Jakob Stoklund Olesen d1bfc30198 Check all overlaps when looking for used registers.
A function using any RC alias is enough to enable the ExeDepsFix pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144636 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15 08:20:43 +00:00
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