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stormy16.md (negsi2): Allocate the pseudos before reload, but defer the split until after.

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* config/stormy16/stormy16.md (negsi2): Allocate the pseudos
before reload, but defer the split until after.
* config/stormy16/stormy16.c (xstormy16_expand_arith): Modify
to match.

From-SVN: r66485
This commit is contained in:
DJ Delorie 2003-05-05 11:25:01 -04:00 committed by DJ Delorie
parent 517f33152b
commit 9be132116f
3 changed files with 26 additions and 14 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2003-05-05 DJ Delorie <dj@redhat.com>
* config/stormy16/stormy16.md (negsi2): Allocate the pseudos
before reload, but defer the split until after.
* config/stormy16/stormy16.c (xstormy16_expand_arith): Modify
to match.
2003-05-05 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.h (ASM_CPU_SPEC): Add 440 support.

13
gcc/config/stormy16/stormy16.c
View File

@ -1873,22 +1873,15 @@ xstormy16_expand_arith (mode, code, dest, src0, src1, carry)
int firstloop = 1;
if (code == NEG)
{
rtx zero_reg = gen_reg_rtx (word_mode);
emit_move_insn (zero_reg, src0);
src0 = zero_reg;
}
emit_move_insn (src0, const0_rtx);
for (i = 0; i < num_words; i++)
{
rtx w_src0, w_src1, w_dest;
rtx insn;
if (code == NEG)
w_src0 = src0;
else
w_src0 = simplify_gen_subreg (word_mode, src0, mode,
i * UNITS_PER_WORD);
w_src0 = simplify_gen_subreg (word_mode, src0, mode,
i * UNITS_PER_WORD);
w_src1 = simplify_gen_subreg (word_mode, src1, mode, i * UNITS_PER_WORD);
w_dest = simplify_gen_subreg (word_mode, dest, mode, i * UNITS_PER_WORD);

20
gcc/config/stormy16/stormy16.md
View File

@ -603,11 +603,23 @@
[(set_attr "length" "4")])
(define_expand "negsi2"
[(set (match_operand:SI 0 "register_operand" "")
(neg:SI (match_operand:SI 1 "register_operand" "")))]
[(parallel [(set (match_operand:SI 0 "register_operand" "")
(neg:SI (match_operand:SI 1 "register_operand" "")))
(clobber (match_scratch:BI 2 ""))])]
""
"{ xstormy16_expand_arith (SImode, NEG, operands[0], const0_rtx,
operands[1], gen_reg_rtx (BImode)); DONE; }")
"{ operands[2] = gen_reg_rtx (HImode);
operands[3] = gen_reg_rtx (BImode); }")
(define_insn_and_split "*negsi2_internal"
[(set (match_operand:SI 0 "register_operand" "=&r")
(neg:SI (match_operand:SI 1 "register_operand" "r")))
(clobber (match_scratch:BI 2 "=y"))]
""
"#"
"reload_completed"
[(pc)]
"{ xstormy16_expand_arith (SImode, NEG, operands[0], operands[0],
operands[1], operands[2]); DONE; }")
;; ::::::::::::::::::::
;; ::