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h8300.md (zero_extendqisi2): Change to an expander.

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* config/h8300/h8300.md (zero_extendqisi2): Change to an
	expander.
	(*zero_extendqisi2_h8300): New.
	(*zero_extendqisi2_h8300hs): New.
	(two splitters): New.

From-SVN: r63660
This commit is contained in:
Kazu Hirata 2003-03-02 13:40:25 +00:00 committed by Kazu Hirata
parent 29efb63326
commit 23cdb4657f
2 changed files with 49 additions and 3 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2003-03-02 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md (zero_extendqisi2): Change to an
expander.
(*zero_extendqisi2_h8300): New.
(*zero_extendqisi2_h8300hs): New.
(two splitters): New.
2003-03-02 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* fp-bit.h (float_to_usi): Fix condition wrapping prototype.

44
gcc/config/h8300/h8300.md
View File

@ -2043,9 +2043,13 @@
(zero_extend:HI (match_dup 2)))]
"operands[2] = gen_rtx_REG (QImode, REGNO (operands[0]));")
;; The compiler can synthesize a H8/300H variant of this which is
;; just as efficient as one that we'd create
(define_insn "zero_extendqisi2"
(define_expand "zero_extendqisi2"
[(set (match_operand:SI 0 "register_operand" "")
(zero_extend:SI (match_operand:QI 1 "general_operand_src" "")))]
""
"")
(define_insn "*zero_extendqisi2_h8300"
[(set (match_operand:SI 0 "register_operand" "=r,r")
(zero_extend:SI (match_operand:QI 1 "general_operand_src" "0,g>")))]
"TARGET_H8300"
@ -2055,6 +2059,40 @@
[(set_attr "length" "4,8")
(set_attr "cc" "clobber,clobber")])
(define_insn "*zero_extendqisi2_h8300hs"
[(set (match_operand:SI 0 "register_operand" "=r,r")
(zero_extend:SI (match_operand:QI 1 "general_operand_src" "0,g>")))]
"TARGET_H8300H || TARGET_H8300S"
"@
extu.w %T0\;extu.l %S0
mov.b %R1,%w0\;extu.w %T0\;extu.l %S0"
[(set_attr "length" "4,12")
(set_attr "cc" "set_znv,set_znv")])
(define_split
[(set (match_operand:SI 0 "register_operand" "")
(zero_extend:SI (match_operand:QI 1 "general_operand_src" "")))]
"(TARGET_H8300H || TARGET_H8300S)
&& reg_overlap_mentioned_p (operands[0], operands[1])
&& reload_completed"
[(set (match_dup 2)
(match_dup 1))
(set (match_dup 0)
(zero_extend:SI (match_dup 2)))]
"operands[2] = gen_rtx_REG (QImode, REGNO (operands[0]));")
(define_split
[(set (match_operand:SI 0 "register_operand" "")
(zero_extend:SI (match_operand:QI 1 "general_operand_src" "")))]
"(TARGET_H8300H || TARGET_H8300S)
&& !reg_overlap_mentioned_p (operands[0], operands[1])
&& reload_completed"
[(set (match_dup 0)
(const_int 0))
(set (strict_low_part (match_dup 2))
(match_dup 1))]
"operands[2] = gen_rtx_REG (QImode, REGNO (operands[0]));")
(define_expand "zero_extendhisi2"
[(set (match_operand:SI 0 "register_operand" "")
(zero_extend:SI (match_operand:HI 1 "register_operand" "")))]