| ;; Run twice -- once with DBG_VALUEs, once with instruction referencing. |
| ; RUN: llc %s -o %t.s -experimental-debug-variable-locations=false |
| ; RUN: llvm-mc -triple x86_64--linux %t.s -filetype=obj -o %t.o |
| ; RUN: FileCheck < %t.s %s |
| ; RUN: llvm-dwarfdump %t.o | FileCheck %s --check-prefix=DWARF |
| ; RUN: llc %s -o %t.s -experimental-debug-variable-locations=true |
| ; RUN: llvm-mc -triple x86_64--linux %t.s -filetype=obj -o %t.o |
| ; RUN: FileCheck < %t.s %s |
| ; RUN: llvm-dwarfdump %t.o | FileCheck %s --check-prefix=DWARF |
| |
| |
| ; Unlike dbg.declare, dbg.addr should be lowered to DBG_VALUE instructions. It |
| ; is control-dependent. |
| |
| ; CHECK-LABEL: use_dbg_addr: |
| ; CHECK: #DEBUG_VALUE: use_dbg_addr:o <- [$rsp+0] |
| ; CHECK-NOT: #DEBUG_VALUE: |
| |
| ; DWARF: DW_TAG_variable |
| ; DWARF-NEXT: DW_AT_location (DW_OP_fbreg +0) |
| ; DWARF-NEXT: DW_AT_name ("o") |
| |
| |
| ; ModuleID = 't.c' |
| source_filename = "t.c" |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64--linux" |
| |
| %struct.Foo = type { i32 } |
| |
| ; Function Attrs: noinline nounwind uwtable |
| define void @use_dbg_addr() #0 !dbg !7 { |
| entry: |
| %o = alloca %struct.Foo, align 4 |
| call void @llvm.dbg.addr(metadata %struct.Foo* %o, metadata !10, metadata !15), !dbg !16 |
| call void @escape_foo(%struct.Foo* %o), !dbg !17 |
| ret void, !dbg !18 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.addr(metadata, metadata, metadata) #1 |
| |
| declare void @escape_foo(%struct.Foo*) |
| |
| attributes #0 = { noinline nounwind uwtable } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{!"clang version 6.0.0 "} |
| !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) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{null} |
| !10 = !DILocalVariable(name: "o", scope: !7, file: !1, line: 4, type: !11) |
| !11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 32, elements: !12) |
| !12 = !{!13} |
| !13 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !11, file: !1, line: 1, baseType: !14, size: 32) |
| !14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !15 = !DIExpression() |
| !16 = !DILocation(line: 4, column: 14, scope: !7) |
| !17 = !DILocation(line: 5, column: 3, scope: !7) |
| !18 = !DILocation(line: 6, column: 1, scope: !7) |