ubsan: microblaze: left shift cannot be represented in type 'int'

[Michael Eager]

On 12/15/19 11:10 PM, Alan Modra wrote:
> 	* microblaze-dis.c (read_insn_microblaze): Avoid signed overflow.
> 
> diff --git a/opcodes/microblaze-dis.c b/opcodes/microblaze-dis.c
> index 2b3aa8e078..5df7ae497e 100644
> --- a/opcodes/microblaze-dis.c
> +++ b/opcodes/microblaze-dis.c
> @@ -200,9 +200,11 @@ read_insn_microblaze (bfd_vma memaddr,
>       }
>   
>     if (info->endian == BFD_ENDIAN_BIG)
> -    inst = (ibytes[0] << 24) | (ibytes[1] << 16) | (ibytes[2] << 8) | ibytes[3];
> +    inst = (((unsigned) ibytes[0] << 24) | (ibytes[1] << 16)
> +	    | (ibytes[2] << 8) | ibytes[3]);
>     else if (info->endian == BFD_ENDIAN_LITTLE)
> -    inst = (ibytes[3] << 24) | (ibytes[2] << 16) | (ibytes[1] << 8) | ibytes[0];
> +    inst = (((unsigned) ibytes[3] << 24) | (ibytes[2] << 16)
> +	    | (ibytes[1] << 8) | ibytes[0]);
>     else
>       abort ();


OK

-- 
Michael Eager    eager@eagerm.com
1960 Park Blvd., Palo Alto, CA 94306