IIRC this issue should be resolved?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99314
On Sun, Oct 31, 2021 at 5:34 PM <s...@isrc.iscas.ac.cn> wrote:
>
> From: linsinan1995 <47880367+linsinan1...@users.noreply.github.com>
>
> ---
> gcc/config/riscv/riscv.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c
> index 6aef3d3a6cf..0529b6d60cd 100644
> --- a/gcc/config/riscv/riscv.c
> +++ b/gcc/config/riscv/riscv.c
> @@ -3491,7 +3491,7 @@ riscv_block_move_loop (rtx dest, rtx src, unsigned
> HOST_WIDE_INT length,
> bool
> riscv_expand_block_move (rtx dest, rtx src, rtx length)
> {
> - if (CONST_INT_P (length))
> + if (CONST_INT_P (length) && INTVAL (length) >= 0)
> {
> unsigned HOST_WIDE_INT hwi_length = UINTVAL (length);
> unsigned HOST_WIDE_INT factor, align;
> --
> 2.25.1
>
