| ; RUN: rm -rf %t %t2 |
| ; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t |
| ; RUN: llvm-dwarfdump -name=vla_expr %t > %t2 |
| ; RUN: llvm-dwarfdump -verbose %t >> %t2 |
| ; RUN: cat %t2 | FileCheck %s |
| |
| ; This test runs llvm-dwarfdump twice: |
| ; - First to get the debug entry for 'vla_expr'. |
| ; - Second to check that this is the entry referenced in DW_AT_count. |
| ; This way the test does not depend on the order in which DW_TAG_variables |
| ; are emitted. |
| |
| ; CHECK: [[NODE:[0-9a-zA-Zx]+]]: DW_TAG_variable [4] |
| ; CHECK-NEXT: DW_AT_name {{.*}}"vla_expr" |
| ; CHECK: DW_AT_count [DW_FORM_ref4] (cu + {{.*}} => {[[NODE]]}) |
| |
| define void @foo(i32 %n) !dbg !7 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !12, metadata !19), !dbg !20 |
| ret void, !dbg !21 |
| } |
| |
| declare void @llvm.dbg.value(metadata, i64, metadata, metadata) |
| |
| !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 5.0.1", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "vla.c", directory: "/path/to") |
| !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 5.0.1"} |
| !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 20, type: !8, isLocal: false, isDefinition: true, scopeLine: 20, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{null, !10} |
| !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !11 = !{!12, !13, !15} |
| !12 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 20, type: !10) |
| !13 = !DILocalVariable(name: "vla_expr", scope: !7, file: !1, line: 21, type: !14) |
| !14 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) |
| !15 = !DILocalVariable(name: "vla", scope: !7, file: !1, line: 21, type: !16) |
| !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, align: 32, elements: !17) |
| !17 = !{!18, !18} |
| !18 = !DISubrange(count: !13) |
| !19 = !DIExpression() |
| !20 = !DILocation(line: 20, column: 14, scope: !7) |
| !21 = !DILocation(line: 22, column: 1, scope: !7) |