1; RUN: llc < %s -O0 -mtriple x86_64-apple-darwin | FileCheck %s 2; RUN: llc < %s -O0 -mtriple x86_64-apple-darwin -filetype=obj \ 3; RUN: | llvm-dwarfdump -v - --debug-info | FileCheck %s --check-prefix=DWARF 4 5; RUN: llc --try-experimental-debuginfo-iterators < %s -O0 -mtriple x86_64-apple-darwin | FileCheck %s 6; RUN: llc --try-experimental-debuginfo-iterators < %s -O0 -mtriple x86_64-apple-darwin -filetype=obj \ 7; RUN: | llvm-dwarfdump -v - --debug-info | FileCheck %s --check-prefix=DWARF 8 9; <rdar://problem/11134152> 10 11; CHECK-LABEL: _foo: 12; CHECK-NOT: #DEBUG_VALUE 13 14; "[DW_FORM_exprloc] <0x2> 91 XX" means fbreg uleb(XX) 15; DWARF-LABEL: DW_TAG_formal_parameter 16; DWARF-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg -16) 17; DWARF-NEXT: DW_AT_name [DW_FORM_strp] ( {{.*}} = "x") 18 19; FIXME: There is no debug info to describe "a". 20 21define i32 @foo(ptr %x) nounwind uwtable ssp !dbg !5 { 22entry: 23 %x.addr = alloca ptr, align 8 24 %saved_stack = alloca ptr 25 %cleanup.dest.slot = alloca i32 26 store ptr %x, ptr %x.addr, align 8 27 call void @llvm.dbg.declare(metadata ptr %x.addr, metadata !14, metadata !DIExpression()), !dbg !15 28 %0 = load ptr, ptr %x.addr, align 8, !dbg !16 29 %1 = load i32, ptr %0, align 4, !dbg !16 30 %2 = zext i32 %1 to i64, !dbg !16 31 %3 = call ptr @llvm.stacksave(), !dbg !16 32 store ptr %3, ptr %saved_stack, !dbg !16 33 %vla = alloca i8, i64 %2, align 16, !dbg !16 34 call void @llvm.dbg.declare(metadata ptr %vla, metadata !18, metadata !DIExpression()), !dbg !23 35 store i32 1, ptr %cleanup.dest.slot 36 %4 = load ptr, ptr %saved_stack, !dbg !24 37 call void @llvm.stackrestore(ptr %4), !dbg !24 38 ret i32 0, !dbg !25 39} 40 41declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone 42 43declare ptr @llvm.stacksave() nounwind 44 45declare void @llvm.stackrestore(ptr) nounwind 46 47!llvm.dbg.cu = !{!0} 48!llvm.module.flags = !{!27} 49 50!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.1 (trunk 153698)", isOptimized: false, emissionKind: FullDebug, file: !26, enums: !1, retainedTypes: !1, globals: !1) 51!1 = !{} 52!5 = distinct !DISubprogram(name: "foo", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, file: !26, scope: !0, type: !7) 53!6 = !DIFile(filename: "20020104-2.c", directory: "/Volumes/Sandbox/llvm") 54!7 = !DISubroutineType(types: !8) 55!8 = !{!9, !10} 56!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 57!10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11) 58!11 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !9) 59!14 = !DILocalVariable(name: "x", line: 5, arg: 1, scope: !5, file: !6, type: !10) 60!15 = !DILocation(line: 5, column: 21, scope: !5) 61!16 = !DILocation(line: 7, column: 13, scope: !17) 62!17 = distinct !DILexicalBlock(line: 6, column: 1, file: !26, scope: !5) 63!18 = !DILocalVariable(name: "a", line: 7, scope: !17, file: !6, type: !19) 64!19 = !DICompositeType(tag: DW_TAG_array_type, align: 8, baseType: !20, elements: !21) 65!20 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 66!21 = !{!22} 67!22 = !DISubrange(count: -1) 68!23 = !DILocation(line: 7, column: 8, scope: !17) 69!24 = !DILocation(line: 9, column: 1, scope: !17) 70!25 = !DILocation(line: 8, column: 3, scope: !17) 71!26 = !DIFile(filename: "20020104-2.c", directory: "/Volumes/Sandbox/llvm") 72!27 = !{i32 1, !"Debug Info Version", i32 3} 73