1 ; RUN: rm -rf %t %t2 2 ; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t 3 ; RUN: llvm-dwarfdump -name=vla_expr %t > %t2 4 ; RUN: llvm-dwarfdump -verbose %t >> %t2 5 ; RUN: cat %t2 | FileCheck %s 6 7 ; This test runs llvm-dwarfdump twice: 8 ; - First to get the debug entry for 'vla_expr'. 9 ; - Second to check that this is the entry referenced in DW_AT_count. 10 ; This way the test does not depend on the order in which DW_TAG_variables 11 ; are emitted. 12 13 ; CHECK: [[NODE:[0-9a-zA-Zx]+]]: DW_TAG_variable [4] 14 ; CHECK-NEXT: DW_AT_name {{.*}} "vla_expr" 15 ; CHECK: DW_AT_count [DW_FORM_ref4] (cu + {{.*}} => {[[NODE]]}) 16 17 define void @foo(i32 %n) !dbg !7 { 18 entry: 19 call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !12, metadata !19), !dbg !20 20 ret void, !dbg !21 21 } 22 23 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) 24 25 !llvm.dbg.cu = !{!0} 26 !llvm.module.flags = !{!3, !4, !5} 27 !llvm.ident = !{!6} 28 29 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.1", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 30 !1 = !DIFile(filename: "vla.c", directory: "/path/to") 31 !2 = !{} 32 !3 = !{i32 2, !"Dwarf Version", i32 4} 33 !4 = !{i32 2, !"Debug Info Version", i32 3} 34 !5 = !{i32 1, !"wchar_size", i32 4} 35 !6 = !{!"clang version 5.0.1"} 36 !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) 37 !8 = !DISubroutineType(types: !9) 38 !9 = !{null, !10} 39 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 40 !11 = !{!12, !13, !15} 41 !12 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 20, type: !10) 42 !13 = !DILocalVariable(name: "vla_expr", scope: !7, file: !1, line: 21, type: !14) 43 !14 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) 44 !15 = !DILocalVariable(name: "vla", scope: !7, file: !1, line: 21, type: !16) 45 !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, align: 32, elements: !17) 46 !17 = !{!18, !18} 47 !18 = !DISubrange(count: !13) 48 !19 = !DIExpression() 49 !20 = !DILocation(line: 20, column: 14, scope: !7) 50 !21 = !DILocation(line: 22, column: 1, scope: !7) 51
