1 ; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -filetype=obj -o %t 2 ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s 3 4 ; If stack is realigned, we shouldn't describe locations of local 5 ; variables by giving offset from the frame pointer (%rbp): 6 ; push %rpb 7 ; mov %rsp,%rbp 8 ; and ALIGNMENT,%rsp ; (%rsp and %rbp are different now) 9 ; It's better to use offset from %rsp instead. 10 11 ; DW_AT_location of variable "x" shouldn't be equal to 12 ; (DW_OP_fbreg: .*): DW_OP_fbreg has code 0x91 13 14 ; CHECK: {{0x.* DW_TAG_variable}} 15 ; CHECK-NOT: {{DW_AT_location.*DW_FORM_block1.*0x.*91}} 16 ; CHECK: NULL 17 18 define void @_Z3runv() nounwind uwtable !dbg !5 { 19 entry: 20 %x = alloca i32, align 32 21 call void @llvm.dbg.declare(metadata i32* %x, metadata !9, metadata !DIExpression()), !dbg !12 22 ret void, !dbg !13 23 } 24 25 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone 26 27 !llvm.dbg.cu = !{!0} 28 !llvm.module.flags = !{!15} 29 30 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.2 (trunk 155696:155697) (llvm/trunk 155696)", isOptimized: false, emissionKind: 0, file: !14, enums: !1, retainedTypes: !1, subprograms: !3, globals: !1, imports: !1) 31 !1 = !{} 32 !3 = !{!5} 33 !5 = distinct !DISubprogram(name: "run", linkageName: "_Z3runv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !14, scope: !6, type: !7, variables: !1) 34 !6 = !DIFile(filename: "test.cc", directory: "/home/samsonov/debuginfo") 35 !7 = !DISubroutineType(types: !8) 36 !8 = !{null} 37 !9 = !DILocalVariable(name: "x", line: 2, scope: !10, file: !6, type: !11) 38 !10 = distinct !DILexicalBlock(line: 1, column: 12, file: !14, scope: !5) 39 !11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 40 !12 = !DILocation(line: 2, column: 7, scope: !10) 41 !13 = !DILocation(line: 3, column: 1, scope: !10) 42 !14 = !DIFile(filename: "test.cc", directory: "/home/samsonov/debuginfo") 43 !15 = !{i32 1, !"Debug Info Version", i32 3} 44
