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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 33/56] tcg/optimize: Split out fold_dup, fold_dup2
Date: Wed, 27 Oct 2021 19:41:08 -0700
Message-Id: <20211028024131.1492790-34-richard.henderson@linaro.org>
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Cc: Luis Pires <luis.pires@eldorado.org.br>,
=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <f4bug@amsat.org>
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Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daud=C3=A9 <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/optimize.c | 53 +++++++++++++++++++++++++++++---------------------
1 file changed, 31 insertions(+), 22 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 5374c230da..8524fe1f8a 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -920,6 +920,31 @@ static bool fold_divide(OptContext *ctx, TCGOp *op)
return fold_const2(ctx, op);
}
=20
+static bool fold_dup(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[1])) {
+ uint64_t t =3D arg_info(op->args[1])->val;
+ t =3D dup_const(TCGOP_VECE(op), t);
+ return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+ }
+ return false;
+}
+
+static bool fold_dup2(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
+ uint64_t t =3D deposit64(arg_info(op->args[1])->val, 32, 32,
+ arg_info(op->args[2])->val);
+ return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+ }
+
+ if (args_are_copies(op->args[1], op->args[2])) {
+ op->opc =3D INDEX_op_dup_vec;
+ TCGOP_VECE(op) =3D MO_32;
+ }
+ return false;
+}
+
static bool fold_eqv(OptContext *ctx, TCGOp *op)
{
return fold_const2(ctx, op);
@@ -1731,28 +1756,6 @@ void tcg_optimize(TCGContext *s)
done =3D tcg_opt_gen_mov(&ctx, op, op->args[0], op->args[1]);
break;
=20
- case INDEX_op_dup_vec:
- if (arg_is_const(op->args[1])) {
- tmp =3D arg_info(op->args[1])->val;
- tmp =3D dup_const(TCGOP_VECE(op), tmp);
- tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
- continue;
- }
- break;
-
- case INDEX_op_dup2_vec:
- assert(TCG_TARGET_REG_BITS =3D=3D 32);
- if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
- tcg_opt_gen_movi(&ctx, op, op->args[0],
- deposit64(arg_info(op->args[1])->val, 32,=
32,
- arg_info(op->args[2])->val));
- continue;
- } else if (args_are_copies(op->args[1], op->args[2])) {
- op->opc =3D INDEX_op_dup_vec;
- TCGOP_VECE(op) =3D MO_32;
- }
- break;
-
default:
break;
=20
@@ -1796,6 +1799,12 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64(divu):
done =3D fold_divide(&ctx, op);
break;
+ case INDEX_op_dup_vec:
+ done =3D fold_dup(&ctx, op);
+ break;
+ case INDEX_op_dup2_vec:
+ done =3D fold_dup2(&ctx, op);
+ break;
CASE_OP_32_64(eqv):
done =3D fold_eqv(&ctx, op);
break;
--=20
2.25.1