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RE: Deep CSE bug!
- From: "Dave Korn" <dk at artimi dot com>
- To: "'Dave Korn'" <dk at artimi dot com>,"'Roger Sayle'" <roger at eyesopen dot com>
- Cc: <gcc at gcc dot gnu dot org>
- Date: Mon, 21 Jun 2004 14:53:29 +0100
- Subject: RE: Deep CSE bug!
> -----Original Message-----
> From: gcc-owner On Behalf Of Dave Korn
> Sent: 21 June 2004 11:16
> > My understanding (and working hypothesis) of REG_EQUAL notes
> > is that they
> > describe the SET_SRC of a SET instruction, and their
> interpretation is
> > completely independent of the set's target, SET_DEST.
>
> Ah, that's pretty much the opposite way round to what I had
> expected! I
> was working under the assumption that it referred to 'what
> the SRC will equal after this insn until it next gets set'.
^^^^
I meant to say 'what the DEST will equal'. D'oh.
cheers,
DaveK
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