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clang-p2996/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
Owen Anderson 3231d13ddd A select between a constant and zero, when fed by a bit test, can be efficiently 
lowered using a series of shifts.
Fixes <rdar://problem/8285015>.

llvm-svn: 114599
2010-09-22 22:58:22 +00:00

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