From a7209a19e2d730fed5f52fda44aaa24e8de8a81c Mon Sep 17 00:00:00 2001
From: gubin <gubin_yewu@cmss.chinamobile.com>
Date: Sat, 11 Jan 2025 10:46:10 +0800
Subject: [PATCH] target/riscv/vector_helper.c: set vstart = 0 in
 GEN_VEXT_VSLIDEUP_VX()

cherry-pick from d3646e31ce6d1e02e46e6eabdbc2e637c0cbece7

The helper isn't setting env->vstart = 0 after its execution, as it is
expected from every vector instruction that completes successfully.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-ID: <20240314175704.478276-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: gubin <gubin_yewu@cmss.chinamobile.com>
---
 target/riscv/vector_helper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 42ffd3a68a..e69b68ba43 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -4770,6 +4770,7 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2,         \
         }                                                                 \
         *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i - offset));          \
     }                                                                     \
+    env->vstart = 0;                                                      \
     /* set tail elements to 1s */                                         \
     vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz);              \
 }
-- 
Gitee