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Commit f96ae684 authored by Jakob Stoklund Olesen's avatar Jakob Stoklund Olesen
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Turn the EdgeBundles class into a stand-alone machine CFG analysis pass.

The analysis will be needed by both the greedy register allocator and the
X86FloatingPoint pass. It only needs to be computed once when the CFG doesn't
change.

This pass is very fast, usually showing up as 0.0% wall time.

llvm-svn: 122832
parent 3aa19e9a
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