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Re: Does zero_extend (const_int) *ever* have a valid meaning
- From: Richard Henderson <rth at redhat dot com>
- To: Richard dot Earnshaw at arm dot com
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 20 Sep 2002 09:49:34 -0700
- Subject: Re: Does zero_extend (const_int) *ever* have a valid meaning
- References: <200209201637.g8KGbvB06591@pc960.cambridge.arm.com>
On Fri, Sep 20, 2002 at 05:37:57PM +0100, Richard Earnshaw wrote:
> So, is cse correct in trying to make this substitution?
No, not without other simplifications. Zero_extend requires
an inner mode, which const_int doesn't have.
r~