| ; Round trip test for DW_OP_LLVM_implicit_pointer metadata |
| |
| ; RUN: llvm-as < %s | llvm-dis | FileCheck %s |
| |
| ;--------------------------- |
| ;static const char *b = "opq"; |
| ;volatile int v; |
| ;int main() { |
| ; int var = 4; |
| ; int *ptr1; |
| ; int **ptr2; |
| ; |
| ; v++; |
| ; ptr1 = &var; |
| ; ptr2 = &ptr1; |
| ; v++; |
| ; |
| ; return *ptr1 - 5 + **ptr2; |
| ;} |
| ;--------------------------- |
| |
| ; ModuleID = 'LLVM_implicit_pointer.c' |
| source_filename = "LLVM_implicit_pointer.c" |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @v = dso_local global i32 0, align 4, !dbg !0 |
| |
| ; Function Attrs: nofree norecurse nounwind uwtable |
| define dso_local i32 @main() local_unnamed_addr !dbg !12 { |
| entry: |
| ; CHECK: call void @llvm.dbg.value(metadata i32 4, metadata [[VAR:![0-9]+]], metadata !DIExpression()) |
| call void @llvm.dbg.value(metadata i32 4, metadata !16, metadata !DIExpression()), !dbg !21 |
| %0 = load volatile i32, ptr @v, align 4, !dbg !22, !tbaa !23 |
| %inc = add nsw i32 %0, 1, !dbg !22 |
| store volatile i32 %inc, ptr @v, align 4, !dbg !22, !tbaa !23 |
| |
| ; CHECK: call void @llvm.dbg.value(metadata i32 4, metadata [[PTR1:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_implicit_pointer)) |
| call void @llvm.dbg.value(metadata i32 4, metadata !17, metadata !DIExpression(DW_OP_LLVM_implicit_pointer)), !dbg !21 |
| |
| ; CHECK: call void @llvm.dbg.value(metadata i32 4, metadata [[PTR2:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_implicit_pointer, DW_OP_LLVM_implicit_pointer)) |
| call void @llvm.dbg.value(metadata i32 4, metadata !19, metadata !DIExpression(DW_OP_LLVM_implicit_pointer, DW_OP_LLVM_implicit_pointer)), !dbg !21 |
| %1 = load volatile i32, ptr @v, align 4, !dbg !27, !tbaa !23 |
| %inc1 = add nsw i32 %1, 1, !dbg !27 |
| store volatile i32 %inc1, ptr @v, align 4, !dbg !27, !tbaa !23 |
| ret i32 3, !dbg !28 |
| } |
| |
| ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "v", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None) |
| !3 = !DIFile(filename: "LLVM_implicit_pointer.c", directory: "/dir", checksumkind: CSK_MD5, checksum: "218aaa8dc9f04b056b56d944d06383dd") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !{i32 7, !"Dwarf Version", i32 5} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{!"clang version 12.0.0"} |
| !12 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 3, type: !13, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !15) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!7} |
| !15 = !{!16, !17, !19} |
| ; CHECK: [[VAR]] = !DILocalVariable(name: "var" |
| !16 = !DILocalVariable(name: "var", scope: !12, file: !3, line: 4, type: !7) |
| ; CHECK: [[PTR1]] = !DILocalVariable(name: "ptr1" |
| !17 = !DILocalVariable(name: "ptr1", scope: !12, file: !3, line: 5, type: !18) |
| !18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) |
| ; CHECK: [[PTR2]] = !DILocalVariable(name: "ptr2" |
| !19 = !DILocalVariable(name: "ptr2", scope: !12, file: !3, line: 6, type: !20) |
| !20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !18, size: 64) |
| !21 = !DILocation(line: 0, scope: !12) |
| !22 = !DILocation(line: 8, column: 4, scope: !12) |
| !23 = !{!24, !24, i64 0} |
| !24 = !{!"int", !25, i64 0} |
| !25 = !{!"omnipotent char", !26, i64 0} |
| !26 = !{!"Simple C/C++ TBAA"} |
| !27 = !DILocation(line: 11, column: 4, scope: !12) |
| !28 = !DILocation(line: 13, column: 3, scope: !12) |