| ; |
| ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -O0 -filetype=obj %s -o - | llvm-dwarfdump -v -debug-info - | FileCheck %s |
| |
| ; Test case derived from compiling the following source with clang -g: |
| ; |
| ; namespace pr14763 { |
| ; struct foo { |
| ; foo(const foo&); |
| ; }; |
| ; |
| ; foo func(foo f) { |
| ; return f; // reference 'f' for now because otherwise we hit another bug |
| ; } |
| ; |
| ; void sink(ptr); |
| ; |
| ; void func2(bool b, foo g) { |
| ; if (b) |
| ; sink(&g); // reference 'f' for now because otherwise we hit another bug |
| ; } |
| ; } |
| |
| ; CHECK: debug_info contents |
| ; The parameter is accessed indirectly (with a zero offset) from the second |
| ; register parameter. RDI is consumed by 'sret'. |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK: DW_AT_name{{.*}} = "func" |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK: DW_AT_location {{.*}} |
| ; CHECK-NEXT: DW_OP_breg4 RSI+0, DW_OP_deref |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name{{.*}} = "f" |
| |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK: DW_AT_name{{.*}} = "func2" |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK: DW_AT_location{{.*}}(DW_OP_fbreg +23) |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK: DW_AT_location{{.*}}( |
| ; CHECK-NEXT: {{.*}}: DW_OP_breg7 RSP+8, DW_OP_deref, DW_OP_deref |
| ; CHECK-NEXT: {{.*}}: DW_OP_breg4 RSI+0, DW_OP_deref |
| ; CHECK-NEXT: {{.*}}: DW_OP_breg7 RSP+8, DW_OP_deref, DW_OP_deref) |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name{{.*}} = "g" |
| |
| %"struct.pr14763::foo" = type { i8 } |
| |
| ; Function Attrs: uwtable |
| define void @_ZN7pr147634funcENS_3fooE(ptr noalias sret(%"struct.pr14763::foo") %agg.result, ptr %f) #0 !dbg !4 { |
| entry: |
| call void @llvm.dbg.declare(metadata ptr %f, metadata !22, metadata !DIExpression(DW_OP_deref)), !dbg !24 |
| call void @_ZN7pr147633fooC1ERKS0_(ptr %agg.result, ptr %f), !dbg !25 |
| ret void, !dbg !25 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| declare void @_ZN7pr147633fooC1ERKS0_(ptr, ptr) #2 |
| |
| ; Function Attrs: uwtable |
| define void @_ZN7pr147635func2EbNS_3fooE(i1 zeroext %b, ptr %g) #0 !dbg !17 { |
| entry: |
| %b.addr = alloca i8, align 1 |
| %frombool = zext i1 %b to i8 |
| store i8 %frombool, ptr %b.addr, align 1 |
| call void @llvm.dbg.declare(metadata ptr %b.addr, metadata !26, metadata !DIExpression()), !dbg !27 |
| call void @llvm.dbg.declare(metadata ptr %g, metadata !28, metadata !DIExpression(DW_OP_deref)), !dbg !27 |
| %0 = load i8, ptr %b.addr, align 1, !dbg !29 |
| %tobool = trunc i8 %0 to i1, !dbg !29 |
| br i1 %tobool, label %if.then, label %if.end, !dbg !29 |
| |
| if.then: ; preds = %entry |
| call void @_ZN7pr147634sinkEPv(ptr %g), !dbg !31 |
| br label %if.end, !dbg !31 |
| |
| if.end: ; preds = %if.then, %entry |
| ret void, !dbg !32 |
| } |
| |
| declare void @_ZN7pr147634sinkEPv(ptr) |
| |
| attributes #0 = { uwtable } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!21, !33} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "pass.cpp", directory: "/tmp") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "func", linkageName: "_ZN7pr147634funcENS_3fooE", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2) |
| !5 = !DINamespace(name: "pr14763", scope: null) |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{!8, !8} |
| !8 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 2, size: 8, align: 8, file: !1, scope: !5, elements: !9) |
| !9 = !{!10} |
| !10 = !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !8, type: !11) |
| !11 = !DISubroutineType(types: !12) |
| !12 = !{null, !13, !14} |
| !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8) |
| !14 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !15) |
| !15 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8) |
| !17 = distinct !DISubprogram(name: "func2", linkageName: "_ZN7pr147635func2EbNS_3fooE", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 12, file: !1, scope: !5, type: !18, retainedNodes: !2) |
| !18 = !DISubroutineType(types: !19) |
| !19 = !{null, !20, !8} |
| !20 = !DIBasicType(tag: DW_TAG_base_type, name: "bool", size: 8, align: 8, encoding: DW_ATE_boolean) |
| !21 = !{i32 2, !"Dwarf Version", i32 3} |
| !22 = !DILocalVariable(name: "f", line: 6, arg: 1, scope: !4, file: !23, type: !8) |
| !23 = !DIFile(filename: "pass.cpp", directory: "/tmp") |
| !24 = !DILocation(line: 6, scope: !4) |
| !25 = !DILocation(line: 7, scope: !4) |
| !26 = !DILocalVariable(name: "b", line: 12, arg: 1, scope: !17, file: !23, type: !20) |
| !27 = !DILocation(line: 12, scope: !17) |
| !28 = !DILocalVariable(name: "g", line: 12, arg: 2, scope: !17, file: !23, type: !8) |
| !29 = !DILocation(line: 13, scope: !30) |
| !30 = distinct !DILexicalBlock(line: 13, column: 0, file: !1, scope: !17) |
| !31 = !DILocation(line: 14, scope: !30) |
| !32 = !DILocation(line: 15, scope: !17) |
| !33 = !{i32 1, !"Debug Info Version", i32 3} |