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Re: [PATCH, committed] PR/41812: revert wrong multiple definitions optimizations
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Paolo Bonzini <bonzini at gnu dot org>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 2 Nov 2009 20:32:31 +0100
- Subject: Re: [PATCH, committed] PR/41812: revert wrong multiple definitions optimizations
- References: <4AE83DAE.2030705@gnu.org>
> Luckily the optimization was committed as a separate patch, so the cause
> was easy to ascertain given the bisection result, and the reversion of
> the patch is trivial.
This had a massive effect on the compilation of insn-recog.o at -O2 -g on x86:
peak memory usage went from ~600MB to ~1.1GB (--enable-checking=yes,rtl); it's
only ~900MB at bare -O2.
--
Eric Botcazou