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Re: PING (mostly RTL/expand)
- From: Hans-Peter Nilsson <hans-peter dot nilsson at axis dot com>
- To: paolo dot bonzini at gmail dot com
- Cc: gcc-patches at gcc dot gnu dot org, hans-peter dot nilsson at axis dot com
- Date: Thu, 4 Jun 2009 20:43:24 +0200
- Subject: Re: PING (mostly RTL/expand)
> Date: Thu, 04 Jun 2009 15:21:55 +0200
> From: Paolo Bonzini <paolo.bonzini@gmail.com>
> [PATCH] Fix rare but severe delay slot scheduling bug PR40086
> http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00811.html
As Eric B pointed out, this has been reviewed but Eric required
that I check that the correction doesn't cause significant
pessimization. The correction only affects changes in the
second iteration, so I'm convinced that the suggested testing
will confirm that such code changes happen about as rarely as
the bug bites. OTOH, the suggested
s/next_active_insn/next_real_insn/ change in the PR trail might
be more invasive, but that's not the submitted one.
brgds, H-P