Kenneth Zadeck wrote:
The kludge to handle them is documented in cp/name-lookup.c around line
670
Ugh.
IMO, the right thing here is that there should be only one FUNCTION_DECL
for a given function, ever, period. Default arguments are not part of
"the function" in C++; they are an aspect of particular declarations of
the function. The problem we're having is that we associate them with
the FUNCTION_DECL, rather than with the bindings (mappings from names to
FUNCTION_DECLs).
Unfortunately, fixing that properly is a rather large change.
It seems like a better way is to build a table of merges that need to be
done and find some place after the c++ front end is finished but before
the cgraph gets built and do one scan of the code and replace all of the
offending decls.
After the C++ front end is done, it would be OK to canoanicalize all
FUNCTION_DECLs with a single UID into one. A stupid way of doing that
would be to just walk the entire translation unit, and whenever you find
a reference to a non-canonical copy of the FUNCTION_DECL, re-point it at
the right one.
The C++ front end always operates in unit-at-a-time mode, so, yes, you
could do this when the C++ front end is finished.
--
Mark Mitchell
CodeSourcery, LLC
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