1; This checks that .debug_info can be generated in the DWARF64 format. 2 3; RUN: llc -mtriple=x86_64 -dwarf-version=3 -dwarf64 -filetype=obj %s -o %t3 4; RUN: llvm-dwarfdump -debug-abbrev -debug-info -v %t3 | \ 5; RUN: FileCheck %s --check-prefixes=CHECK,DWARFv3 6 7; RUN: llc -mtriple=x86_64 -dwarf-version=4 -dwarf64 -filetype=obj %s -o %t4 8; RUN: llvm-dwarfdump -debug-abbrev -debug-info -v %t4 | \ 9; RUN: FileCheck %s --check-prefixes=CHECK,DWARFv4 10 11; CHECK: .debug_abbrev contents: 12; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_yes 13; CHECK-NEXT: DW_AT_producer DW_FORM_strp 14; CHECK-NEXT: DW_AT_language DW_FORM_data2 15; CHECK-NEXT: DW_AT_name DW_FORM_strp 16; DWARFv3-NEXT: DW_AT_stmt_list DW_FORM_data8 17; DWARFv4-NEXT: DW_AT_stmt_list DW_FORM_sec_offset 18; CHECK-NEXT: DW_AT_comp_dir DW_FORM_strp 19; CHECK: [2] DW_TAG_variable DW_CHILDREN_no 20; CHECK-NEXT: DW_AT_name DW_FORM_strp 21; CHECK-NEXT: DW_AT_type DW_FORM_ref4 22; CHECK: [3] DW_TAG_base_type DW_CHILDREN_no 23; CHECK-NEXT: DW_AT_name DW_FORM_strp 24 25; CHECK: .debug_info contents: 26; CHECK: Compile Unit: length = 0x{{([[:xdigit:]]{16})}}, format = DWARF64, 27; CHECK: DW_TAG_compile_unit [1] * 28; CHECK-NEXT: DW_AT_producer [DW_FORM_strp] ( .debug_str[0x{{([[:xdigit:]]{16})}}] = "clang version 12.0.0") 29; CHECK-NEXT: DW_AT_language [DW_FORM_data2] (DW_LANG_C99) 30; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{([[:xdigit:]]{16})}}] = "foo.c") 31; DWARFv3-NEXT: DW_AT_stmt_list [DW_FORM_data8] (0x0000000000000000) 32; DWARFv4-NEXT: DW_AT_stmt_list [DW_FORM_sec_offset] (0x0000000000000000) 33; CHECK-NEXT: DW_AT_comp_dir [DW_FORM_strp] ( .debug_str[0x{{([[:xdigit:]]{16})}}] = "/tmp") 34; CHECK: DW_TAG_variable [2] 35; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{([[:xdigit:]]{16})}}] = "foo") 36; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.+}} => {{.+}} "int") 37; CHECK: DW_TAG_base_type [3] 38; CHECK-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{([[:xdigit:]]{16})}}] = "int") 39 40; IR generated and reduced from: 41; $ cat foo.c 42; int foo; 43; $ clang -g -S -emit-llvm foo.c -o foo.ll 44 45target triple = "x86_64-unknown-linux-gnu" 46 47@foo = dso_local global i32 0, align 4, !dbg !0 48 49!llvm.dbg.cu = !{!2} 50!llvm.module.flags = !{!7, !8, !9} 51!llvm.ident = !{!10} 52 53!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 54!1 = distinct !DIGlobalVariable(name: "foo", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) 55!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None) 56!3 = !DIFile(filename: "foo.c", directory: "/tmp") 57!4 = !{} 58!5 = !{!0} 59!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 60!7 = !{i32 7, !"Dwarf Version", i32 4} 61!8 = !{i32 2, !"Debug Info Version", i32 3} 62!9 = !{i32 1, !"wchar_size", i32 4} 63!10 = !{!"clang version 12.0.0"} 64