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avr.md (*addhi3, [...]): Add "w" alternative for constants in [-63,63]. 

* config/avr/avr.md (*addhi3, addhi3_clobber): Add "w" alternative
	for constants in [-63,63].

From-SVN: r185105
This commit is contained in:
Georg-Johann Lay 2012-03-08 16:36:49 +00:00 committed by Georg-Johann Lay
parent ce19a3f8b0
commit e04d063b1d
2 changed files with 16 additions and 10 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-03-08 Georg-Johann Lay <avr@gjlay.de>
* config/avr/avr.md (*addhi3, addhi3_clobber): Add "w" alternative
for constants in [-63,63].
2012-03-08 Uros Bizjak <ubizjak@gmail.com> 2012-03-08 Uros Bizjak <ubizjak@gmail.com>
PR target/52530 PR target/52530

21
gcc/config/avr/avr.md
View File

@ -1098,15 +1098,16 @@
(set_attr "adjust_len" "addto_sp")]) (set_attr "adjust_len" "addto_sp")])
(define_insn "*addhi3" (define_insn "*addhi3"
[(set (match_operand:HI 0 "register_operand" "=r,d,d") [(set (match_operand:HI 0 "register_operand" "=r,d,!w,d")
(plus:HI (match_operand:HI 1 "register_operand" "%0,0,0") (plus:HI (match_operand:HI 1 "register_operand" "%0,0,0 ,0")
(match_operand:HI 2 "nonmemory_operand" "r,s,n")))] (match_operand:HI 2 "nonmemory_operand" "r,s,IJ,n")))]
"" ""
{ {
static const char * const asm_code[] = static const char * const asm_code[] =
{ {
"add %A0,%A2\;adc %B0,%B2", "add %A0,%A2\;adc %B0,%B2",
"subi %A0,lo8(-(%2))\;sbci %B0,hi8(-(%2))", "subi %A0,lo8(-(%2))\;sbci %B0,hi8(-(%2))",
"",
"" ""
}; };
@ -1115,9 +1116,9 @@
return avr_out_plus_noclobber (operands, NULL, NULL); return avr_out_plus_noclobber (operands, NULL, NULL);
} }
[(set_attr "length" "2,2,2") [(set_attr "length" "2,2,2,2")
(set_attr "adjust_len" "*,*,out_plus_noclobber") (set_attr "adjust_len" "*,*,out_plus_noclobber,out_plus_noclobber")
(set_attr "cc" "set_n,set_czn,out_plus_noclobber")]) (set_attr "cc" "set_n,set_czn,out_plus_noclobber,out_plus_noclobber")])
;; Adding a constant to NO_LD_REGS might have lead to a reload of ;; Adding a constant to NO_LD_REGS might have lead to a reload of
;; that constant to LD_REGS. We don't add a scratch to *addhi3 ;; that constant to LD_REGS. We don't add a scratch to *addhi3
@ -1155,10 +1156,10 @@
(clobber (match_dup 2))])]) (clobber (match_dup 2))])])
(define_insn "addhi3_clobber" (define_insn "addhi3_clobber"
[(set (match_operand:HI 0 "register_operand" "=d,l") [(set (match_operand:HI 0 "register_operand" "=!w,d,r")
(plus:HI (match_operand:HI 1 "register_operand" "%0,0") (plus:HI (match_operand:HI 1 "register_operand" "%0,0,0")
(match_operand:HI 2 "const_int_operand" "n,n"))) (match_operand:HI 2 "const_int_operand" "IJ,n,n")))
(clobber (match_scratch:QI 3 "=X,&d"))] (clobber (match_scratch:QI 3 "=X,X,&d"))]
"" ""
{ {
gcc_assert (REGNO (operands[0]) == REGNO (operands[1])); gcc_assert (REGNO (operands[0]) == REGNO (operands[1]));