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Commit 8d6a8c13 authored by Benjamin Kramer's avatar Benjamin Kramer
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SimplifyCFG: Track the number of used icmps when turning a icmp chain into a... 

SimplifyCFG: Track the number of used icmps when turning a icmp chain into a switch. If we used only one icmp, don't turn it into a switch.

Also prevent the switch-to-icmp transform from creating identity adds, noticed by Marius Wachtler.

llvm-svn: 125056
parent 36dd43fd
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