[gimple-classes, committed 4/6] tree-ssa-tail-merge.c: Use gassign

Eric Botcazou ebotcazou@adacore.com
Tue Nov 11 08:31:00 GMT 2014

> I just don't like all the as_a/is_a stuff enforced everywhere,
> it means more typing, more temporaries, more indentation.
> So, as I view it, instead of the checks being done cheaply (yes, I think
> the gimple checking as we have right now is very cheap) under the
> hood by the accessors (gimple_assign_{lhs,rhs1} etc.), those changes
> put the burden on the developers, who has to check that manually through
> the as_a/is_a stuff everywhere, more typing and uglier syntax.
> I just don't see that as a step forward, instead a huge step backwards.
> But perhaps I'm alone with this.

IMO that's the sort of things some of us were afraid of when the C++ switch 
was being discussed and IIRC we were told this would not happen...

Eric Botcazou

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