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r142168 | chandlerc | 2011-10-16 18:11:57 -0700 (Sun, 16 Oct 2011) | 8 lines
Add a routine to swap branch instruction operands, and update any
profile metadata at the same time. Use it to preserve metadata attached
to a branch when re-writing it in InstCombine.
Add metadata to the canonicalize_branch InstCombine test, and check that
it is tranformed correctly.
Reviewed by Nick Lewycky!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_30@142545 91177308-0d34-0410-b5e6-96231b3b80d8