tcg/optimize: check types in copy propagation
The copy propagation doesn't check the types of the temps during copy propagation. However TCG is using the mov_i32 for the i64 to i32 conversion and thus the two are not equivalent. With this patch tcg_opt_gen_mov() doesn't consider two temps of different type as copies anymore. So far it seems the optimization was not aggressive enough to trigger this bug, but it will be triggered later in this series once the copy propagation is improved. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Showing
想要评论请 注册 或 登录