2 ; RUN: llvm-mc -triple x86_64--linux %t.s -filetype=obj -o %t.o
3 ; RUN: FileCheck < %t.s %s
4 ; RUN: llvm-dwarfdump %t.o | FileCheck %s --check-prefix=DWARF
6 ; Unlike dbg.declare, dbg.addr should be lowered to DBG_VALUE instructions. It
7 ; is control-dependent.
9 ; CHECK-LABEL: use_dbg_addr:
10 ; CHECK: #DEBUG_VALUE: use_dbg_addr:o <- [DW_OP_deref] $rsp
12 ; DWARF: DW_TAG_variable
13 ; DWARF-NEXT: DW_AT_location (DW_OP_fbreg +0)
14 ; DWARF-NEXT: DW_AT_name ("o")
18 source_filename = "t.c"
19 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
20 target triple = "x86_64--linux"
22 %struct.Foo = type { i32 }
24 ; Function Attrs: noinline nounwind uwtable
25 define void @use_dbg_addr() #0 !dbg !7 {
27 %o = alloca %struct.Foo, align 4
28 call void @llvm.dbg.addr(metadata %struct.Foo* %o, metadata !10, metadata !15), !dbg !16
29 call void @escape_foo(%struct.Foo* %o), !dbg !17
33 ; Function Attrs: nounwind readnone speculatable
34 declare void @llvm.dbg.addr(metadata, metadata, metadata) #1
36 declare void @escape_foo(%struct.Foo*)
38 attributes #0 = { noinline nounwind uwtable }
39 attributes #1 = { nounwind readnone speculatable }
42 !llvm.module.flags = !{!3, !4, !5}
45 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
46 !1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild")
48 !3 = !{i32 2, !"Dwarf Version", i32 4}
49 !4 = !{i32 2, !"Debug Info Version", i32 3}
50 !5 = !{i32 1, !"wchar_size", i32 4}
51 !6 = !{!"clang version 6.0.0 "}
52 !7 = distinct !DISubprogram(name: "use_dbg_addr", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
53 !8 = !DISubroutineType(types: !9)
55 !10 = !DILocalVariable(name: "o", scope: !7, file: !1, line: 4, type: !11)
56 !11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 32, elements: !12)
58 !13 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !11, file: !1, line: 1, baseType: !14, size: 32)
59 !14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
61 !16 = !DILocation(line: 4, column: 14, scope: !7)
62 !17 = !DILocation(line: 5, column: 3, scope: !7)
63 !18 = !DILocation(line: 6, column: 1, scope: !7)