From 13dbc826fd086dd40b7a4d3f1cb3f1bc8454b586 Mon Sep 17 00:00:00 2001
From: Frank Chang <frank.chang@sifive.com>
Date: Tue, 18 Jan 2022 09:45:08 +0800
Subject: [PATCH] target/riscv: rvv-1.0: Add Zve64f support for vsmul.vv and
vsmul.vx insns
All Zve* extensions support all vector fixed-point arithmetic
instructions, except that vsmul.vv and vsmul.vx are not supported
for EEW=64 in Zve64*.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220118014522.13613-6-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/insn_trans/trans_rvv.c.inc | 27 +++++++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index e64dddda28..8e493b7933 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -2123,8 +2123,31 @@ GEN_OPIVX_TRANS(vasub_vx, opivx_check)
GEN_OPIVX_TRANS(vasubu_vx, opivx_check)
/* Vector Single-Width Fractional Multiply with Rounding and Saturation */
-GEN_OPIVV_TRANS(vsmul_vv, opivv_check)
-GEN_OPIVX_TRANS(vsmul_vx, opivx_check)
+
+static bool vsmul_vv_check(DisasContext *s, arg_rmrr *a)
+{
+ /*
+ * All Zve* extensions support all vector fixed-point arithmetic
+ * instructions, except that vsmul.vv and vsmul.vx are not supported
+ * for EEW=64 in Zve64*. (Section 18.2)
+ */
+ return opivv_check(s, a) &&
+ (!has_ext(s, RVV) && s->ext_zve64f ? s->sew != MO_64 : true);
+}
+
+static bool vsmul_vx_check(DisasContext *s, arg_rmrr *a)
+{
+ /*
+ * All Zve* extensions support all vector fixed-point arithmetic
+ * instructions, except that vsmul.vv and vsmul.vx are not supported
+ * for EEW=64 in Zve64*. (Section 18.2)
+ */
+ return opivx_check(s, a) &&
+ (!has_ext(s, RVV) && s->ext_zve64f ? s->sew != MO_64 : true);
+}
+
+GEN_OPIVV_TRANS(vsmul_vv, vsmul_vv_check)
+GEN_OPIVX_TRANS(vsmul_vx, vsmul_vx_check)
/* Vector Single-Width Scaling Shift Instructions */
GEN_OPIVV_TRANS(vssrl_vv, opivv_check)
--
2.30.2