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Re: C++ compile-time regressions (was: GCC 3.0.1 Status Report)
- To: Joe Buck <jbuck at synopsys dot com>
- Subject: Re: C++ compile-time regressions (was: GCC 3.0.1 Status Report)
- From: Gabriel Dos Reis <gdr at codesourcery dot com>
- Date: 24 Jul 2001 19:19:05 +0200
- Cc: pfeifer at dbai dot tuwien dot ac dot at (Gerald Pfeifer), mark at codesourcery dot com (Mark Mitchell), gcc at gcc dot gnu dot org (gcc at gcc dot gnu dot org)
- Organization: CodeSourcery, LLC
- References: <200107241708.KAA08101@atrus.synopsys.com>
Joe Buck <jbuck@synopsys.COM> writes:
| > I'm rather sure, though, that g++ is not generating efficient code for
| > complicated, nested STL and STL-like structures in the presence of
| > libstdc++-v3 (iterators are now classes instead of pointers).
|
| But the classes have one member, so we should still be getting equivalent
| code, provided that we get ADDRESSOF working as well as it did in 2.95.x.
Now that we have a branch for doing tree-based optimization, what do
you think about trying to implement "scalar replacement of aggregates"
optimization and see how good we can do with STL-like structures?
-- Gaby
CodeSourcery, LLC http://www.codesourcery.com