# RUN: not --crash llc %s -march=x86-64 -run-pass=machineverifier -o - 2>&1 | FileCheck %s
#
# REQUIRES: x86-registered-target
#
# CHECK: Instruction has a duplicated value tracking number
--- |
  define i32 @test(i32 %bar) local_unnamed_addr !dbg !7 {
  entry:
    ret i32 0, !dbg !12
  }

  !llvm.dbg.cu = !{!0}
  !llvm.module.flags = !{!3, !4, !5, !6}
  !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
  !1 = !DIFile(filename: "foo.cpp", directory: ".")
  !2 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
  !3 = !{i32 2, !"Dwarf Version", i32 4}
  !4 = !{i32 2, !"Debug Info Version", i32 3}
  !5 = !{i32 1, !"wchar_size", i32 2}
  !6 = !{i32 7, !"PIC Level", i32 2}
  !7 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 6, type: !8, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
  !8 = !DISubroutineType(types: !9)
  !9 = !{!2, !2}
  !10 = !{!11}
  !11 = !DILocalVariable(name: "baz", scope: !7, file: !1, line: 7, type: !2)
  !12 = !DILocation(line: 10, scope: !7)
...
---
name: test
tracksRegLiveness: true
liveins:
  - { reg: '$rdi', virtual-reg: '' }
body:  |
  bb.0:
  liveins: $rdi, $rax
    $rbp = MOV64rr $rdi, debug-instr-number 1, debug-location !12
    dead $rcx = MOV64ri 0, debug-instr-number 1, debug-location !12
    CMP64ri8 renamable $rax, 1, implicit-def $eflags
    RETQ $rax
...