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Re: memrefs_conflict_p () for REGs in alias.c
- From: Richard Henderson <rth at redhat dot com>
- To: George H <grgh007 at yahoo dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 1 Oct 2002 13:43:30 -0700
- Subject: Re: memrefs_conflict_p () for REGs in alias.c
- References: <20021001043357.10453.qmail@web13107.mail.yahoo.com>
On Mon, Sep 30, 2002 at 09:33:57PM -0700, George H wrote:
> I found that it always returns 1 for cse in case of REG...
Yes. alias.c computes function invariants. If a register
is set more than once, it varies, and thus there is no data
on what it points to.
r~