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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 25/56] tcg/optimize: Split out fold_mulu2_i32
Date: Wed, 27 Oct 2021 19:41:00 -0700
Message-Id: <20211028024131.1492790-26-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 | 37 +++++++++++++++++++++----------------
1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index f79cb44944..805522f99d 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -899,6 +899,24 @@ static bool fold_mul_highpart(OptContext *ctx, TCGOp *=
op)
return fold_const2(ctx, op);
}
=20
+static bool fold_mulu2_i32(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[2]) && arg_is_const(op->args[3])) {
+ uint32_t a =3D arg_info(op->args[2])->val;
+ uint32_t b =3D arg_info(op->args[3])->val;
+ uint64_t r =3D (uint64_t)a * b;
+ TCGArg rl, rh;
+ TCGOp *op2 =3D tcg_op_insert_before(ctx->tcg, op, INDEX_op_mov_i32=
);
+
+ rl =3D op->args[0];
+ rh =3D op->args[1];
+ tcg_opt_gen_movi(ctx, op, rl, (int32_t)r);
+ tcg_opt_gen_movi(ctx, op2, rh, (int32_t)(r >> 32));
+ return true;
+ }
+ return false;
+}
+
static bool fold_nand(OptContext *ctx, TCGOp *op)
{
return fold_const2(ctx, op);
@@ -1710,22 +1728,6 @@ void tcg_optimize(TCGContext *s)
}
break;
=20
- case INDEX_op_mulu2_i32:
- if (arg_is_const(op->args[2]) && arg_is_const(op->args[3])) {
- uint32_t a =3D arg_info(op->args[2])->val;
- uint32_t b =3D arg_info(op->args[3])->val;
- uint64_t r =3D (uint64_t)a * b;
- TCGArg rl, rh;
- TCGOp *op2 =3D tcg_op_insert_before(s, op, INDEX_op_mov_i3=
2);
-
- rl =3D op->args[0];
- rh =3D op->args[1];
- tcg_opt_gen_movi(&ctx, op, rl, (int32_t)r);
- tcg_opt_gen_movi(&ctx, op2, rh, (int32_t)(r >> 32));
- continue;
- }
- break;
-
default:
break;
=20
@@ -1781,6 +1783,9 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64(muluh):
done =3D fold_mul_highpart(&ctx, op);
break;
+ case INDEX_op_mulu2_i32:
+ done =3D fold_mulu2_i32(&ctx, op);
+ break;
CASE_OP_32_64(nand):
done =3D fold_nand(&ctx, op);
break;
--=20
2.25.1