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We should choose one of these as canonical: %z = zext i1 %cmp to i32 %r = sub i32 %x, %z => %s = sext i1 %cmp to i32 %r = add i32 %x, %s The test comments assume that the zext form is better, but we can adjust that if we decide to go the other way. llvm-svn: 352515
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