File: infinite_loop_gen.ll

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llvm-toolchain-9 1%3A9.0.1-16.1
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; RUN: opt < %s -pgo-instr-gen -S -o -   | FileCheck %s

define void @foo() {
entry:
  br label %while.body
  ; CHECK: llvm.instrprof.increment

    while.body:                                       ; preds = %entry, %while.body
    ; CHECK: llvm.instrprof.increment
        call void (...) @bar() #2
    br label %while.body
}

declare void @bar(...)

attributes #0 = { nounwind }