[Bug target/47744] [x32] ICE: in reload_cse_simplify_operands, at postreload.c:403

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47744

--- Comment #19 from Uros Bizjak <ubizjak at gmail dot com> 2011-07-17 22:04:31 
UTC ---
(In reply to comment #18)

> This is the same as
> 
> ---
> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
> index c728c51..414b528 100644
> --- a/gcc/config/i386/i386.c
> +++ b/gcc/config/i386/i386.c
> @@ -11380,7 +11382,6 @@ ix86_decompose_address (rtx addr, struct ix86_address
> *out)
>            break;
> 
>          case REG:
> -        case SUBREG:
>            if (!base)
>          base = op;
>            else if (!index)

No!

Subreg of a reg is perfectly valid RTX here.