| ; RUN: llc %s -filetype=obj -O0 -mtriple=i386-unknown-linux-gnu -dwarf-version=4 -o %t |
| ; RUN: llvm-dwarfdump -v %t | FileCheck %s |
| |
| ; From the code: |
| |
| ; debug-loc-offset1.cc |
| ; int bar (int b) { |
| ; return b+4; |
| ; } |
| |
| ; debug-loc-offset2.cc |
| ; struct A { |
| ; int var; |
| ; virtual char foo(); |
| ; }; |
| |
| ; void baz(struct A a) { |
| ; int z = 2; |
| ; if (a.var > 2) |
| ; z++; |
| ; if (a.foo() == 'a') |
| ; z++; |
| ; } |
| |
| ; Compiled separately for i386-pc-linux-gnu and linked together. |
| ; This ensures that we have multiple compile units and multiple location lists |
| ; so that we can verify that |
| ; debug_loc entries are relative to the low_pc of the CU. The loc entry for |
| ; the byval argument in foo.cpp is in the second CU and so should have |
| ; an offset relative to that CU rather than from the beginning of the text |
| ; section. |
| |
| ; Checking that we have two compile units with two sets of high/lo_pc. |
| ; CHECK: .debug_info contents |
| ; CHECK: DW_TAG_compile_unit |
| ; CHECK: DW_AT_low_pc {{.*}} (0x0000000000000020) |
| ; CHECK: DW_AT_high_pc |
| |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_linkage_name [DW_FORM_strp]{{.*}}"_Z3baz1A" |
| ; CHECK-NOT: {{DW_TAG|NULL}} |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] ({{.*}} |
| ; CHECK-NEXT: [0x00000020, 0x00000037): DW_OP_breg0 EAX+0, DW_OP_deref |
| ; CHECK-NEXT: [0x00000037, 0x00000063): DW_OP_breg5 EBP-8, DW_OP_deref, DW_OP_deref |
| ; CHECK-NEXT: DW_AT_name [DW_FORM_strp]{{.*}}"a" |
| |
| ; CHECK: DW_TAG_variable |
| ; CHECK: DW_AT_location [DW_FORM_exprloc] |
| ; CHECK-NOT: DW_AT_location |
| |
| ; CHECK: DW_TAG_compile_unit |
| ; CHECK: DW_AT_low_pc {{.*}} (0x0000000000000000) |
| ; CHECK: DW_AT_high_pc |
| |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_linkage_name [DW_FORM_strp]{{.*}}"_Z3bari" |
| ; CHECK-NOT: {{DW_TAG|NULL}} |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_location [DW_FORM_sec_offset] ({{.*}} |
| ; CHECK-NEXT: [0x00000000, 0x0000000a): DW_OP_consts +0, DW_OP_stack_value |
| ; CHECK-NEXT: [0x0000000a, 0x00000017): DW_OP_consts +1, DW_OP_stack_value) |
| ; CHECK-NEXT: DW_AT_name [DW_FORM_strp]{{.*}}"b" |
| |
| ; CHECK: .debug_loc contents: |
| ; CHECK: 0x00000000: |
| ; CHECK-NEXT: [0x00000000, 0x0000000a): DW_OP_consts +0, DW_OP_stack_value |
| ; CHECK-NEXT: [0x0000000a, 0x00000017): DW_OP_consts +1, DW_OP_stack_value |
| ; CHECK: 0x00000022: |
| ; CHECK-NEXT: [0x00000000, 0x00000017): DW_OP_breg0 EAX+0, DW_OP_deref |
| ; CHECK-NEXT: [0x00000017, 0x00000043): DW_OP_breg5 EBP-8, DW_OP_deref, DW_OP_deref |
| |
| %struct.A = type { i32 (...)**, i32 } |
| |
| ; Function Attrs: nounwind |
| define i32 @_Z3bari(i32 %b) #0 !dbg !4 { |
| entry: |
| %b.addr = alloca i32, align 4 |
| store i32 %b, i32* %b.addr, align 4 |
| call void @llvm.dbg.value(metadata i32 0, metadata !21, metadata !DIExpression()), !dbg !22 |
| %0 = load i32, i32* %b.addr, align 4, !dbg !23 |
| call void @llvm.dbg.value(metadata i32 1, metadata !21, metadata !DIExpression()), !dbg !22 |
| %add = add nsw i32 %0, 4, !dbg !23 |
| ret i32 %add, !dbg !23 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| define void @_Z3baz1A(%struct.A* %a) #2 !dbg !14 { |
| entry: |
| %z = alloca i32, align 4 |
| call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !24, metadata !DIExpression(DW_OP_deref)), !dbg !25 |
| call void @llvm.dbg.declare(metadata i32* %z, metadata !26, metadata !DIExpression()), !dbg !27 |
| store i32 2, i32* %z, align 4, !dbg !27 |
| %var = getelementptr inbounds %struct.A, %struct.A* %a, i32 0, i32 1, !dbg !28 |
| %0 = load i32, i32* %var, align 4, !dbg !28 |
| %cmp = icmp sgt i32 %0, 2, !dbg !28 |
| br i1 %cmp, label %if.then, label %if.end, !dbg !28 |
| |
| if.then: ; preds = %entry |
| %1 = load i32, i32* %z, align 4, !dbg !30 |
| %inc = add nsw i32 %1, 1, !dbg !30 |
| store i32 %inc, i32* %z, align 4, !dbg !30 |
| br label %if.end, !dbg !30 |
| |
| if.end: ; preds = %if.then, %entry |
| %call = call signext i8 @_ZN1A3fooEv(%struct.A* %a), !dbg !31 |
| %conv = sext i8 %call to i32, !dbg !31 |
| %cmp1 = icmp eq i32 %conv, 97, !dbg !31 |
| br i1 %cmp1, label %if.then2, label %if.end4, !dbg !31 |
| |
| if.then2: ; preds = %if.end |
| %2 = load i32, i32* %z, align 4, !dbg !33 |
| %inc3 = add nsw i32 %2, 1, !dbg !33 |
| store i32 %inc3, i32* %z, align 4, !dbg !33 |
| br label %if.end4, !dbg !33 |
| |
| if.end4: ; preds = %if.then2, %if.end |
| ret void, !dbg !34 |
| } |
| |
| declare signext i8 @_ZN1A3fooEv(%struct.A*) #2 |
| |
| attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone } |
| attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!0, !9} |
| !llvm.module.flags = !{!18, !19} |
| !llvm.ident = !{!20, !20} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (210479)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "debug-loc-offset1.cc", directory: "/llvm_cmake_gcc") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "bar", linkageName: "_Z3bari", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2) |
| !5 = !DIFile(filename: "debug-loc-offset1.cc", directory: "/llvm_cmake_gcc") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{!8, !8} |
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (210479)", isOptimized: false, emissionKind: FullDebug, file: !10, enums: !2, retainedTypes: !11, globals: !2, imports: !2) |
| !10 = !DIFile(filename: "debug-loc-offset2.cc", directory: "/llvm_cmake_gcc") |
| !11 = !{!12} |
| !12 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, flags: DIFlagFwdDecl, file: !10, identifier: "_ZTS1A") |
| !14 = distinct !DISubprogram(name: "baz", linkageName: "_Z3baz1A", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !9, scopeLine: 6, file: !10, scope: !15, type: !16, retainedNodes: !2) |
| !15 = !DIFile(filename: "debug-loc-offset2.cc", directory: "/llvm_cmake_gcc") |
| !16 = !DISubroutineType(types: !17) |
| !17 = !{null, !12} |
| !18 = !{i32 2, !"Dwarf Version", i32 4} |
| !19 = !{i32 2, !"Debug Info Version", i32 3} |
| !20 = !{!"clang version 3.5.0 (210479)"} |
| !21 = !DILocalVariable(name: "b", line: 1, arg: 1, scope: !4, file: !5, type: !8) |
| !22 = !DILocation(line: 1, scope: !4) |
| !23 = !DILocation(line: 2, scope: !4) |
| !24 = !DILocalVariable(name: "a", line: 6, arg: 1, scope: !14, file: !15, type: !12) |
| !25 = !DILocation(line: 6, scope: !14) |
| !26 = !DILocalVariable(name: "z", line: 7, scope: !14, file: !15, type: !8) |
| !27 = !DILocation(line: 7, scope: !14) |
| !28 = !DILocation(line: 8, scope: !29) |
| !29 = distinct !DILexicalBlock(line: 8, column: 0, file: !10, scope: !14) |
| !30 = !DILocation(line: 9, scope: !29) |
| !31 = !DILocation(line: 10, scope: !32) |
| !32 = distinct !DILexicalBlock(line: 10, column: 0, file: !10, scope: !14) |
| !33 = !DILocation(line: 11, scope: !32) |
| !34 = !DILocation(line: 12, scope: !14) |
