llvm/test/DebugInfo/KeyInstructions/X86/parse.mir

# RUN: llc %s --run-pass=none -o - | FileCheck %s

## Check the MIR parser understands atomGroup and atomRank.

# CHECK: RET64 $eax, debug-location !DILocation(line: 2, scope: ![[#]], atomGroup: 1, atomRank: 2)

--- |
  target triple = "x86_64-unknown-linux-gnu"
  define hidden noundef i32 @p() local_unnamed_addr !dbg !5 {
  entry:
    ret i32 0
  }

  declare void @_Z12prologue_endv() local_unnamed_addr

  !llvm.dbg.cu = !{!0}
  !llvm.module.flags = !{!2, !3}
  !llvm.ident = !{!4}

  !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_17, file: !1, producer: "clang version 19.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None)
  !1 = !DIFile(filename: "test.cpp", directory: "/")
  !2 = !{i32 7, !"Dwarf Version", i32 5}
  !3 = !{i32 2, !"Debug Info Version", i32 3}
  !4 = !{!"clang version 19.0.0"}
  !5 = distinct !DISubprogram(name: "p", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
  !6 = !DISubroutineType(types: !7)
  !7 = !{}

...
---
name:            p
alignment:       16
body:             |
  bb.0.entry:
    liveins: $edx, $esi, $rbp, $rbx
    renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
    RET64 $eax, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 2)

...