[Bug c++/23372] [4.0/4.1/4.2 Regression] Temporary aggregate copy not elided when passing parameters by value

[pinskia at gcc dot gnu dot org]

------- Comment #30 from pinskia at gcc dot gnu dot org  2006-02-08 15:16 -------
(In reply to comment #29)
> This patch (on top of infrastructure provided by the general copyprop
> improvements) modifies forwprop to do copy propagation of aggregates.  Untested
> apart from the fact it fixes all the testcases here.

Forward prop is really a semi hack waiting for a true combiner.  And this seems
like the wrong spot anyways as forward prop is only really for scalars really.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23372