1 ; RUN: llc < %s | FileCheck %s
2 ; RUN: llc < %s -filetype=obj | llvm-dwarfdump -v - --debug-info | FileCheck %s --check-prefix=DWARF
4 ; This should use the frame index side table for allocas, not DBG_VALUE
5 ; instructions. For SDAG ISel, this test would see an SDNode materializing the
6 ; argument to escape_foo and we'd get DBG_VALUE MachineInstr.
8 ; CHECK-LABEL: use_dbg_declare:
9 ; CHECK-NOT: #DEBUG_VALUE
11 ; DWARF: DW_TAG_variable
12 ; DWARF-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg +0)
13 ; DWARF-NEXT: DW_AT_name [DW_FORM_strp] ( {{.*}} = "o")
17 source_filename = "t.c"
18 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
19 target triple = "x86_64--linux"
21 %struct.Foo = type { i32 }
23 ; Function Attrs: noinline nounwind uwtable
24 define void @use_dbg_declare() #0 !dbg !7 {
26 %o = alloca %struct.Foo, align 4
27 call void @llvm.dbg.declare(metadata %struct.Foo* %o, metadata !10, metadata !15), !dbg !16
28 call void @escape_foo(%struct.Foo* %o), !dbg !17
32 ; Function Attrs: nounwind readnone speculatable
33 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
35 declare void @escape_foo(%struct.Foo*)
37 attributes #0 = { noinline nounwind uwtable }
38 attributes #1 = { nounwind readnone speculatable }
41 !llvm.module.flags = !{!3, !4, !5}
44 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
45 !1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild")
47 !3 = !{i32 2, !"Dwarf Version", i32 4}
48 !4 = !{i32 2, !"Debug Info Version", i32 3}
49 !5 = !{i32 1, !"wchar_size", i32 4}
50 !6 = !{!"clang version 6.0.0 "}
51 !7 = distinct !DISubprogram(name: "use_dbg_declare", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
52 !8 = !DISubroutineType(types: !9)
54 !10 = !DILocalVariable(name: "o", scope: !7, file: !1, line: 4, type: !11)
55 !11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 32, elements: !12)
57 !13 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !11, file: !1, line: 1, baseType: !14, size: 32)
58 !14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
60 !16 = !DILocation(line: 4, column: 14, scope: !7)
61 !17 = !DILocation(line: 5, column: 3, scope: !7)
62 !18 = !DILocation(line: 6, column: 1, scope: !7)