File: loop-pass-ordering.ll

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llvm-toolchain-20 1%3A20.1.8-1
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; RUN: opt -disable-output -debug-pass-manager \
; RUN:     -passes='no-op-loop' %s 2>&1 \
; RUN:     | FileCheck %s

;            @f()
;           /    \
;       loop.0   loop.1
;      /      \        \
; loop.0.0  loop.0.1  loop.1.0
;
; CHECK: Running pass: NoOpLoopPass on loop %loop.0.0 in function f
; CHECK: Running pass: NoOpLoopPass on loop %loop.0.1 in function f
; CHECK: Running pass: NoOpLoopPass on loop %loop.0 in function f
; CHECK: Running pass: NoOpLoopPass on loop %loop.1.0 in function f
; CHECK: Running pass: NoOpLoopPass on loop %loop.1 in function f

define void @f(i1 %arg) {
entry:
  br label %loop.0
loop.0:
  br i1 %arg, label %loop.0.0, label %loop.1
loop.0.0:
  br i1 %arg, label %loop.0.0, label %loop.0.1
loop.0.1:
  br i1 %arg, label %loop.0.1, label %loop.0
loop.1:
  br i1 %arg, label %loop.1, label %loop.1.bb1
loop.1.bb1:
  br i1 %arg, label %loop.1, label %loop.1.bb2
loop.1.bb2:
  br i1 %arg, label %end, label %loop.1.0
loop.1.0:
  br i1 %arg, label %loop.1.0, label %loop.1
end:
  ret void
}