1# RUN: llc -O0 -mtriple arm64-- -run-pass=regbankselect %s -o - | FileCheck %s
2
3--- |
4  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5
6  define void @test_dbg_value() !dbg !5 {
7    ; Keep the dbg metadata live by referencing it in the IR.
8    call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !DIExpression()), !dbg !9
9    ret void
10  }
11
12  declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
13
14  !llvm.dbg.cu = !{!0}
15  !llvm.module.flags = !{!3, !4}
16
17  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "llvm", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
18  !1 = !DIFile(filename: "test.ll", directory: "/tmp")
19  !2 = !{}
20  !3 = !{i32 2, !"Dwarf Version", i32 4}
21  !4 = !{i32 2, !"Debug Info Version", i32 3}
22  !5 = distinct !DISubprogram(name: "test_dbg_value", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
23  !6 = !DISubroutineType(types: !2)
24  !7 = !DILocalVariable(name: "in", arg: 1, scope: !5, file: !1, line: 1, type: !8)
25  !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
26  !9 = !DILocation(line: 1, column: 1, scope: !5)
27...
28
29---
30# CHECK-LABEL: name: test_dbg_value
31name:            test_dbg_value
32legalized:       true
33# CHECK: registers:
34# CHECK-NEXT:  - { id: 0, class: gpr, preferred-register: '' }
35body: |
36  bb.0:
37    liveins: $w0
38    %0:_(s32) = COPY $w0
39    ; CHECK: DBG_VALUE debug-use %0(s32), debug-use $noreg, !7, !DIExpression(), debug-location !9
40    DBG_VALUE debug-use %0(s32), debug-use $noreg, !7, !DIExpression(), debug-location !9
41
42    ; CHECK: DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9
43    DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9
44...
45