On Jun 4, 2011, Steven Bosscher wrote:
> I'm curious, though: What CFG changes or other transformations are
> performed without this patch? It could be a sign of a missed
> optimization before CPROP. Have you looked at that too?
IIRC the transformation that was possible but that hadn't been per
> This patch fixes the problem, disregarding changes to debug insns as
> “changed”. Regstrapped on x86_64-linux-gnu and i686-linux-gnu. Ok to
> install?
Yes, thanks.
--
Eric Botcazou
On Sat, Jun 4, 2011 at 2:50 PM, Alexandre Oliva wrote:
> If cprop regards changes to debug insns as “changed”, it will perform
> cfg optimizations and more, even if no non-debug insns were changed,
> causing divergence between -g and -g0 compilations.
>
> This was observed during bootstrap-debug-l
If cprop regards changes to debug insns as “changed”, it will perform
cfg optimizations and more, even if no non-debug insns were changed,
causing divergence between -g and -g0 compilations.
This was observed during bootstrap-debug-lib of the SSA coalesce patch,
building a-strsea.adb with -fcompar
