From: Max Chou <max.chou@sifive.com>
Date: Tue, 8 Apr 2025 10:39:33 +0000 (+0800)
Subject: target/riscv: rvv: Apply vext_check_input_eew to OPIVV/OPFVV(vext_check_sss) instructions
X-Git-Tag: v9.2.4~18
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=80eebc00f93c2cf2a35da4a86fb5d998ce162ab6;p=thirdparty%2Fqemu.git

target/riscv: rvv: Apply vext_check_input_eew to OPIVV/OPFVV(vext_check_sss) instructions

Handle the overlap of source registers with different EEWs.

Co-authored-by: Anton Blanchard <antonb@tenstorrent.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Max Chou <max.chou@sifive.com>
Message-ID: <20250408103938.3623486-6-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Cc: qemu-stable@nongnu.org
(cherry picked from commit fda68acb7761af40df78db18e44ca1ff20195fe0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---

diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index e8197f779e..2a4bededd1 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -432,6 +432,7 @@ static bool vext_check_ss(DisasContext *s, int vd, int vs, int vm)
 static bool vext_check_sss(DisasContext *s, int vd, int vs1, int vs2, int vm)
 {
     return vext_check_ss(s, vd, vs2, vm) &&
+           vext_check_input_eew(s, vs1, s->sew, vs2, s->sew, vm) &&
            require_align(vs1, s->lmul);
 }