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Re: [PR/13274] Fold subregs that are produced by zero_extend
On Tue, Jan 20, 2004 at 12:28:43PM +0100, Paolo Bonzini wrote:
> + && subreg_lsb (x) / BITS_PER_UNIT
> + >= GET_MODE_SIZE (GET_MODE (XEXP (elt->exp, 0))))
Better. Use GET_MODE_BITSIZE and you don't have to divide either.
Roger, what do you think? Were you asking him to do something like
simplify_subreg (GET_MODE (x), elt->exp,
GET_MODE (elt->exp), SUBREG_BYTE (x));
? As otherwise I can't see a way into the rtx folder at all.