Richard Smith 4ff9ff974c When marking virtual functions as used for a class' vtable, mark all functions ...

which will appear in the vtable as used, not just those ones which were
declared within the class itself. Fixes an issue reported as comment#3 in
PR12763 -- we sometimes assert in codegen if we try to emit a reference to a
function declaration which we've not marked as referenced. This also matches
gcc's observed behavior.

llvm-svn: 159895

2012-07-07 06:59:51 +00:00

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