1; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -filetype=obj -o %t 2; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s 3 4; RUN: llc --try-experimental-debuginfo-iterators %s -mtriple=x86_64-pc-linux-gnu -O0 -filetype=obj -o %t 5; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s 6 7; If stack is realigned, we shouldn't describe locations of local 8; variables by giving offset from the frame pointer (%rbp): 9; push %rpb 10; mov %rsp,%rbp 11; and ALIGNMENT,%rsp ; (%rsp and %rbp are different now) 12; It's better to use offset from %rsp instead. 13 14; DW_AT_location of variable "x" shouldn't be equal to 15; (DW_OP_fbreg: .*): DW_OP_fbreg has code 0x91 16 17; CHECK: {{0x.* DW_TAG_variable}} 18; CHECK-NOT: {{DW_AT_location.*DW_FORM_block1.*0x.*91}} 19; CHECK: NULL 20 21define void @_Z3runv() nounwind uwtable !dbg !5 { 22entry: 23 %x = alloca i32, align 32 24 call void @llvm.dbg.declare(metadata ptr %x, metadata !9, metadata !DIExpression()), !dbg !12 25 ret void, !dbg !13 26} 27 28declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone 29 30!llvm.dbg.cu = !{!0} 31!llvm.module.flags = !{!15} 32 33!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.2 (trunk 155696:155697) (llvm/trunk 155696)", isOptimized: false, emissionKind: FullDebug, file: !14, enums: !1, retainedTypes: !1, globals: !1, imports: !1) 34!1 = !{} 35!5 = distinct !DISubprogram(name: "run", linkageName: "_Z3runv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !14, scope: !6, type: !7, retainedNodes: !1) 36!6 = !DIFile(filename: "test.cc", directory: "/home/samsonov/debuginfo") 37!7 = !DISubroutineType(types: !8) 38!8 = !{null} 39!9 = !DILocalVariable(name: "x", line: 2, scope: !10, file: !6, type: !11) 40!10 = distinct !DILexicalBlock(line: 1, column: 12, file: !14, scope: !5) 41!11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 42!12 = !DILocation(line: 2, column: 7, scope: !10) 43!13 = !DILocation(line: 3, column: 1, scope: !10) 44!14 = !DIFile(filename: "test.cc", directory: "/home/samsonov/debuginfo") 45!15 = !{i32 1, !"Debug Info Version", i32 3} 46