forked from OSchip/llvm-project
Neg instruction removed. TODO item fulfilled.
llvm-svn: 155
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* Remove Neg instruction. It is equilivent to sub 0, <v>
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* Fix DCE to elminate br <c>, %L1, %L1 so that it can optimize the main of
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fib.ll better. Currently I have to do this to get best results:
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as < fib.ll | opt -inline -sccp -dce -sccp -dce |dis
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