llvm/test/Assembler/zero-input-phi.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S < %s | FileCheck %s
; RUN: llvm-as < %s | llvm-dis | FileCheck %s

define void @dead_phi() {
; CHECK-LABEL: @dead_phi(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    ret void
; CHECK:       return:
; CHECK-NEXT:    [[R:%.*]] = phi i32
; CHECK-NEXT:    ret void
;
entry:
  ret void

return:
  %r = phi i32
  ret void
}