diff --git a/llvm/include/llvm/CodeGen/Passes.h b/llvm/include/llvm/CodeGen/Passes.h --- a/llvm/include/llvm/CodeGen/Passes.h +++ b/llvm/include/llvm/CodeGen/Passes.h @@ -63,6 +63,11 @@ createMachineFunctionPrinterPass(raw_ostream &OS, const std::string &Banner =""); + /// StackFramePrinter pass - This pass prints out the machine function's + /// stack frame to the given stream as a debugging tool. + MachineFunctionPass * + createStackFramePrinterPass(raw_ostream &OS, const std::string &Banner = ""); + /// MIRPrinting pass - this pass prints out the LLVM IR into the given stream /// using the MIR serialization format. MachineFunctionPass *createPrintMIRPass(raw_ostream &OS); @@ -260,6 +265,10 @@ /// It merges disjoint allocas to reduce the stack size. extern char &StackColoringID; + /// StackFramePrinter - This pass prints the stack frame layout and variable + /// mappings. + extern char &StackFramePrinterPassID; + /// IfConverter - This pass performs machine code if conversion. extern char &IfConverterID; diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h --- a/llvm/include/llvm/InitializePasses.h +++ b/llvm/include/llvm/InitializePasses.h @@ -391,6 +391,7 @@ void initializeSpeculativeExecutionLegacyPassPass(PassRegistry&); void initializeSpillPlacementPass(PassRegistry&); void initializeStackColoringPass(PassRegistry&); +void initializeStackFramePrinterPassPass(PassRegistry &); void initializeStackMapLivenessPass(PassRegistry&); void initializeStackProtectorPass(PassRegistry&); void initializeStackSafetyGlobalInfoWrapperPassPass(PassRegistry &); diff --git a/llvm/lib/CodeGen/CMakeLists.txt b/llvm/lib/CodeGen/CMakeLists.txt --- a/llvm/lib/CodeGen/CMakeLists.txt +++ b/llvm/lib/CodeGen/CMakeLists.txt @@ -207,6 +207,7 @@ SpillPlacement.cpp SplitKit.cpp StackColoring.cpp + StackFramePrinterPass.cpp StackMapLivenessAnalysis.cpp StackMaps.cpp StackProtector.cpp diff --git a/llvm/lib/CodeGen/CodeGen.cpp b/llvm/lib/CodeGen/CodeGen.cpp --- a/llvm/lib/CodeGen/CodeGen.cpp +++ b/llvm/lib/CodeGen/CodeGen.cpp @@ -116,6 +116,7 @@ initializeSjLjEHPreparePass(Registry); initializeSlotIndexesPass(Registry); initializeStackColoringPass(Registry); + initializeStackFramePrinterPassPass(Registry); initializeStackMapLivenessPass(Registry); initializeStackProtectorPass(Registry); initializeStackSlotColoringPass(Registry); diff --git a/llvm/lib/CodeGen/StackFramePrinterPass.cpp b/llvm/lib/CodeGen/StackFramePrinterPass.cpp new file mode 100644 --- /dev/null +++ b/llvm/lib/CodeGen/StackFramePrinterPass.cpp @@ -0,0 +1,205 @@ +//===-- StackFramePrinterPass.cpp ------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// StackFramePrinterPass implementation. Prints a textual representation of +// the stack frame. When possible it prints the values that occupy a stack slot +// using any available debug information. +// +//===----------------------------------------------------------------------===// + +#include "llvm/CodeGen/MachineFrameInfo.h" +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineFunctionPass.h" +#include "llvm/CodeGen/Passes.h" +#include "llvm/CodeGen/SlotIndexes.h" +#include "llvm/CodeGen/TargetFrameLowering.h" +#include "llvm/CodeGen/TargetSubtargetInfo.h" +#include "llvm/IR/DebugInfoMetadata.h" +#include "llvm/IR/PrintPasses.h" +#include "llvm/InitializePasses.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/FormatVariadic.h" +#include "llvm/Support/raw_ostream.h" + +using namespace llvm; + +namespace { + +/// StackFramePrinterPass - This is a pass to dump the stack frame of a +/// MachineFunction. +/// +struct StackFramePrinterPass : public MachineFunctionPass { + using SlotDbgMap = + SmallDenseMap>; + static char ID; + + raw_ostream &OS; + const std::string Banner; + + struct SlotData { + int Slot; + int Size; + int Align; + int Offset; + bool IsSpillSlot; + }; + + StackFramePrinterPass() : MachineFunctionPass(ID), OS(dbgs()) {} + StackFramePrinterPass(raw_ostream &OS, const std::string &Banner) + : MachineFunctionPass(ID), OS(OS), Banner(Banner) {} + + StringRef getPassName() const override { return "StackFrame Printer"; } + + void getAnalysisUsage(AnalysisUsage &AU) const override { + AU.setPreservesAll(); + MachineFunctionPass::getAnalysisUsage(AU); + } + + bool runOnMachineFunction(MachineFunction &MF) override { + if (!isFunctionInPrintList(MF.getName())) + return false; + + OS << "# " << Banner << ": " << MF.getName() << "\n"; + + auto SlotMap = genSlotDbgMapping(MF); + printFrame(MF, OS, SlotMap); + + return false; + } + + std::string genStackOffset(int I) const { + return formatv("[SP{0}{1}]", (I < 0) ? "" : "+", I).str(); + } + + void printBody(raw_ostream &OS, SlotData &D) const { + OS << formatv("{0,-11} {1,-5} {2,-9} {3,-10}\n", genStackOffset(D.Offset), + D.IsSpillSlot ? "Spill" : "", D.Align, D.Size) + .str(); + }; + + void printHeader(raw_ostream &OS) const { + OS << formatv("{0,-11} {1,-5} {2,-9} {3,-10}\n", "Offset", "", "Align", + "Size") + .str(); + }; + + void printSourceLoc(raw_ostream &OS, const llvm::DILocalVariable *N) const { + OS << formatv("{0}{1} @ {2}:{3}\n", " ", N->getName(), N->getFilename(), + N->getLine()); + } + + void printRow(raw_ostream &OS, std::string S) const { + OS << formatv("{0,-75}\n", S); + }; + + void printFrame(const MachineFunction &MF, raw_ostream &OS, + SlotDbgMap &SlotMap) const { + auto &MFI = MF.getFrameInfo(); + if (!MFI.hasStackObjects()) + return; + + const TargetFrameLowering *FI = MF.getSubtarget().getFrameLowering(); + const int ValOffset = (FI ? FI->getOffsetOfLocalArea() : 0); + const auto NumObj = MFI.getNumObjects(); + const auto ObjBeg = MFI.getObjectIndexBegin(); + const auto ObjEnd = MFI.getObjectIndexEnd(); + + std::vector SlotInfo; + SmallDenseMap SlotOffsetMap; + + SlotInfo.reserve(NumObj); + SlotOffsetMap.reserve(NumObj); + // initialize slot info + for (auto Idx = ObjBeg, EndIdx = ObjEnd; Idx != EndIdx; ++Idx) { + SlotData D; + const uint64_t Size = MFI.getObjectSize(Idx); + + // This is a dead slot, so skip it + if (Size == ~0ULL) { + continue; + } + + D.Slot = Idx; + // If Size == 0, then its a variable size object... + D.Size = Size; + D.Align = MFI.getObjectAlign(Idx).value(); + D.IsSpillSlot = MFI.isSpillSlotObjectIndex(Idx); + D.Offset = MFI.getObjectOffset(Idx) - ValOffset; + SlotInfo.push_back(D); + SlotOffsetMap[D.Slot] = D.Offset; + } + + // sort the ordering, to match the actual layout in memory + std::sort(SlotInfo.begin(), SlotInfo.end(), + [](SlotData &A, SlotData &B) { return A.Offset > B.Offset; }); + + printHeader(OS); + + for (auto L : SlotInfo) { + printBody(OS, L); + for (auto *N : SlotMap[L.Slot]) + printSourceLoc(OS, N); + } + OS << "\n"; + } + + // We need to generate a mapping of slots to the values that are stored to + // them. This information is lost by the time we need to print out the frame, + // so we reconstruct it here by walking the CFG, and generating the mapping. + SlotDbgMap genSlotDbgMapping(MachineFunction &MF) { + SlotDbgMap SlotDebugMap; + SmallVector Dbg; + + // add variables to the map + for (auto &DI : MF.getVariableDbgInfo()) { + SlotDebugMap[DI.Slot].insert(DI.Var); + } + + // Then add all the spills that have debug data + for (auto &MBB : MF) { + for (auto &MI : MBB) { + if (MI.getNumMemOperands() == 0) + continue; + for (MachineMemOperand *MO : MI.memoperands()) { + if (!MO->isStore()) + continue; + auto *FI = dyn_cast_or_null( + MO->getPseudoValue()); + if (!FI) + continue; + auto FrameIdx = FI->getFrameIndex(); + Dbg.clear(); + MI.collectDebugValues(Dbg); + + for (auto *MI : Dbg) + SlotDebugMap[FrameIdx].insert(MI->getDebugVariable()); + } + } + } + + return SlotDebugMap; + } +}; + +char StackFramePrinterPass::ID = 0; +} // namespace + +char &llvm::StackFramePrinterPassID = StackFramePrinterPass::ID; +INITIALIZE_PASS(StackFramePrinterPass, "stackframe-printer", + "Stack Frame Printer", false, false) + +namespace llvm { +/// Returns a newly-created MachineFunction Printer pass. The +/// default banner is empty. +/// +MachineFunctionPass *createStackFramePrinterPass(raw_ostream &OS, + const std::string &Banner) { + return new StackFramePrinterPass(OS, Banner); +} + +} // namespace llvm diff --git a/llvm/lib/CodeGen/TargetPassConfig.cpp b/llvm/lib/CodeGen/TargetPassConfig.cpp --- a/llvm/lib/CodeGen/TargetPassConfig.cpp +++ b/llvm/lib/CodeGen/TargetPassConfig.cpp @@ -159,6 +159,9 @@ PrintAfterISel("print-after-isel", cl::init(false), cl::Hidden, cl::desc("Print machine instrs after ISel")); +static cl::opt PrintStackFrame("print-stack-frame", cl::init(false), + cl::Hidden, cl::desc("Print Stack Frame")); + static cl::opt EnableGlobalISelAbort( "global-isel-abort", cl::Hidden, cl::desc("Enable abort calls when \"global\" instruction selection " @@ -1297,6 +1300,9 @@ if (!DisableCFIFixup && TM->Options.EnableCFIFixup) addPass(createCFIFixup()); + if (PrintStackFrame) + PM->add(createStackFramePrinterPass(dbgs(), "Stack Layout")); + // Add passes that directly emit MI after all other MI passes. addPreEmitPass2(); diff --git a/llvm/test/CodeGen/ARM/stack-frame-printer.ll b/llvm/test/CodeGen/ARM/stack-frame-printer.ll new file mode 100644 --- /dev/null +++ b/llvm/test/CodeGen/ARM/stack-frame-printer.ll @@ -0,0 +1,316 @@ +; Test basic output of the -print-stack-frame pass + +; ensure basic output works +; RUN: llc -mtriple=arm-eabi -O1 -print-stack-frame < %s 2>&1 >/dev/null | FileCheck %s + +; check additional slots are displayed when stack is not optimized +; RUN: llc -mtriple=arm-eabi -O0 -print-stack-frame < %s 2>&1 >/dev/null | FileCheck %s --check-prefix=NO_COLORING + +; check more complex cases +; RUN: llc %s -print-stack-frame -o /dev/null --march=arm -mcpu=cortex-m1 2>&1 | FileCheck %s --check-prefix=BOTH --check-prefix=DEBUG + +; check output without debug info +; RUN: opt %s -strip -S | llc -print-stack-frame -o /dev/null --march=arm -mcpu=cortex-m1 2>&1 | FileCheck %s --check-prefix=BOTH --check-prefix=STRIPPED + +target triple = "x86_64-unknown-linux-gnu" + +; CHECK: # Stack Layout: stackSizeWarning +; CHECK: Offset{{.*}}Align{{.*}}Size +; CHECK: [SP-4]{{.*}}Spill{{.*}}4{{.*}}4 +; CHECK: [SP-96]{{.*}}16{{.*}}80 +; CHECK: buffer @ frame-diags.c:30 +; NO_COLORING: [SP-176]{{.*}}16{{.*}}80 +; CHECK: buffer2 @ frame-diags.c:33 + +; BOTH: # Stack Layout: stackSizeWarning +; BOTH: Offset{{.*}}Align{{.*}}Size +; BOTH: [SP-4]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-8]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-12]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-16]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-96]{{.*}}16{{.*}}80 +; DEBUG: buffer @ frame-diags.c:30 +; STRIPPED-NOT: buffer @ frame-diags.c:30 +; BOTH: [SP-176]{{.*}}16{{.*}}80 +; DEBUG: buffer2 @ frame-diags.c:33 +; STRIPPED-NOT: buffer2 @ frame-diags.c:33 +define void @stackSizeWarning() { +entry: + %buffer = alloca [80 x i8], align 16 + %buffer2 = alloca [80 x i8], align 16 + call void @llvm.dbg.declare(metadata ptr %buffer, metadata !25, metadata !DIExpression()), !dbg !39 + call void @llvm.dbg.declare(metadata ptr %buffer2, metadata !31, metadata !DIExpression()), !dbg !40 + ret void +} + +; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn +declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 + +; BOTH: # Stack Layout: cleanup_array +; BOTH: Offset{{.*}}Align{{.*}}Size +; BOTH: [SP-8]{{.+}}8{{.+}}4 +; DEBUG: a @ dot.c:13 +; STRIPPED-NOT: a @ dot.c:13 +define void @cleanup_array(ptr %0) #1 { + %2 = alloca ptr, align 8 + store ptr %0, ptr %2, align 8 + call void @llvm.dbg.declare(metadata ptr %2, metadata !41, metadata !DIExpression()), !dbg !46 + ret void +} + +; BOTH: # Stack Layout: cleanup_result +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP-8]{{.+}}8{{.+}}4 +; DEBUG: res @ dot.c:21 +; STRIPPED-NOT: res @ dot.c:21 +define void @cleanup_result(ptr %0) #1 { + %2 = alloca ptr, align 8 + store ptr %0, ptr %2, align 8 + call void @llvm.dbg.declare(metadata ptr %2, metadata !47, metadata !DIExpression()), !dbg !51 + ret void +} + +; BOTH: # Stack Layout: do_work +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP-4]{{.+}}4{{.+}}4 +; BOTH: [SP-8]{{.+}}8{{.+}}4 +; DEBUG: A @ dot.c:32 +; STRIPPED-NOT: A @ dot.c:32 +; BOTH: [SP-16]{{.+}}8{{.+}}4 +; DEBUG: B @ dot.c:32 +; STRIPPED-NOT: B @ dot.c:32 +; BOTH: [SP-24]{{.+}}8{{.+}}4 +; DEBUG: out @ dot.c:32 +; STRIPPED-NOT: out @ dot.c:32 +; BOTH: [SP-28]{{.+}}4{{.+}}4 +; DEBUG: len @ dot.c:37 +; STRIPPED-NOT: len @ dot.c:37 +; BOTH: [SP-32]{{.+}}8{{.+}}4 +; DEBUG: AB @ dot.c:38 +; STRIPPED-NOT: AB @ dot.c:38 +; BOTH: [SP-36]{{.+}}4{{.+}}4 +; DEBUG: sum @ dot.c:54 +; STRIPPED-NOT: sum @ dot.c:54 +; BOTH: [SP-40]{{.+}}4{{.+}}4 +; DEBUG: i @ dot.c:55 +; STRIPPED-NOT: i @ dot.c:55 +define i32 @do_work(ptr %0, ptr %1, ptr %2) #1 { + %4 = alloca i32, align 4 + %5 = alloca ptr, align 8 + %6 = alloca ptr, align 8 + %7 = alloca ptr, align 8 + %8 = alloca i32, align 4 + %9 = alloca ptr, align 8 + %10 = alloca i32, align 4 + %11 = alloca i32, align 4 + store ptr %0, ptr %5, align 8 + call void @llvm.dbg.declare(metadata ptr %5, metadata !52, metadata !DIExpression()), !dbg !56 + call void @llvm.dbg.declare(metadata ptr %6, metadata !57, metadata !DIExpression()), !dbg !58 + store ptr %2, ptr %7, align 8 + call void @llvm.dbg.declare(metadata ptr %7, metadata !59, metadata !DIExpression()), !dbg !60 + call void @llvm.dbg.declare(metadata ptr %8, metadata !61, metadata !DIExpression()), !dbg !63 + call void @llvm.dbg.declare(metadata ptr %9, metadata !64, metadata !DIExpression()), !dbg !65 + store ptr null, ptr %9, align 8 + store ptr null, ptr null, align 8 + store i32 0, ptr %9, align 8 + %12 = load i32, ptr %8, align 4 + store i32 %12, ptr null, align 8 + call void @llvm.dbg.declare(metadata ptr %10, metadata !66, metadata !DIExpression()), !dbg !67 + call void @llvm.dbg.declare(metadata ptr %11, metadata !68, metadata !DIExpression()), !dbg !70 + store i32 0, ptr %11, align 4 + br label %13 + +13: ; preds = %16, %3 + %14 = load i32, ptr %11, align 4 + %15 = icmp slt i32 %14, 0 + br i1 %15, label %16, label %18 + +16: ; preds = %13 + %17 = load i32, ptr %6, align 4 + store i32 %17, ptr null, align 4 + br label %13 + +18: ; preds = %13 + store i32 0, ptr %4, align 4 + ret i32 0 +} + +; BOTH: # Stack Layout: gen_array +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP-8]{{.+}}8{{.+}}4 +; BOTH: [SP-12]{{.+}}4{{.+}}4 +; DEBUG: size @ dot.c:62 +; STRIPPED-NOT: size @ dot.c:65 +; BOTH: [SP-16]{{.+}}8{{.+}}4 +; DEBUG: res @ dot.c:65 +; STRIPPED-NOT: res @ dot.c:65 +; BOTH: [SP-20]{{.+}}4{{.*}}4 +; DEBUG: i @ dot.c:69 +; STRIPPED-NOT: i @ dot.c:69 +define ptr @gen_array(i32 %0) #1 { + %2 = alloca ptr, align 8 + %3 = alloca i32, align 4 + %4 = alloca ptr, align 8 + %5 = alloca i32, align 4 + store i32 %0, ptr %3, align 4 + call void @llvm.dbg.declare(metadata ptr %3, metadata !71, metadata !DIExpression()), !dbg !75 + call void @llvm.dbg.declare(metadata ptr %4, metadata !76, metadata !DIExpression()), !dbg !77 + store ptr null, ptr %4, align 8 + call void @llvm.dbg.declare(metadata ptr %5, metadata !78, metadata !DIExpression()), !dbg !80 + store i32 0, ptr %5, align 4 + ret ptr null +} + + +; BOTH: # Stack Layout: caller +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP-4]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-8]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-12]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-16]{{.*}}Spill 4{{.*}}4 +; BOTH: [SP-20]{{.*}}4{{.*}}4 +; BOTH: [SP-24]{{.*}}4{{.*}}4 +; DEBUG: size @ dot.c:77 +; STRIPPED-NOT: size @ dot.c:77 +; BOTH: [SP-32]{{.*}}8{{.*}}4 +; DEBUG: A @ dot.c:78 +; STRIPPED-NOT: A @ dot.c:78 +; BOTH: [SP-40]{{.*}}8{{.*}}4 +; DEBUG: B @ dot.c:79 +; STRIPPED-NOT: B @ dot.c:79 +; BOTH: [SP-48]{{.*}}8{{.*}}4 +; DEBUG: res @ dot.c:80 +; STRIPPED-NOT: res @ dot.c:80 +; BOTH: [SP-52]{{.*}}4{{.*}}4 +; DEBUG: ret @ dot.c:81 +; STRIPPED-NOT: ret @ dot.c:81 +; BOTH: [SP-56]{{.*}}4{{.*}}4 +; DEBUG: err @ dot.c:83 +; STRIPPED-NOT: err @ dot.c:83 +define i32 @caller() #1 { + %1 = alloca i32, align 4 + %2 = alloca i32, align 4 + %3 = alloca ptr, align 8 + %4 = alloca ptr, align 8 + %5 = alloca ptr, align 8 + %6 = alloca i32, align 4 + %7 = alloca i32, align 4 + call void @llvm.dbg.declare(metadata ptr %2, metadata !81, metadata !DIExpression()), !dbg !85 + call void @llvm.dbg.declare(metadata ptr %3, metadata !86, metadata !DIExpression()), !dbg !87 + call void @llvm.dbg.declare(metadata ptr %4, metadata !88, metadata !DIExpression()), !dbg !89 + store ptr null, ptr %4, align 8 + call void @llvm.dbg.declare(metadata ptr %5, metadata !90, metadata !DIExpression()), !dbg !91 + call void @llvm.dbg.declare(metadata ptr %6, metadata !92, metadata !DIExpression()), !dbg !93 + call void @llvm.dbg.declare(metadata ptr %7, metadata !94, metadata !DIExpression()), !dbg !95 + %8 = call i32 @do_work(ptr %3, ptr null, ptr null) + store i32 0, ptr %6, align 4 + store i32 0, ptr %1, align 4 + call void @cleanup_result(ptr %5) + ret i32 0 +} + +; uselistorder directives +uselistorder ptr @llvm.dbg.declare, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 18 } + +attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn } +attributes #1 = { "frame-pointer"="all" } + +!llvm.dbg.cu = !{!0, !2} +!llvm.module.flags = !{!18, !19, !20, !21, !22, !23, !24} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Fuchsia clang version 16.0.0 (git@github.com:llvm/llvm-project.git bb51a99e67747be81c9b523fd5ddcc8bf91a1ffb)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) +!1 = !DIFile(filename: "frame-diags.c", directory: "/usr/local/google/home/paulkirth/llvm-sysroot/clang/test/Frontend", checksumkind: CSK_MD5, checksum: "01b5d69ce5387b02de2d1191b28a0b7f") +!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "Fuchsia clang version 16.0.0 (https://llvm.googlesource.com/llvm-project f85c1f3b7c0bda64aef12201e2f5bbad6028582d)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, retainedTypes: !4, splitDebugInlining: false, nameTableKind: None) +!3 = !DIFile(filename: "dot.c", directory: "/usr/local/google/home/paulkirth/test/stack-frame-dump", checksumkind: CSK_MD5, checksum: "bd8ba1fe67914c5427978672a19a51d2") +!4 = !{!5, !6, !10, !13} +!5 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) +!6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) +!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Array", file: !3, line: 3, size: 128, elements: !8) +!8 = !{!9, !12} +!9 = !DIDerivedType(tag: DW_TAG_member, name: "data", scope: !7, file: !3, line: 4, baseType: !10, size: 64) +!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64) +!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!12 = !DIDerivedType(tag: DW_TAG_member, name: "size", scope: !7, file: !3, line: 5, baseType: !11, size: 32, offset: 64) +!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64) +!14 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Result", file: !3, line: 8, size: 128, elements: !15) +!15 = !{!16, !17} +!16 = !DIDerivedType(tag: DW_TAG_member, name: "data", scope: !14, file: !3, line: 9, baseType: !6, size: 64) +!17 = !DIDerivedType(tag: DW_TAG_member, name: "sum", scope: !14, file: !3, line: 10, baseType: !11, size: 32, offset: 64) +!18 = !{i32 7, !"Dwarf Version", i32 5} +!19 = !{i32 2, !"Debug Info Version", i32 3} +!20 = !{i32 1, !"wchar_size", i32 4} +!21 = !{i32 8, !"PIC Level", i32 2} +!22 = !{i32 7, !"PIE Level", i32 2} +!23 = !{i32 7, !"uwtable", i32 2} +!24 = !{i32 7, !"frame-pointer", i32 2} +!25 = !DILocalVariable(name: "buffer", scope: !26, file: !1, line: 30, type: !32) +!26 = distinct !DILexicalBlock(scope: !27, file: !1, line: 29, column: 3) +!27 = distinct !DISubprogram(name: "stackSizeWarning", scope: !1, file: !1, line: 28, type: !28, scopeLine: 28, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !30) +!28 = !DISubroutineType(types: !29) +!29 = !{null} +!30 = !{!25, !31, !36, !37} +!31 = !DILocalVariable(name: "buffer2", scope: !27, file: !1, line: 33, type: !32) +!32 = !DICompositeType(tag: DW_TAG_array_type, baseType: !33, size: 640, elements: !34) +!33 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) +!34 = !{!35} +!35 = !DISubrange(count: 80) +!36 = !DILocalVariable(name: "a", scope: !27, file: !1, line: 34, type: !11) +!37 = !DILocalVariable(name: "b", scope: !27, file: !1, line: 35, type: !38) +!38 = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) +!39 = !DILocation(line: 30, column: 10, scope: !26) +!40 = !DILocation(line: 33, column: 8, scope: !27) +!41 = !DILocalVariable(name: "a", arg: 1, scope: !42, file: !3, line: 13, type: !6) +!42 = distinct !DISubprogram(name: "cleanup_array", scope: !3, file: !3, line: 13, type: !43, scopeLine: 13, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!43 = !DISubroutineType(types: !44) +!44 = !{null, !6} +!45 = !{} +!46 = !DILocation(line: 13, column: 34, scope: !42) +!47 = !DILocalVariable(name: "res", arg: 1, scope: !48, file: !3, line: 21, type: !13) +!48 = distinct !DISubprogram(name: "cleanup_result", scope: !3, file: !3, line: 21, type: !49, scopeLine: 21, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!49 = !DISubroutineType(types: !50) +!50 = !{null, !13} +!51 = !DILocation(line: 21, column: 36, scope: !48) +!52 = !DILocalVariable(name: "A", arg: 1, scope: !53, file: !3, line: 32, type: !6) +!53 = distinct !DISubprogram(name: "do_work", scope: !3, file: !3, line: 32, type: !54, scopeLine: 32, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!54 = !DISubroutineType(types: !55) +!55 = !{!11, !6, !6, !13} +!56 = !DILocation(line: 32, column: 27, scope: !53) +!57 = !DILocalVariable(name: "B", arg: 2, scope: !53, file: !3, line: 32, type: !6) +!58 = !DILocation(line: 32, column: 44, scope: !53) +!59 = !DILocalVariable(name: "out", arg: 3, scope: !53, file: !3, line: 32, type: !13) +!60 = !DILocation(line: 32, column: 62, scope: !53) +!61 = !DILocalVariable(name: "len", scope: !53, file: !3, line: 37, type: !62) +!62 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !11) +!63 = !DILocation(line: 37, column: 13, scope: !53) +!64 = !DILocalVariable(name: "AB", scope: !53, file: !3, line: 38, type: !6) +!65 = !DILocation(line: 38, column: 17, scope: !53) +!66 = !DILocalVariable(name: "sum", scope: !53, file: !3, line: 54, type: !11) +!67 = !DILocation(line: 54, column: 7, scope: !53) +!68 = !DILocalVariable(name: "i", scope: !69, file: !3, line: 55, type: !11) +!69 = distinct !DILexicalBlock(scope: !53, file: !3, line: 55, column: 3) +!70 = !DILocation(line: 55, column: 12, scope: !69) +!71 = !DILocalVariable(name: "size", arg: 1, scope: !72, file: !3, line: 62, type: !11) +!72 = distinct !DISubprogram(name: "gen_array", scope: !3, file: !3, line: 62, type: !73, scopeLine: 62, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!73 = !DISubroutineType(types: !74) +!74 = !{!6, !11} +!75 = !DILocation(line: 62, column: 29, scope: !72) +!76 = !DILocalVariable(name: "res", scope: !72, file: !3, line: 65, type: !6) +!77 = !DILocation(line: 65, column: 17, scope: !72) +!78 = !DILocalVariable(name: "i", scope: !79, file: !3, line: 69, type: !11) +!79 = distinct !DILexicalBlock(scope: !72, file: !3, line: 69, column: 3) +!80 = !DILocation(line: 69, column: 12, scope: !79) +!81 = !DILocalVariable(name: "size", scope: !82, file: !3, line: 77, type: !62) +!82 = distinct !DISubprogram(name: "caller", scope: !3, file: !3, line: 76, type: !83, scopeLine: 76, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!83 = !DISubroutineType(types: !84) +!84 = !{!11} +!85 = !DILocation(line: 77, column: 13, scope: !82) +!86 = !DILocalVariable(name: "A", scope: !82, file: !3, line: 78, type: !6) +!87 = !DILocation(line: 78, column: 17, scope: !82) +!88 = !DILocalVariable(name: "B", scope: !82, file: !3, line: 79, type: !6) +!89 = !DILocation(line: 79, column: 17, scope: !82) +!90 = !DILocalVariable(name: "res", scope: !82, file: !3, line: 80, type: !13) +!91 = !DILocation(line: 80, column: 18, scope: !82) +!92 = !DILocalVariable(name: "ret", scope: !82, file: !3, line: 81, type: !11) +!93 = !DILocation(line: 81, column: 7, scope: !82) +!94 = !DILocalVariable(name: "err", scope: !82, file: !3, line: 83, type: !11) +!95 = !DILocation(line: 83, column: 7, scope: !82) diff --git a/llvm/test/CodeGen/X86/stack-frame-printer.ll b/llvm/test/CodeGen/X86/stack-frame-printer.ll new file mode 100644 --- /dev/null +++ b/llvm/test/CodeGen/X86/stack-frame-printer.ll @@ -0,0 +1,303 @@ +; Test basic output of the -print-stack-frame pass + +; ensure basic output works +; RUN: llc -mcpu=corei7 -O1 -print-stack-frame < %s 2>&1 >/dev/null | FileCheck %s + +; check additional slots are displayed when stack is not optimized +; RUN: llc -mcpu=corei7 -O0 -print-stack-frame < %s 2>&1 >/dev/null | FileCheck %s --check-prefix=NO_COLORING + +; check more complex cases +; RUN: llc %s -print-stack-frame -o /dev/null --march=x86 -mcpu=i386 2>&1 | FileCheck %s --check-prefix=BOTH --check-prefix=DEBUG + +; check output without debug info +; RUN: opt %s -strip -S | llc -print-stack-frame -o /dev/null --march=x86 -mcpu=i386 2>&1 | FileCheck %s --check-prefix=BOTH --check-prefix=STRIPPED + +target triple = "x86_64-unknown-linux-gnu" + +; CHECK: # Stack Layout: stackSizeWarning +; CHECK: Offset{{.*}}Align{{.*}}Size +; CHECK: [SP-88]{{.*}}16{{.*}}80 +; CHECK: buffer @ frame-diags.c:30 +; NO_COLORING: [SP-168]{{.*}}16{{.*}}80 +; CHECK: buffer2 @ frame-diags.c:33 +define void @stackSizeWarning() { +entry: + %buffer = alloca [80 x i8], align 16 + %buffer2 = alloca [80 x i8], align 16 + call void @llvm.dbg.declare(metadata ptr %buffer, metadata !25, metadata !DIExpression()), !dbg !39 + call void @llvm.dbg.declare(metadata ptr %buffer2, metadata !31, metadata !DIExpression()), !dbg !40 + ret void +} + +; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn +declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 + +; BOTH: # Stack Layout: cleanup_array +; BOTH: Offset{{.*}}Align{{.*}}Size +; BOTH: [SP+4]{{.+}}16{{.+}}4 +; DEBUG: a @ dot.c:13 +; STRIPPED-NOT: a @ dot.c:13 +; BOTH: [SP-4]{{.+}}Spill 8{{.+}}4 +define void @cleanup_array(ptr %0) #1 { + %2 = alloca ptr, align 8 + store ptr %0, ptr %2, align 8 + call void @llvm.dbg.declare(metadata ptr %2, metadata !41, metadata !DIExpression()), !dbg !46 + ret void +} + +; BOTH: # Stack Layout: cleanup_result +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP+4]{{.+}}16{{.+}}4 +; DEBUG: res @ dot.c:21 +; STRIPPED-NOT: res @ dot.c:21 +; BOTH: [SP-4]{{.+}}Spill 8{{.+}}4 +define void @cleanup_result(ptr %0) #1 { + %2 = alloca ptr, align 8 + store ptr %0, ptr %2, align 8 + call void @llvm.dbg.declare(metadata ptr %2, metadata !47, metadata !DIExpression()), !dbg !51 + ret void +} + +; BOTH: # Stack Layout: do_work +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP+12]{{.+}}8{{.+}}4 +; DEBUG: out @ dot.c:32 +; STRIPPED-NOT: out @ dot.c:32 +; BOTH: [SP+8]{{.+}}4{{.+}}4 +; BOTH: [SP+4]{{.+}}16{{.+}}4 +; DEBUG: A @ dot.c:32 +; STRIPPED-NOT: A @ dot.c:32 +; BOTH: [SP-4]{{.+}}Spill 8{{.+}}4 +; BOTH: [SP-12]{{.+}}8{{.+}}4 +; DEBUG: AB @ dot.c:38 +; STRIPPED-NOT: AB @ dot.c:38 +; BOTH: [SP-16]{{.+}}4{{.+}}4 +; DEBUG: i @ dot.c:55 +; STRIPPED-NOT: i @ dot.c:55 +; BOTH: [SP-20]{{.+}}8{{.+}}4 +; DEBUG: B @ dot.c:32 +; STRIPPED-NOT: B @ dot.c:32 +; BOTH: [SP-24]{{.+}}4{{.+}}4 +; DEBUG: len @ dot.c:37 +; STRIPPED-NOT: len @ dot.c:37 +; BOTH: [SP-28]{{.+}}4{{.+}}4 +; BOTH: [SP-32]{{.+}}4{{.+}}4 +; DEBUG: sum @ dot.c:54 +; STRIPPED-NOT: sum @ dot.c:54 +define i32 @do_work(ptr %0, ptr %1, ptr %2) #1 { + %4 = alloca i32, align 4 + %5 = alloca ptr, align 8 + %6 = alloca ptr, align 8 + %7 = alloca ptr, align 8 + %8 = alloca i32, align 4 + %9 = alloca ptr, align 8 + %10 = alloca i32, align 4 + %11 = alloca i32, align 4 + store ptr %0, ptr %5, align 8 + call void @llvm.dbg.declare(metadata ptr %5, metadata !52, metadata !DIExpression()), !dbg !56 + call void @llvm.dbg.declare(metadata ptr %6, metadata !57, metadata !DIExpression()), !dbg !58 + store ptr %2, ptr %7, align 8 + call void @llvm.dbg.declare(metadata ptr %7, metadata !59, metadata !DIExpression()), !dbg !60 + call void @llvm.dbg.declare(metadata ptr %8, metadata !61, metadata !DIExpression()), !dbg !63 + call void @llvm.dbg.declare(metadata ptr %9, metadata !64, metadata !DIExpression()), !dbg !65 + store ptr null, ptr %9, align 8 + store ptr null, ptr null, align 8 + store i32 0, ptr %9, align 8 + %12 = load i32, ptr %8, align 4 + store i32 %12, ptr null, align 8 + call void @llvm.dbg.declare(metadata ptr %10, metadata !66, metadata !DIExpression()), !dbg !67 + call void @llvm.dbg.declare(metadata ptr %11, metadata !68, metadata !DIExpression()), !dbg !70 + store i32 0, ptr %11, align 4 + br label %13 + +13: ; preds = %16, %3 + %14 = load i32, ptr %11, align 4 + %15 = icmp slt i32 %14, 0 + br i1 %15, label %16, label %18 + +16: ; preds = %13 + %17 = load i32, ptr %6, align 4 + store i32 %17, ptr null, align 4 + br label %13 + +18: ; preds = %13 + store i32 0, ptr %4, align 4 + ret i32 0 +} + +; BOTH: # Stack Layout: gen_array +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP+4]{{.+}}16{{.+}}4 +; DEBUG: size @ dot.c:62 +; STRIPPED-NOT: size @ dot.c:62 +; BOTH: [SP-4]{{.+}}Spill 8{{.+}}4 +; BOTH: [SP-12]{{.+}}8{{.+}}4 +; DEBUG: res @ dot.c:65 +; STRIPPED-NOT: res @ dot.c:65 +; BOTH: [SP-16]{{.+}}4{{.+}}4 +; DEBUG: i @ dot.c:69 +; STRIPPED-NOT: i @ dot.c:69 +; BOTH: [SP-20]{{.+}}8 4 +define ptr @gen_array(i32 %0) #1 { + %2 = alloca ptr, align 8 + %3 = alloca i32, align 4 + %4 = alloca ptr, align 8 + %5 = alloca i32, align 4 + store i32 %0, ptr %3, align 4 + call void @llvm.dbg.declare(metadata ptr %3, metadata !71, metadata !DIExpression()), !dbg !75 + call void @llvm.dbg.declare(metadata ptr %4, metadata !76, metadata !DIExpression()), !dbg !77 + store ptr null, ptr %4, align 8 + call void @llvm.dbg.declare(metadata ptr %5, metadata !78, metadata !DIExpression()), !dbg !80 + store i32 0, ptr %5, align 4 + ret ptr null +} + +; BOTH: # Stack Layout: caller +; BOTH: Offset{{.+}}Align{{.+}}Size +; BOTH: [SP-4]{{.+}}Spill 8{{.+}}4 +; BOTH: [SP-12]{{.+}}8{{.+}}4 +; DEBUG: res @ dot.c:80 +; STRIPPED-NOT: res @ dot.c:80 +; BOTH: [SP-20]{{.+}}8{{.+}}4 +; DEBUG: B @ dot.c:79 +; STRIPPED-NOT: B @ dot.c:79 +; BOTH: [SP-28]{{.+}}8{{.+}}4 +; DEBUG: A @ dot.c:78 +; STRIPPED-NOT: A @ dot.c:78 +; BOTH: [SP-32]{{.+}}4{{.+}}4 +; DEBUG: ret @ dot.c:81 +; STRIPPED-NOT: ret @ dot.c:81 +; BOTH: [SP-36]{{.+}}4{{.+}}4 +; BOTH: [SP-40]{{.+}}4{{.+}}4 +; DEBUG: err @ dot.c:83 +; STRIPPED-NOT: err @ dot.c:83 +; BOTH: [SP-44]{{.+}}4{{.+}}4 +; DEBUG: size @ dot.c:77 +; STRIPPED-NOT: size @ dot.c:77 +define i32 @caller() #1 { + %1 = alloca i32, align 4 + %2 = alloca i32, align 4 + %3 = alloca ptr, align 8 + %4 = alloca ptr, align 8 + %5 = alloca ptr, align 8 + %6 = alloca i32, align 4 + %7 = alloca i32, align 4 + call void @llvm.dbg.declare(metadata ptr %2, metadata !81, metadata !DIExpression()), !dbg !85 + call void @llvm.dbg.declare(metadata ptr %3, metadata !86, metadata !DIExpression()), !dbg !87 + call void @llvm.dbg.declare(metadata ptr %4, metadata !88, metadata !DIExpression()), !dbg !89 + store ptr null, ptr %4, align 8 + call void @llvm.dbg.declare(metadata ptr %5, metadata !90, metadata !DIExpression()), !dbg !91 + call void @llvm.dbg.declare(metadata ptr %6, metadata !92, metadata !DIExpression()), !dbg !93 + call void @llvm.dbg.declare(metadata ptr %7, metadata !94, metadata !DIExpression()), !dbg !95 + %8 = call i32 @do_work(ptr %3, ptr null, ptr null) + store i32 0, ptr %6, align 4 + store i32 0, ptr %1, align 4 + call void @cleanup_result(ptr %5) + ret i32 0 +} + +; uselistorder directives +uselistorder ptr @llvm.dbg.declare, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 18 } + +attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn } +attributes #1 = { "frame-pointer"="all" } + +!llvm.dbg.cu = !{!0, !2} +!llvm.module.flags = !{!18, !19, !20, !21, !22, !23, !24} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Fuchsia clang version 16.0.0 (git@github.com:llvm/llvm-project.git bb51a99e67747be81c9b523fd5ddcc8bf91a1ffb)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) +!1 = !DIFile(filename: "frame-diags.c", directory: "/usr/local/google/home/paulkirth/llvm-sysroot/clang/test/Frontend", checksumkind: CSK_MD5, checksum: "01b5d69ce5387b02de2d1191b28a0b7f") +!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "Fuchsia clang version 16.0.0 (https://llvm.googlesource.com/llvm-project f85c1f3b7c0bda64aef12201e2f5bbad6028582d)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, retainedTypes: !4, splitDebugInlining: false, nameTableKind: None) +!3 = !DIFile(filename: "dot.c", directory: "/usr/local/google/home/paulkirth/test/stack-frame-dump", checksumkind: CSK_MD5, checksum: "bd8ba1fe67914c5427978672a19a51d2") +!4 = !{!5, !6, !10, !13} +!5 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) +!6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) +!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Array", file: !3, line: 3, size: 128, elements: !8) +!8 = !{!9, !12} +!9 = !DIDerivedType(tag: DW_TAG_member, name: "data", scope: !7, file: !3, line: 4, baseType: !10, size: 64) +!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64) +!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!12 = !DIDerivedType(tag: DW_TAG_member, name: "size", scope: !7, file: !3, line: 5, baseType: !11, size: 32, offset: 64) +!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64) +!14 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Result", file: !3, line: 8, size: 128, elements: !15) +!15 = !{!16, !17} +!16 = !DIDerivedType(tag: DW_TAG_member, name: "data", scope: !14, file: !3, line: 9, baseType: !6, size: 64) +!17 = !DIDerivedType(tag: DW_TAG_member, name: "sum", scope: !14, file: !3, line: 10, baseType: !11, size: 32, offset: 64) +!18 = !{i32 7, !"Dwarf Version", i32 5} +!19 = !{i32 2, !"Debug Info Version", i32 3} +!20 = !{i32 1, !"wchar_size", i32 4} +!21 = !{i32 8, !"PIC Level", i32 2} +!22 = !{i32 7, !"PIE Level", i32 2} +!23 = !{i32 7, !"uwtable", i32 2} +!24 = !{i32 7, !"frame-pointer", i32 2} +!25 = !DILocalVariable(name: "buffer", scope: !26, file: !1, line: 30, type: !32) +!26 = distinct !DILexicalBlock(scope: !27, file: !1, line: 29, column: 3) +!27 = distinct !DISubprogram(name: "stackSizeWarning", scope: !1, file: !1, line: 28, type: !28, scopeLine: 28, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !30) +!28 = !DISubroutineType(types: !29) +!29 = !{null} +!30 = !{!25, !31, !36, !37} +!31 = !DILocalVariable(name: "buffer2", scope: !27, file: !1, line: 33, type: !32) +!32 = !DICompositeType(tag: DW_TAG_array_type, baseType: !33, size: 640, elements: !34) +!33 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) +!34 = !{!35} +!35 = !DISubrange(count: 80) +!36 = !DILocalVariable(name: "a", scope: !27, file: !1, line: 34, type: !11) +!37 = !DILocalVariable(name: "b", scope: !27, file: !1, line: 35, type: !38) +!38 = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) +!39 = !DILocation(line: 30, column: 10, scope: !26) +!40 = !DILocation(line: 33, column: 8, scope: !27) +!41 = !DILocalVariable(name: "a", arg: 1, scope: !42, file: !3, line: 13, type: !6) +!42 = distinct !DISubprogram(name: "cleanup_array", scope: !3, file: !3, line: 13, type: !43, scopeLine: 13, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!43 = !DISubroutineType(types: !44) +!44 = !{null, !6} +!45 = !{} +!46 = !DILocation(line: 13, column: 34, scope: !42) +!47 = !DILocalVariable(name: "res", arg: 1, scope: !48, file: !3, line: 21, type: !13) +!48 = distinct !DISubprogram(name: "cleanup_result", scope: !3, file: !3, line: 21, type: !49, scopeLine: 21, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!49 = !DISubroutineType(types: !50) +!50 = !{null, !13} +!51 = !DILocation(line: 21, column: 36, scope: !48) +!52 = !DILocalVariable(name: "A", arg: 1, scope: !53, file: !3, line: 32, type: !6) +!53 = distinct !DISubprogram(name: "do_work", scope: !3, file: !3, line: 32, type: !54, scopeLine: 32, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!54 = !DISubroutineType(types: !55) +!55 = !{!11, !6, !6, !13} +!56 = !DILocation(line: 32, column: 27, scope: !53) +!57 = !DILocalVariable(name: "B", arg: 2, scope: !53, file: !3, line: 32, type: !6) +!58 = !DILocation(line: 32, column: 44, scope: !53) +!59 = !DILocalVariable(name: "out", arg: 3, scope: !53, file: !3, line: 32, type: !13) +!60 = !DILocation(line: 32, column: 62, scope: !53) +!61 = !DILocalVariable(name: "len", scope: !53, file: !3, line: 37, type: !62) +!62 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !11) +!63 = !DILocation(line: 37, column: 13, scope: !53) +!64 = !DILocalVariable(name: "AB", scope: !53, file: !3, line: 38, type: !6) +!65 = !DILocation(line: 38, column: 17, scope: !53) +!66 = !DILocalVariable(name: "sum", scope: !53, file: !3, line: 54, type: !11) +!67 = !DILocation(line: 54, column: 7, scope: !53) +!68 = !DILocalVariable(name: "i", scope: !69, file: !3, line: 55, type: !11) +!69 = distinct !DILexicalBlock(scope: !53, file: !3, line: 55, column: 3) +!70 = !DILocation(line: 55, column: 12, scope: !69) +!71 = !DILocalVariable(name: "size", arg: 1, scope: !72, file: !3, line: 62, type: !11) +!72 = distinct !DISubprogram(name: "gen_array", scope: !3, file: !3, line: 62, type: !73, scopeLine: 62, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!73 = !DISubroutineType(types: !74) +!74 = !{!6, !11} +!75 = !DILocation(line: 62, column: 29, scope: !72) +!76 = !DILocalVariable(name: "res", scope: !72, file: !3, line: 65, type: !6) +!77 = !DILocation(line: 65, column: 17, scope: !72) +!78 = !DILocalVariable(name: "i", scope: !79, file: !3, line: 69, type: !11) +!79 = distinct !DILexicalBlock(scope: !72, file: !3, line: 69, column: 3) +!80 = !DILocation(line: 69, column: 12, scope: !79) +!81 = !DILocalVariable(name: "size", scope: !82, file: !3, line: 77, type: !62) +!82 = distinct !DISubprogram(name: "caller", scope: !3, file: !3, line: 76, type: !83, scopeLine: 76, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45) +!83 = !DISubroutineType(types: !84) +!84 = !{!11} +!85 = !DILocation(line: 77, column: 13, scope: !82) +!86 = !DILocalVariable(name: "A", scope: !82, file: !3, line: 78, type: !6) +!87 = !DILocation(line: 78, column: 17, scope: !82) +!88 = !DILocalVariable(name: "B", scope: !82, file: !3, line: 79, type: !6) +!89 = !DILocation(line: 79, column: 17, scope: !82) +!90 = !DILocalVariable(name: "res", scope: !82, file: !3, line: 80, type: !13) +!91 = !DILocation(line: 80, column: 18, scope: !82) +!92 = !DILocalVariable(name: "ret", scope: !82, file: !3, line: 81, type: !11) +!93 = !DILocation(line: 81, column: 7, scope: !82) +!94 = !DILocalVariable(name: "err", scope: !82, file: !3, line: 83, type: !11) +!95 = !DILocation(line: 83, column: 7, scope: !82)