Re: [PATCH v4] tcg/loongarch64: Add direct jump support

[Richard Henderson]

On 10/15/22 19:27, Qi Hu wrote:
> Similar to the ARM64, LoongArch has PC-relative instructions such as
> PCADDU18I. These instructions can be used to support direct jump for
> LoongArch. Additionally, if instruction "B offset" can cover the target
> address(target is within ±128MB range), a single "B offset" plus a nop
> will be used by "tb_target_set_jump_target".
>
> Cc: Richard Henderson<richard.henderson@linaro.org>
> Signed-off-by: Qi Hu<huqi@loongson.cn>
> ---
> Changes since v3:
> - Fix the offset check error which is pointed by WANG Xuerui.
> - Use TMP0 instead of T0.
> - Remove useless block due to direct jump support.
> - Add some assertions.
> ---
>   tcg/loongarch64/tcg-target.c.inc | 48 +++++++++++++++++++++++++++++---
>   tcg/loongarch64/tcg-target.h     |  9 ++++--
>   2 files changed, 50 insertions(+), 7 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~