| ; RUN: llc < %s -O0 -mtriple x86_64-apple-darwin | FileCheck %s |
| ; RUN: llc < %s -O0 -mtriple x86_64-apple-darwin -filetype=obj \ |
| ; RUN: | llvm-dwarfdump -v - --debug-info | FileCheck %s --check-prefix=DWARF |
| ; <rdar://problem/11134152> |
| |
| ; CHECK-LABEL: _foo: |
| ; CHECK-NOT: #DEBUG_VALUE |
| |
| ; "[DW_FORM_exprloc] <0x2> 91 XX" means fbreg uleb(XX) |
| ; DWARF-LABEL: DW_TAG_formal_parameter |
| ; DWARF-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg -16) |
| ; DWARF-NEXT: DW_AT_name [DW_FORM_strp] ( {{.*}} = "x") |
| |
| ; FIXME: There is no debug info to describe "a". |
| |
| define i32 @foo(ptr %x) nounwind uwtable ssp !dbg !5 { |
| entry: |
| %x.addr = alloca ptr, align 8 |
| %saved_stack = alloca ptr |
| %cleanup.dest.slot = alloca i32 |
| store ptr %x, ptr %x.addr, align 8 |
| call void @llvm.dbg.declare(metadata ptr %x.addr, metadata !14, metadata !DIExpression()), !dbg !15 |
| %0 = load ptr, ptr %x.addr, align 8, !dbg !16 |
| %1 = load i32, ptr %0, align 4, !dbg !16 |
| %2 = zext i32 %1 to i64, !dbg !16 |
| %3 = call ptr @llvm.stacksave(), !dbg !16 |
| store ptr %3, ptr %saved_stack, !dbg !16 |
| %vla = alloca i8, i64 %2, align 16, !dbg !16 |
| call void @llvm.dbg.declare(metadata ptr %vla, metadata !18, metadata !DIExpression()), !dbg !23 |
| store i32 1, ptr %cleanup.dest.slot |
| %4 = load ptr, ptr %saved_stack, !dbg !24 |
| call void @llvm.stackrestore(ptr %4), !dbg !24 |
| ret i32 0, !dbg !25 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone |
| |
| declare ptr @llvm.stacksave() nounwind |
| |
| declare void @llvm.stackrestore(ptr) nounwind |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!27} |
| |
| !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) |
| !1 = !{} |
| !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) |
| !6 = !DIFile(filename: "20020104-2.c", directory: "/Volumes/Sandbox/llvm") |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{!9, !10} |
| !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11) |
| !11 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !9) |
| !14 = !DILocalVariable(name: "x", line: 5, arg: 1, scope: !5, file: !6, type: !10) |
| !15 = !DILocation(line: 5, column: 21, scope: !5) |
| !16 = !DILocation(line: 7, column: 13, scope: !17) |
| !17 = distinct !DILexicalBlock(line: 6, column: 1, file: !26, scope: !5) |
| !18 = !DILocalVariable(name: "a", line: 7, scope: !17, file: !6, type: !19) |
| !19 = !DICompositeType(tag: DW_TAG_array_type, align: 8, baseType: !20, elements: !21) |
| !20 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) |
| !21 = !{!22} |
| !22 = !DISubrange(count: -1) |
| !23 = !DILocation(line: 7, column: 8, scope: !17) |
| !24 = !DILocation(line: 9, column: 1, scope: !17) |
| !25 = !DILocation(line: 8, column: 3, scope: !17) |
| !26 = !DIFile(filename: "20020104-2.c", directory: "/Volumes/Sandbox/llvm") |
| !27 = !{i32 1, !"Debug Info Version", i32 3} |