1; For http://llvm.org/bugs/show_bug.cgi?id=12942 2; There are two CUs coming from /tmp/foo.c in this module. Make sure it doesn't 3; blow llc up and produces something reasonable. 4; 5 6; REQUIRES: object-emission 7 8; RUN: %llc_dwarf %s -o %t -filetype=obj -O0 9; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s 10 11; ModuleID = 'test.bc' 12 13@str = private unnamed_addr constant [4 x i8] c"FOO\00" 14@str1 = private unnamed_addr constant [6 x i8] c"Main!\00" 15 16define void @foo() nounwind !dbg !5 { 17entry: 18 %puts = tail call i32 @puts(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @str, i32 0, i32 0)), !dbg !23 19 ret void, !dbg !25 20} 21 22declare i32 @puts(i8* nocapture) nounwind 23 24define i32 @main(i32 %argc, i8** nocapture %argv) nounwind !dbg !12 { 25entry: 26 tail call void @llvm.dbg.value(metadata i32 %argc, metadata !21, metadata !DIExpression()), !dbg !26 27 ; Avoid talking about the pointer size in debug info because that's target dependent 28 tail call void @llvm.dbg.value(metadata i8** %argv, metadata !22, metadata !DIExpression(DW_OP_deref, DW_OP_deref)), !dbg !27 29 %puts = tail call i32 @puts(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @str1, i32 0, i32 0)), !dbg !28 30 tail call void @foo() nounwind, !dbg !30 31 ret i32 0, !dbg !31 32} 33 34declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone 35 36!llvm.dbg.cu = !{!0, !9} 37!llvm.module.flags = !{!33} 38 39!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.2 (trunk 156513)", isOptimized: true, emissionKind: FullDebug, file: !32, enums: !1, retainedTypes: !1, globals: !1, imports: !1) 40!1 = !{} 41!5 = distinct !DISubprogram(name: "foo", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !32, scope: !6, type: !7, retainedNodes: !1) 42!6 = !DIFile(filename: "foo.c", directory: "/tmp") 43!7 = !DISubroutineType(types: !8) 44!8 = !{null} 45!9 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.2 (trunk 156513)", isOptimized: true, emissionKind: FullDebug, file: !32, enums: !1, retainedTypes: !1, globals: !1, imports: !1) 46!12 = distinct !DISubprogram(name: "main", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !9, scopeLine: 11, file: !32, scope: !6, type: !13, retainedNodes: !19) 47!13 = !DISubroutineType(types: !14) 48!14 = !{!15, !15, !18} 49!15 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 50!18 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 51!19 = !{!21, !22} 52!21 = !DILocalVariable(name: "argc", line: 11, arg: 1, scope: !12, file: !6, type: !15) 53!22 = !DILocalVariable(name: "argv", line: 11, arg: 2, scope: !12, file: !6, type: !18) 54!23 = !DILocation(line: 6, column: 3, scope: !24) 55!24 = distinct !DILexicalBlock(line: 5, column: 16, file: !32, scope: !5) 56!25 = !DILocation(line: 7, column: 1, scope: !24) 57!26 = !DILocation(line: 11, column: 14, scope: !12) 58!27 = !DILocation(line: 11, column: 26, scope: !12) 59!28 = !DILocation(line: 12, column: 3, scope: !29) 60!29 = distinct !DILexicalBlock(line: 11, column: 34, file: !32, scope: !12) 61!30 = !DILocation(line: 13, column: 3, scope: !29) 62!31 = !DILocation(line: 14, column: 3, scope: !29) 63!32 = !DIFile(filename: "foo.c", directory: "/tmp") 64 65; This test is simple to be cross platform (many targets don't yet have 66; sufficiently good DWARF emission and/or dumping) 67; CHECK: {{DW_TAG_compile_unit}} 68; CHECK: {{foo\.c}} 69 70!33 = !{i32 1, !"Debug Info Version", i32 3} 71