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[SCEV] NFC : Removing unnecessary check on outgoing branches of a bra…
…nch instr. Summary: For a given loop, getLoopLatch returns a non-null value when a loop has only one latch block. In the modified context a check on both the outgoing branches of a terminator instruction (of latch) to same header is redundant. Reviewers: jbhateja Reviewed By: jbhateja Subscribers: sanjoy Differential Revision: https://reviews.llvm.org/D40460 llvm-svn: 318991
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