tree 5e8db76ecc1d9dbc8e07dd87a2d18b7c7dc528d9
parent c9759e80f45e5690c3ed3b69c2e9ffd5a1bffd9c
author Dan Gohman <gohman@apple.com> 1245683368 +0000
committer Dan Gohman <gohman@apple.com> 1245683368 +0000

Make use of getUMinFromMismatchedTypes when computing backedge-taken
counts for loops with multiple exits, replacing more conservative code
which only handled constants. This is derived from a patch by
Nick Lewycky.

This also fixes llc aborts in ClamAV and others, as
getUMinFromMismatchedTypes takes care of balancing the types before
working with them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73884 91177308-0d34-0410-b5e6-96231b3b80d8