llvm-6502/test/Transforms/TailDup/2003-07-22-InfiniteLoop.ll

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; RUN: llvm-as < %s | opt -tailduplicate -disable-output
implementation
int %sum() {
entry:
br label %loopentry
loopentry:
%i.0 = phi int [ 1, %entry ], [ %tmp.3, %loopentry ]
%tmp.3 = add int %i.0, 1
br label %loopentry
}