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d81b8323ee
* Simplify a lot of code because type's cannot be in function symbol tables
* Fix memory leaks in handling of redefined function prototypes
* Don't use SymbolTable directly for stuff that we can go through the Module
for.
* Fix some minor bugs on obscure testcases like:
test/Feature/globalredefinition.ll
* Do not create GlobalVariable objects for forward referenced Functions!
* When forward referencing a function in a constant expression, do not create
a placeholder, add a bunch of references to it, then turn around and
replaceAllUsesOfWith on it with a new global, deleting the placeholder.
Instead, when we find the real definition of the global, just use the
placeholder instead of creating a new object.
This substantially simplifies the asmwriter and should even speed it up on
cases heavy in constantexprs (like C++, Java, MSIL)...
llvm-svn: 14830
This file is a placeholder; see docs/index.html for documentation.