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Re: [PATCH] Avoid emitting useless notes in GCSE
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Joern RENNECKE <joern dot rennecke at st dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Wed, 30 Mar 2005 20:39:36 +0200
- Subject: Re: [PATCH] Avoid emitting useless notes in GCSE
- References: <424AEE2A.40905@st.com>
> If a later pass, like RTL LICM, hoists out a constant, the REG_EQUAL note
> becomes relevant. reload needs such notes to put the constant back if the
> pseudo created by LICM failed to get a hard register.
Do you mean the pass that modifies the insn is not responsible for emitting
the note?
--
Eric Botcazou