(set (attr "length") (if_then_else (eq_attr "cpu" "h8300") (const_int 2) (const_int 4)))
(set_attr "cc" "set")])
;; ??? Use of the `c' constraint doesn't seem right.
(define_insn "movqi_internal"
[(set (match_operand:QI 0 "general_operand_dst" "=r,r,r,o,<,r")
(match_operand:QI 1 "general_operand_src" "I,r>,io,r,r,c"))]
[(set (match_operand:QI 0 "general_operand_dst" "=r,r,<,r,o")
(match_operand:QI 1 "general_operand_src" "I,r>,r,io,r"))]
"register_operand (operands[0],QImode)
|| register_operand (operands[1], QImode)"
"@
@ -103,16 +105,13 @@
mov.b %X1,%X0
mov.b %X1,%X0
mov.b %X1,%X0
mov.b %X1,%X0
xor %X0,%X0\;bst #0,%X0"
mov.b %X1,%X0"
[(set_attr "type" "move")
(set_attr_alternative "length"
[(const_int 2) (const_int 2)
[(const_int 2) (const_int 2) (const_int 2)
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 2) (const_int 4))
(const_int 4)])
(set_attr "cc" "set_zn_c0,set,set,set,set,clobber")])
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))])
(set_attr "cc" "set_zn_c0,set,set,set,set")])
(define_expand "movqi"
[(set (match_operand:QI 0 "general_operand_dst" "")
@ -129,22 +128,18 @@
}")
(define_insn "movstrictqi"
[(set (strict_low_part (match_operand:QI 0 "general_operand_dst" "=r,r,r,o,<"))
(match_operand:QI 1 "general_operand_src" "I,r,io,r,r"))]
[(set (strict_low_part (match_operand:QI 0 "general_operand_dst" "=r,r,r"))
(match_operand:QI 1 "general_operand_src" "I,r,io"))]
""
"@
sub.b %X0,%X0
mov.b %X1,%X0
mov.b %X1,%X0
mov.b %X1,%X0
mov.b %X1,%X0"
[(set_attr "type" "move")
(set_attr_alternative "length"
[(const_int 2) (const_int 2)
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 2) (const_int 4))])
(set_attr "cc" "set_zn_c0,set,set,set,set")])
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))])
(set_attr "cc" "set_zn_c0,set,set")])
;; movhi
@ -164,8 +159,8 @@
(set_attr "cc" "set")])
(define_insn "movhi_internal"
[(set (match_operand:HI 0 "general_operand_dst" "=ra,ra,ra,o,<")
(match_operand:HI 1 "general_operand_src" "I,ra>,ion,ra,ra"))]
[(set (match_operand:HI 0 "general_operand_dst" "=ra,ra,<,ra,o")
(match_operand:HI 1 "general_operand_src" "I,ra>,ra,ion,ra"))]
""
"@
sub.w %T0,%T0
@ -175,10 +170,9 @@
mov.w %T1,%T0"
[(set_attr "type" "move")
(set_attr_alternative "length"
[(const_int 2) (const_int 2)
[(const_int 2) (const_int 2) (const_int 2)
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 2) (const_int 4))])
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))])
(set_attr "cc" "set_zn_c0,set,set,set,set")])
(define_expand "movhi"
@ -196,22 +190,18 @@
}")
(define_insn "movstricthi"
[(set (strict_low_part (match_operand:HI 0 "general_operand_dst" "=r,r,r,o,<"))
(match_operand:HI 1 "general_operand_src" "I,r,io,r,r"))]
[(set (strict_low_part (match_operand:HI 0 "general_operand_dst" "=r,r,r"))
(match_operand:HI 1 "general_operand_src" "I,r,io"))]
""
"@
sub.w %T0,%T0
mov.w %T1,%T0
mov.w %T1,%T0
mov.w %T1,%T0
mov.w %T1,%T0"
[(set_attr "type" "move")
(set_attr_alternative "length"
[(const_int 2) (const_int 2)
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))
(if_then_else (eq_attr "cpu" "h8300") (const_int 2) (const_int 4))])
(set_attr "cc" "set_zn_c0,set,set,set,set")])
(if_then_else (eq_attr "cpu" "h8300") (const_int 4) (const_int 8))])
(set_attr "cc" "set_zn_c0,set,set")])
;; movsi
@ -391,7 +381,7 @@
mov.l %S1,%S0
mov.l %S1,%S0"
[(set_attr "type" "move")
(set_attr "length" "2,2,8,8,4,4")
(set_attr "length" "2,2,10,10,4,4")
(set_attr "cc" "set_zn_c0,set,set,set,set,set")])
(define_insn "movsf_h8300h"
@ -408,7 +398,7 @@
mov.l %S1,%S0
mov.l %S1,%S0"
[(set_attr "type" "move")
(set_attr "length" "2,2,8,8,4,4")
(set_attr "length" "2,2,10,10,4,4")
(set_attr "cc" "set_zn_c0,set,set,set,set,set")])
;; ----------------------------------------------------------------------