vmvr_v isn't handling the case where the host might be big endian and
the bytes to be copied aren't sequential.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Fixes: f714361ed7 ("target/riscv: rvv-1.0: implement vstart CSR")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
target/riscv/vector_helper.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index ca79571ae2..34ac4aa808 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -5075,9 +5075,17 @@ void HELPER(vmvr_v)(void *vd, void *vs2, CPURISCVState
*env, uint32_t desc)
uint32_t startb = env->vstart * sewb;
uint32_t i = startb;
+ if (HOST_BIG_ENDIAN && i % 8 != 0) {
+ uint32_t j = ROUND_UP(i, 8);
+ memcpy((uint8_t *)vd + H1(j - 1),
+ (uint8_t *)vs2 + H1(j - 1),
+ j - i);
+ i = j;
+ }
+
memcpy((uint8_t *)vd + H1(i),
(uint8_t *)vs2 + H1(i),
- maxsz - startb);
+ maxsz - i);