; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -S -passes=loop-deletion < %s | FileCheck %s

define void @foo(ptr %P) #0 {
; CHECK-LABEL: define void @foo(
; CHECK-SAME: ptr [[P:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  [[BB:.*:]]
; CHECK-NEXT:    [[P_PROMOTED2:%.*]] = load ptr, ptr [[P]], align 8
; CHECK-NEXT:    unreachable
; CHECK:       [[MERGE:.*:]]
; CHECK-NEXT:    store ptr poison, ptr [[P]], align 8
; CHECK-NEXT:    unreachable
;
bb:
  %p.promoted2 = load ptr, ptr %P, align 8
  br label %bb1

bb1:                                              ; preds = %bb1.backedge, %bb
  %p.ph = phi ptr [ %P, %bb ], [ %p.promoted2, %bb1.backedge ]
  br label %bb1.backedge

bb1.backedge:                                     ; preds = %bb1, %merge
  br label %bb1

merge:                                            ; No predecessors!
  store ptr %p.ph, ptr %P, align 8
  br label %bb1.backedge
}

attributes #0 = { willreturn }