// Add location.
bool addToAccelTable = false;
DIELoc *Loc = nullptr;
+ Optional<unsigned> NVPTXAddressSpace;
std::unique_ptr<DIEDwarfExpression> DwarfExpr;
for (const auto &GE : GlobalExprs) {
const GlobalVariable *Global = GE.Var;
DwarfExpr = llvm::make_unique<DIEDwarfExpression>(*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 <DWARF Address Space> 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);
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());
if (!DV.hasFrameIndexExprs())
return VariableDie;
+ Optional<unsigned> NVPTXAddressSpace;
DIELoc *Loc = new (DIEValueAllocator) DIELoc;
DIEDwarfExpression DwarfExpr(*Asm, *this, *Loc);
for (auto &Fragment : DV.getFrameIndexExprs()) {
SmallVector<uint64_t, 8> 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 <DWARF Address Space> 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())
*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;
--- /dev/null
+; 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: }
+