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Re: RFC: remove find_replacement. (pr24912 / pr25335)
- From: Ian Lance Taylor <ian at airs dot com>
- To: Joern RENNECKE <joern dot rennecke at st dot com>
- Cc: kenner at nyu dot edu, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: 01 Feb 2006 09:05:01 -0800
- Subject: Re: RFC: remove find_replacement. (pr24912 / pr25335)
- References: <43DFC4A9.5070307@st.com>
Joern RENNECKE <joern.rennecke@st.com> writes:
> You introduced find_replacement in April 1992, presumably to solve the
> problem that the replacements are not applied at the time that reloads
> are being made. Since then its use has spread over a number of
> functions in the middle-end and in the backends, yet still new code is
> introduced that doesn't work as it is called while replacements are
> pending, but it doesn't use find_replacements. I think a much simpler
> solution, which should also be more robust in the long term, is to
> apply all the replacements before we start to emit reload insns.
Excellent idea.
Ian