File: pr32897.ll

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llvm-toolchain-15 1%3A15.0.6-4
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=newgvn %s | FileCheck %s

define void @tinkywinky(i64* %b) {
; CHECK-LABEL: @tinkywinky(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[BODY:%.*]]
; CHECK:       body:
; CHECK-NEXT:    store i64 undef, i64* [[B:%.*]]
; CHECK-NEXT:    br i1 undef, label [[BODY]], label [[END:%.*]]
; CHECK:       end:
; CHECK-NEXT:    br label [[BODY]]
;
entry:
  br label %body
body:
  %d.1 = phi i64* [ undef, %entry ], [ %d.1, %body ], [ %b, %end ]
  store i64 undef, i64* %d.1
  %b2 = load i64, i64* %b
  %or = or i64 %b2, 0
  store i64 %or, i64* %b
  br i1 undef, label %body, label %end
end:
  br label %body
}