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A lot of this stuff has been done. Remove the done items

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3915 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2002-09-24 16:15:36 +00:00
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* Rewrite the llvm parser/lexer in http://www.antlr.org when time permits.
They actually do C++. Imagine that.
* Fix DCE to elminate br <c>, %L1, %L1 so that it can optimize the main of
fib.ll better. Currently I have to do this to get best results:
as < fib.ll | opt -inline -sccp -dce -sccp -dce |dis
* fix the constprop br <x> <dst1> <dst1> case. Must handle PHI nodes correctly
* Think about whether edge split SSA form would be useful to do.
* The dropAllReferences code can be a noop when NDEBUG!!!
* pred/succ iterators on basic blocks don't handle switch statements correctly
* Provide a pass that eliminates critical edges from the CFG
* Need a way to attach bytecode block info at various levels of asm code.
* Recognize and save comments in assembly and bytecode format
* Encode line number table in bytecode (like #line), optional table