llvm-6502/test/Transforms/LoopIndexSplit/PR4174.ll

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; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep clone
declare void @f()
define i32 @main() {
entry:
br label %head
head:
%i = phi i32 [0, %entry], [%i1, %tail]
call void @f()
%splitcond = icmp slt i32 %i, 2
br i1 %splitcond, label %yes, label %no
yes:
br label %tail
no:
br label %tail
tail:
%i1 = add i32 %i, 1
%exitcond = icmp slt i32 %i1, 4
br i1 %exitcond, label %head, label %exit
exit:
ret i32 0
}