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Re: Phase ordering in compiler

From: Andrew Haley <aph at redhat dot com>
To: SANKAR <chnabsankar at yahoo dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Tue, 23 Oct 2012 09:28:32 +0100
Subject: Re: Phase ordering in compiler
References: <1350888472063-880744.post@n5.nabble.com> <CAKOQZ8wWhgCTxYoqZrC9Oa24VxwuJYMdAD47JDfRUPOqyNYiwg@mail.gmail.com> <1350969660440-881069.post@n5.nabble.com>

On 10/23/2012 06:21 AM, SANKAR wrote:
> When there is an impact of repeating optimisation options or reordering the
> optimisation options in GCC, is this pass ordering enabled through command
> line? 

Not usually, because passes often rely on changes made before them.
Sometimes a pass will work if reordered or duplicated, sometimes not.

Andrew.

References:
- Phase ordering in compiler
  - From: vikram1729
- Re: Phase ordering in compiler
  - From: Ian Lance Taylor
- Re: Phase ordering in compiler
  - From: SANKAR

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