Index: llvm/trunk/include/llvm/IR/DebugInfoMetadata.h =================================================================== --- llvm/trunk/include/llvm/IR/DebugInfoMetadata.h +++ llvm/trunk/include/llvm/IR/DebugInfoMetadata.h @@ -2510,6 +2510,12 @@ /// return true with an offset of zero. bool extractIfOffset(int64_t &Offset) const; + /// Checks if the last 4 elements of the expression are DW_OP_constu DW_OP_swap DW_OP_xderef and extracts the . + static const DIExpression *extractAddressClass(const DIExpression *Expr, + unsigned &AddrClass); + /// Constants for DIExpression::prepend. enum { NoDeref = false, WithDeref = true, WithStackValue = true }; Index: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp =================================================================== --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp @@ -167,6 +167,7 @@ // Add location. bool addToAccelTable = false; DIELoc *Loc = nullptr; + Optional NVPTXAddressSpace; std::unique_ptr DwarfExpr; for (const auto &GE : GlobalExprs) { const GlobalVariable *Global = GE.Var; @@ -200,8 +201,24 @@ DwarfExpr = llvm::make_unique(*Asm, *this, *Loc); } - if (Expr) + if (Expr) { + // According to + // https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf + // cuda-gdb requires DW_AT_address_class for all variables to be able to + // correctly interpret address space of the variable address. + // Decode DW_OP_constu DW_OP_swap DW_OP_xderef + // sequence for the NVPTX + gdb target. + unsigned LocalNVPTXAddressSpace; + if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) { + const DIExpression *NewExpr = + DIExpression::extractAddressClass(Expr, LocalNVPTXAddressSpace); + if (NewExpr != Expr) { + Expr = NewExpr; + NVPTXAddressSpace = LocalNVPTXAddressSpace; + } + } DwarfExpr->addFragmentOffset(Expr); + } if (Global) { const MCSymbol *Sym = Asm->getSymbol(Global); @@ -246,6 +263,15 @@ DwarfExpr->setMemoryLocationKind(); DwarfExpr->addExpression(Expr); } + if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) { + // According to + // https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf + // cuda-gdb requires DW_AT_address_class for all variables to be able to + // correctly interpret address space of the variable address. + const unsigned NVPTX_ADDR_global_space = 5; + addUInt(*VariableDIE, dwarf::DW_AT_address_class, dwarf::DW_FORM_data1, + NVPTXAddressSpace ? *NVPTXAddressSpace : NVPTX_ADDR_global_space); + } if (Loc) addBlock(*VariableDIE, dwarf::DW_AT_location, DwarfExpr->finalize()); @@ -591,6 +617,7 @@ if (!DV.hasFrameIndexExprs()) return VariableDie; + Optional NVPTXAddressSpace; DIELoc *Loc = new (DIEValueAllocator) DIELoc; DIEDwarfExpression DwarfExpr(*Asm, *this, *Loc); for (auto &Fragment : DV.getFrameIndexExprs()) { @@ -602,7 +629,23 @@ SmallVector Ops; Ops.push_back(dwarf::DW_OP_plus_uconst); Ops.push_back(Offset); - Ops.append(Expr->elements_begin(), Expr->elements_end()); + // According to + // https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf + // cuda-gdb requires DW_AT_address_class for all variables to be able to + // correctly interpret address space of the variable address. + // Decode DW_OP_constu DW_OP_swap DW_OP_xderef + // sequence for the NVPTX + gdb target. + unsigned LocalNVPTXAddressSpace; + if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) { + const DIExpression *NewExpr = + DIExpression::extractAddressClass(Expr, LocalNVPTXAddressSpace); + if (NewExpr != Expr) { + Expr = NewExpr; + NVPTXAddressSpace = LocalNVPTXAddressSpace; + } + } + if (Expr) + Ops.append(Expr->elements_begin(), Expr->elements_end()); DIExpressionCursor Cursor(Ops); DwarfExpr.setMemoryLocationKind(); if (const MCSymbol *FrameSymbol = Asm->getFunctionFrameSymbol()) @@ -612,6 +655,15 @@ *Asm->MF->getSubtarget().getRegisterInfo(), Cursor, FrameReg); DwarfExpr.addExpression(std::move(Cursor)); } + if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) { + // According to + // https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf + // cuda-gdb requires DW_AT_address_class for all variables to be able to + // correctly interpret address space of the variable address. + const unsigned NVPTX_ADDR_local_space = 6; + addUInt(*VariableDie, dwarf::DW_AT_address_class, dwarf::DW_FORM_data1, + NVPTXAddressSpace ? *NVPTXAddressSpace : NVPTX_ADDR_local_space); + } addBlock(*VariableDie, dwarf::DW_AT_location, DwarfExpr.finalize()); return VariableDie; Index: llvm/trunk/lib/IR/DebugInfoMetadata.cpp =================================================================== --- llvm/trunk/lib/IR/DebugInfoMetadata.cpp +++ llvm/trunk/lib/IR/DebugInfoMetadata.cpp @@ -928,6 +928,24 @@ return false; } +const DIExpression *DIExpression::extractAddressClass(const DIExpression *Expr, + unsigned &AddrClass) { + const unsigned PatternSize = 4; + if (Expr->Elements.size() >= PatternSize && + Expr->Elements[PatternSize - 4] == dwarf::DW_OP_constu && + Expr->Elements[PatternSize - 2] == dwarf::DW_OP_swap && + Expr->Elements[PatternSize - 1] == dwarf::DW_OP_xderef) { + AddrClass = Expr->Elements[PatternSize - 3]; + + if (Expr->Elements.size() == PatternSize) + return nullptr; + return DIExpression::get(Expr->getContext(), + makeArrayRef(&*Expr->Elements.begin(), + Expr->Elements.size() - PatternSize)); + } + return Expr; +} + DIExpression *DIExpression::prepend(const DIExpression *Expr, bool DerefBefore, int64_t Offset, bool DerefAfter, bool StackValue) { Index: llvm/trunk/test/DebugInfo/NVPTX/dbg-declare-alloca.ll =================================================================== --- llvm/trunk/test/DebugInfo/NVPTX/dbg-declare-alloca.ll +++ llvm/trunk/test/DebugInfo/NVPTX/dbg-declare-alloca.ll @@ -68,6 +68,8 @@ ; CHECK-NEXT: .b8 3 // Abbreviation Code ; CHECK-NEXT: .b8 52 // DW_TAG_variable ; CHECK-NEXT: .b8 0 // DW_CHILDREN_no +; CHECK-NEXT: .b8 51 // DW_AT_address_class +; CHECK-NEXT: .b8 11 // DW_FORM_data1 ; CHECK-NEXT: .b8 2 // DW_AT_location ; CHECK-NEXT: .b8 10 // DW_FORM_block1 ; CHECK-NEXT: .b8 3 // DW_AT_name @@ -123,12 +125,12 @@ ; CHECK-NEXT: } ; CHECK-NEXT: .section .debug_info ; CHECK-NEXT: { -; CHECK-NEXT: .b32 135 // Length of Unit +; CHECK-NEXT: .b32 136 // Length of Unit ; CHECK-NEXT: .b8 2 // DWARF version number ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b32 .debug_abbrev // Offset Into Abbrev. Section ; CHECK-NEXT: .b8 8 // Address Size (in bytes) -; CHECK-NEXT: .b8 1 // Abbrev [1] 0xb:0x80 DW_TAG_compile_unit +; CHECK-NEXT: .b8 1 // Abbrev [1] 0xb:0x81 DW_TAG_compile_unit ; CHECK-NEXT: .b8 99,108,97,110,103 // DW_AT_producer ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b8 12 // DW_AT_language @@ -140,7 +142,7 @@ ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc ; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc -; CHECK-NEXT: .b8 2 // Abbrev [2] 0x31:0x3d DW_TAG_subprogram +; CHECK-NEXT: .b8 2 // Abbrev [2] 0x31:0x3e DW_TAG_subprogram ; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc ; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc ; CHECK-NEXT: .b8 1 // DW_AT_frame_base @@ -151,7 +153,8 @@ ; CHECK-NEXT: .b8 3 // DW_AT_decl_line ; CHECK-NEXT: .b8 1 // DW_AT_prototyped ; CHECK-NEXT: .b8 1 // DW_AT_external -; CHECK-NEXT: .b8 3 // Abbrev [3] 0x58:0x15 DW_TAG_variable +; CHECK-NEXT: .b8 3 // Abbrev [3] 0x58:0x16 DW_TAG_variable +; CHECK-NEXT: .b8 6 // DW_AT_address_class ; CHECK-NEXT: .b8 11 // DW_AT_location ; CHECK-NEXT: .b8 3 ; CHECK-NEXT: .b64 __local_depot0 @@ -161,25 +164,25 @@ ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b8 1 // DW_AT_decl_file ; CHECK-NEXT: .b8 4 // DW_AT_decl_line -; CHECK-NEXT: .b32 110 // DW_AT_type +; CHECK-NEXT: .b32 111 // DW_AT_type ; CHECK-NEXT: .b8 0 // End Of Children Mark -; CHECK-NEXT: .b8 4 // Abbrev [4] 0x6e:0x15 DW_TAG_structure_type +; CHECK-NEXT: .b8 4 // Abbrev [4] 0x6f:0x15 DW_TAG_structure_type ; CHECK-NEXT: .b8 70,111,111 // DW_AT_name ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b8 4 // DW_AT_byte_size ; CHECK-NEXT: .b8 1 // DW_AT_decl_file ; CHECK-NEXT: .b8 1 // DW_AT_decl_line -; CHECK-NEXT: .b8 5 // Abbrev [5] 0x76:0xc DW_TAG_member +; CHECK-NEXT: .b8 5 // Abbrev [5] 0x77:0xc DW_TAG_member ; CHECK-NEXT: .b8 120 // DW_AT_name ; CHECK-NEXT: .b8 0 -; CHECK-NEXT: .b32 131 // DW_AT_type +; CHECK-NEXT: .b32 132 // DW_AT_type ; CHECK-NEXT: .b8 1 // DW_AT_decl_file ; CHECK-NEXT: .b8 1 // DW_AT_decl_line ; CHECK-NEXT: .b8 2 // DW_AT_data_member_location ; CHECK-NEXT: .b8 35 ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b8 0 // End Of Children Mark -; CHECK-NEXT: .b8 6 // Abbrev [6] 0x83:0x7 DW_TAG_base_type +; CHECK-NEXT: .b8 6 // Abbrev [6] 0x84:0x7 DW_TAG_base_type ; CHECK-NEXT: .b8 105,110,116 // DW_AT_name ; CHECK-NEXT: .b8 0 ; CHECK-NEXT: .b8 5 // DW_AT_encoding Index: llvm/trunk/test/DebugInfo/NVPTX/debug-addr-class.ll =================================================================== --- llvm/trunk/test/DebugInfo/NVPTX/debug-addr-class.ll +++ llvm/trunk/test/DebugInfo/NVPTX/debug-addr-class.ll @@ -0,0 +1,255 @@ +; RUN: llc -mtriple=nvptx64-nvidia-cuda < %s | FileCheck %s + +@GLOBAL = addrspace(1) externally_initialized global i32 0, align 4, !dbg !0 +@SHARED = addrspace(3) externally_initialized global i32 undef, align 4, !dbg !6 + +define void @test(float, float*, float*, i32) !dbg !17 { + %5 = alloca float, align 4 + %6 = alloca float*, align 8 + %7 = alloca float*, align 8 + %8 = alloca i32, align 4 + store float %0, float* %5, align 4 + call void @llvm.dbg.declare(metadata float* %5, metadata !22, metadata !DIExpression()), !dbg !23 + store float* %1, float** %6, align 8 + call void @llvm.dbg.declare(metadata float** %6, metadata !24, metadata !DIExpression()), !dbg !25 + store float* %2, float** %7, align 8 + call void @llvm.dbg.declare(metadata float** %7, metadata !26, metadata !DIExpression()), !dbg !27 + store i32 %3, i32* %8, align 4 + call void @llvm.dbg.declare(metadata i32* %8, metadata !28, metadata !DIExpression()), !dbg !29 + %9 = load float, float* %5, align 4, !dbg !30 + %10 = load float*, float** %6, align 8, !dbg !31 + %11 = load i32, i32* %8, align 4, !dbg !32 + %12 = sext i32 %11 to i64, !dbg !31 + %13 = getelementptr inbounds float, float* %10, i64 %12, !dbg !31 + %14 = load float, float* %13, align 4, !dbg !31 + %15 = fmul contract float %9, %14, !dbg !33 + %16 = load float*, float** %7, align 8, !dbg !34 + %17 = load i32, i32* %8, align 4, !dbg !35 + %18 = sext i32 %17 to i64, !dbg !34 + %19 = getelementptr inbounds float, float* %16, i64 %18, !dbg !34 + store float %15, float* %19, align 4, !dbg !36 + store i32 0, i32* addrspacecast (i32 addrspace(1)* @GLOBAL to i32*), align 4, !dbg !37 + store i32 0, i32* addrspacecast (i32 addrspace(3)* @SHARED to i32*), align 4, !dbg !38 + ret void, !dbg !39 +} + +; Function Attrs: nounwind readnone speculatable +declare void @llvm.dbg.declare(metadata, metadata, metadata) + +!llvm.dbg.cu = !{!2} +!nvvm.annotations = !{!10} +!llvm.module.flags = !{!11, !12, !13, !14, !15} +!llvm.ident = !{!16} + +!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) +!1 = distinct !DIGlobalVariable(name: "GLOBAL", scope: !2, file: !8, line: 3, type: !9, isLocal: false, isDefinition: true) +!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 9.0.0 (trunk 351969) (llvm/trunk 351973)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None) +!3 = !DIFile(filename: "new.cc", directory: "/tmp") +!4 = !{} +!5 = !{!0, !6} +!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression(DW_OP_constu, 8, DW_OP_swap, DW_OP_xderef)) +!7 = distinct !DIGlobalVariable(name: "SHARED", scope: !2, file: !8, line: 4, type: !9, isLocal: false, isDefinition: true) +!8 = !DIFile(filename: "test.cu", directory: "/tmp") +!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!10 = !{void (float, float*, float*, i32)* @test, !"kernel", i32 1} +!11 = !{i32 2, !"Dwarf Version", i32 2} +!12 = !{i32 2, !"Debug Info Version", i32 3} +!13 = !{i32 1, !"wchar_size", i32 4} +!14 = !{i32 4, !"nvvm-reflect-ftz", i32 0} +!15 = !{i32 7, !"PIC Level", i32 2} +!16 = !{!"clang version 9.0.0 (trunk 351969) (llvm/trunk 351973)"} +!17 = distinct !DISubprogram(name: "test", linkageName: "test", scope: !8, file: !8, line: 6, type: !18, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4) +!18 = !DISubroutineType(types: !19) +!19 = !{null, !20, !21, !21, !9} +!20 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) +!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64) +!22 = !DILocalVariable(name: "a", arg: 1, scope: !17, file: !8, line: 6, type: !20) +!23 = !DILocation(line: 6, column: 41, scope: !17) +!24 = !DILocalVariable(name: "x", arg: 2, scope: !17, file: !8, line: 6, type: !21) +!25 = !DILocation(line: 6, column: 51, scope: !17) +!26 = !DILocalVariable(name: "y", arg: 3, scope: !17, file: !8, line: 6, type: !21) +!27 = !DILocation(line: 6, column: 61, scope: !17) +!28 = !DILocalVariable(name: "i", arg: 4, scope: !17, file: !8, line: 6, type: !9) +!29 = !DILocation(line: 6, column: 68, scope: !17) +!30 = !DILocation(line: 7, column: 10, scope: !17) +!31 = !DILocation(line: 7, column: 14, scope: !17) +!32 = !DILocation(line: 7, column: 16, scope: !17) +!33 = !DILocation(line: 7, column: 12, scope: !17) +!34 = !DILocation(line: 7, column: 3, scope: !17) +!35 = !DILocation(line: 7, column: 5, scope: !17) +!36 = !DILocation(line: 7, column: 8, scope: !17) +!37 = !DILocation(line: 8, column: 10, scope: !17) +!38 = !DILocation(line: 9, column: 10, scope: !17) +!39 = !DILocation(line: 10, column: 1, scope: !17) + +; CHECK: .section .debug_abbrev +; CHECK-NEXT: { +; CHECK-NEXT: .b8 1 // Abbreviation Code +; CHECK-NEXT: .b8 17 // DW_TAG_compile_unit +; CHECK-NEXT: .b8 1 // DW_CHILDREN_yes +; CHECK-NEXT: .b8 37 // DW_AT_producer +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 19 // DW_AT_language +; CHECK-NEXT: .b8 5 // DW_FORM_data2 +; CHECK-NEXT: .b8 3 // DW_AT_name +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 16 // DW_AT_stmt_list +; CHECK-NEXT: .b8 6 // DW_FORM_data4 +; CHECK-NEXT: .b8 27 // DW_AT_comp_dir +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 17 // DW_AT_low_pc +; CHECK-NEXT: .b8 1 // DW_FORM_addr +; CHECK-NEXT: .b8 18 // DW_AT_high_pc +; CHECK-NEXT: .b8 1 // DW_FORM_addr +; CHECK-NEXT: .b8 0 // EOM(1) +; CHECK-NEXT: .b8 0 // EOM(2) +; CHECK-NEXT: .b8 2 // Abbreviation Code +; CHECK-NEXT: .b8 52 // DW_TAG_variable +; CHECK-NEXT: .b8 0 // DW_CHILDREN_no +; CHECK-NEXT: .b8 3 // DW_AT_name +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 73 // DW_AT_type +; CHECK-NEXT: .b8 19 // DW_FORM_ref4 +; CHECK-NEXT: .b8 63 // DW_AT_external +; CHECK-NEXT: .b8 12 // DW_FORM_flag +; CHECK-NEXT: .b8 58 // DW_AT_decl_file +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 59 // DW_AT_decl_line +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 51 // DW_AT_address_class +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 2 // DW_AT_location +; CHECK-NEXT: .b8 10 // DW_FORM_block1 +; CHECK-NEXT: .b8 0 // EOM(1) +; CHECK-NEXT: .b8 0 // EOM(2) +; CHECK-NEXT: .b8 3 // Abbreviation Code +; CHECK-NEXT: .b8 36 // DW_TAG_base_type +; CHECK-NEXT: .b8 0 // DW_CHILDREN_no +; CHECK-NEXT: .b8 3 // DW_AT_name +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 62 // DW_AT_encoding +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 11 // DW_AT_byte_size +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 0 // EOM(1) +; CHECK-NEXT: .b8 0 // EOM(2) +; CHECK-NEXT: .b8 4 // Abbreviation Code +; CHECK-NEXT: .b8 46 // DW_TAG_subprogram +; CHECK-NEXT: .b8 1 // DW_CHILDREN_yes +; CHECK-NEXT: .b8 17 // DW_AT_low_pc +; CHECK-NEXT: .b8 1 // DW_FORM_addr +; CHECK-NEXT: .b8 18 // DW_AT_high_pc +; CHECK-NEXT: .b8 1 // DW_FORM_addr +; CHECK-NEXT: .b8 64 // DW_AT_frame_base +; CHECK-NEXT: .b8 10 // DW_FORM_block1 +; CHECK-NEXT: .b8 135,64 // DW_AT_MIPS_linkage_name +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 3 // DW_AT_name +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 58 // DW_AT_decl_file +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 59 // DW_AT_decl_line +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 63 // DW_AT_external +; CHECK-NEXT: .b8 12 // DW_FORM_flag +; CHECK-NEXT: .b8 0 // EOM(1) +; CHECK-NEXT: .b8 0 // EOM(2) +; CHECK-NEXT: .b8 5 // Abbreviation Code +; CHECK-NEXT: .b8 5 // DW_TAG_formal_parameter +; CHECK-NEXT: .b8 0 // DW_CHILDREN_no +; CHECK-NEXT: .b8 3 // DW_AT_name +; CHECK-NEXT: .b8 8 // DW_FORM_string +; CHECK-NEXT: .b8 58 // DW_AT_decl_file +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 59 // DW_AT_decl_line +; CHECK-NEXT: .b8 11 // DW_FORM_data1 +; CHECK-NEXT: .b8 73 // DW_AT_type +; CHECK-NEXT: .b8 19 // DW_FORM_ref4 +; CHECK-NEXT: .b8 0 // EOM(1) +; CHECK-NEXT: .b8 0 // EOM(2) +; CHECK-NEXT: .b8 0 // EOM(3) +; CHECK-NEXT: } +; CHECK-NEXT: .section .debug_info +; CHECK-NEXT: { +; CHECK-NEXT: .b32 217 // Length of Unit +; CHECK-NEXT: .b8 2 // DWARF version number +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b32 .debug_abbrev // Offset Into Abbrev. Section +; CHECK-NEXT: .b8 8 // Address Size (in bytes) +; CHECK-NEXT: .b8 1 // Abbrev [1] 0xb:0xd2 DW_TAG_compile_unit +; CHECK-NEXT: .b8 99,108,97,110,103,32,118,101,114,115,105,111,110,32,57,46,48,46,48,32,40,116,114,117,110,107,32,51,53,49,57,54,57,41,32,40,108,108,118,109 // DW_AT_producer +; CHECK-NEXT: .b8 47,116,114,117,110,107,32,51,53,49,57,55,51,41 +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 4 // DW_AT_language +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 110,101,119,46,99,99 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b32 .debug_line // DW_AT_stmt_list +; CHECK-NEXT: .b8 47,116,109,112 // DW_AT_comp_dir +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc +; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc +; CHECK-NEXT: .b8 2 // Abbrev [2] 0x65:0x1a DW_TAG_variable +; CHECK-NEXT: .b8 71,76,79,66,65,76 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b32 127 // DW_AT_type +; CHECK-NEXT: .b8 1 // DW_AT_external +; CHECK-NEXT: .b8 1 // DW_AT_decl_file +; CHECK-NEXT: .b8 3 // DW_AT_decl_line +; CHECK-NEXT: .b8 5 // DW_AT_address_class +; CHECK-NEXT: .b8 9 // DW_AT_location +; CHECK-NEXT: .b8 3 +; CHECK-NEXT: .b64 GLOBAL +; CHECK-NEXT: .b8 3 // Abbrev [3] 0x7f:0x7 DW_TAG_base_type +; CHECK-NEXT: .b8 105,110,116 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 5 // DW_AT_encoding +; CHECK-NEXT: .b8 4 // DW_AT_byte_size +; CHECK-NEXT: .b8 2 // Abbrev [2] 0x86:0x1a DW_TAG_variable +; CHECK-NEXT: .b8 83,72,65,82,69,68 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b32 127 // DW_AT_type +; CHECK-NEXT: .b8 1 // DW_AT_external +; CHECK-NEXT: .b8 1 // DW_AT_decl_file +; CHECK-NEXT: .b8 4 // DW_AT_decl_line +; CHECK-NEXT: .b8 8 // DW_AT_address_class +; CHECK-NEXT: .b8 9 // DW_AT_location +; CHECK-NEXT: .b8 3 +; CHECK-NEXT: .b64 SHARED +; CHECK-NEXT: .b8 4 // Abbrev [4] 0xa0:0x33 DW_TAG_subprogram +; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc +; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc +; CHECK-NEXT: .b8 1 // DW_AT_frame_base +; CHECK-NEXT: .b8 156 +; CHECK-NEXT: .b8 116,101,115,116 // DW_AT_MIPS_linkage_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 116,101,115,116 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 1 // DW_AT_decl_file +; CHECK-NEXT: .b8 6 // DW_AT_decl_line +; CHECK-NEXT: .b8 1 // DW_AT_external +; CHECK-NEXT: .b8 5 // Abbrev [5] 0xc0:0x9 DW_TAG_formal_parameter +; CHECK-NEXT: .b8 97 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 1 // DW_AT_decl_file +; CHECK-NEXT: .b8 6 // DW_AT_decl_line +; CHECK-NEXT: .b32 211 // DW_AT_type +; CHECK-NEXT: .b8 5 // Abbrev [5] 0xc9:0x9 DW_TAG_formal_parameter +; CHECK-NEXT: .b8 105 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 1 // DW_AT_decl_file +; CHECK-NEXT: .b8 6 // DW_AT_decl_line +; CHECK-NEXT: .b32 127 // DW_AT_type +; CHECK-NEXT: .b8 0 // End Of Children Mark +; CHECK-NEXT: .b8 3 // Abbrev [3] 0xd3:0x9 DW_TAG_base_type +; CHECK-NEXT: .b8 102,108,111,97,116 // DW_AT_name +; CHECK-NEXT: .b8 0 +; CHECK-NEXT: .b8 4 // DW_AT_encoding +; CHECK-NEXT: .b8 4 // DW_AT_byte_size +; CHECK-NEXT: .b8 0 // End Of Children Mark +; CHECK-NEXT: } +; CHECK-NEXT: .section .debug_macinfo +; CHECK-NEXT: { +; CHECK-NEXT: .b8 0 // End Of Macro List Mark +; CHECK: } +