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13fb5a3f1f
MachineInstr.h and MachineInstrBuilder.h are very popular headers, widely included across all LLVM backends. It turns out that there only a handful of TUs that actually care about DI operands on MachineInstrs. After this change, touching DebugInfoMetadata.h and rebuilding llc only needs 112 actions instead of 542. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266351 91177308-0d34-0410-b5e6-96231b3b80d8
1005 lines
32 KiB
C++
1005 lines
32 KiB
C++
//===- MIRPrinter.cpp - MIR serialization format printer ------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the class that prints out the LLVM IR and machine
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// functions using the MIR serialization format.
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//
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//===----------------------------------------------------------------------===//
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#include "MIRPrinter.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/CodeGen/GlobalISel/RegisterBank.h"
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#include "llvm/CodeGen/MIRYamlMapping.h"
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#include "llvm/CodeGen/MachineConstantPool.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineMemOperand.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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#include "llvm/CodeGen/MachineRegisterInfo.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DebugInfo.h"
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#include "llvm/IR/IRPrintingPasses.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/ModuleSlotTracker.h"
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/YAMLTraits.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Target/TargetInstrInfo.h"
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#include "llvm/Target/TargetSubtargetInfo.h"
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using namespace llvm;
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namespace {
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/// This structure describes how to print out stack object references.
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struct FrameIndexOperand {
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std::string Name;
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unsigned ID;
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bool IsFixed;
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FrameIndexOperand(StringRef Name, unsigned ID, bool IsFixed)
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: Name(Name.str()), ID(ID), IsFixed(IsFixed) {}
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/// Return an ordinary stack object reference.
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static FrameIndexOperand create(StringRef Name, unsigned ID) {
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return FrameIndexOperand(Name, ID, /*IsFixed=*/false);
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}
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/// Return a fixed stack object reference.
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static FrameIndexOperand createFixed(unsigned ID) {
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return FrameIndexOperand("", ID, /*IsFixed=*/true);
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}
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};
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} // end anonymous namespace
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namespace llvm {
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/// This class prints out the machine functions using the MIR serialization
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/// format.
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class MIRPrinter {
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raw_ostream &OS;
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DenseMap<const uint32_t *, unsigned> RegisterMaskIds;
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/// Maps from stack object indices to operand indices which will be used when
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/// printing frame index machine operands.
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DenseMap<int, FrameIndexOperand> StackObjectOperandMapping;
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public:
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MIRPrinter(raw_ostream &OS) : OS(OS) {}
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void print(const MachineFunction &MF);
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void convert(yaml::MachineFunction &MF, const MachineRegisterInfo &RegInfo,
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const TargetRegisterInfo *TRI);
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void convert(ModuleSlotTracker &MST, yaml::MachineFrameInfo &YamlMFI,
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const MachineFrameInfo &MFI);
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void convert(yaml::MachineFunction &MF,
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const MachineConstantPool &ConstantPool);
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void convert(ModuleSlotTracker &MST, yaml::MachineJumpTable &YamlJTI,
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const MachineJumpTableInfo &JTI);
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void convertStackObjects(yaml::MachineFunction &MF,
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const MachineFrameInfo &MFI, MachineModuleInfo &MMI,
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ModuleSlotTracker &MST,
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const TargetRegisterInfo *TRI);
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private:
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void initRegisterMaskIds(const MachineFunction &MF);
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};
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/// This class prints out the machine instructions using the MIR serialization
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/// format.
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class MIPrinter {
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raw_ostream &OS;
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ModuleSlotTracker &MST;
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const DenseMap<const uint32_t *, unsigned> &RegisterMaskIds;
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const DenseMap<int, FrameIndexOperand> &StackObjectOperandMapping;
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public:
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MIPrinter(raw_ostream &OS, ModuleSlotTracker &MST,
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const DenseMap<const uint32_t *, unsigned> &RegisterMaskIds,
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const DenseMap<int, FrameIndexOperand> &StackObjectOperandMapping)
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: OS(OS), MST(MST), RegisterMaskIds(RegisterMaskIds),
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StackObjectOperandMapping(StackObjectOperandMapping) {}
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void print(const MachineBasicBlock &MBB);
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void print(const MachineInstr &MI);
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void printMBBReference(const MachineBasicBlock &MBB);
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void printIRBlockReference(const BasicBlock &BB);
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void printIRValueReference(const Value &V);
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void printStackObjectReference(int FrameIndex);
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void printOffset(int64_t Offset);
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void printTargetFlags(const MachineOperand &Op);
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void print(const MachineOperand &Op, const TargetRegisterInfo *TRI,
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unsigned I, bool ShouldPrintRegisterTies,
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const MachineRegisterInfo *MRI = nullptr, bool IsDef = false);
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void print(const MachineMemOperand &Op);
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void print(const MCCFIInstruction &CFI, const TargetRegisterInfo *TRI);
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};
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} // end namespace llvm
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namespace llvm {
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namespace yaml {
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/// This struct serializes the LLVM IR module.
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template <> struct BlockScalarTraits<Module> {
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static void output(const Module &Mod, void *Ctxt, raw_ostream &OS) {
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Mod.print(OS, nullptr);
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}
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static StringRef input(StringRef Str, void *Ctxt, Module &Mod) {
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llvm_unreachable("LLVM Module is supposed to be parsed separately");
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return "";
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}
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};
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} // end namespace yaml
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} // end namespace llvm
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static void printReg(unsigned Reg, raw_ostream &OS,
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const TargetRegisterInfo *TRI) {
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// TODO: Print Stack Slots.
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if (!Reg)
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OS << '_';
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else if (TargetRegisterInfo::isVirtualRegister(Reg))
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OS << '%' << TargetRegisterInfo::virtReg2Index(Reg);
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else if (Reg < TRI->getNumRegs())
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OS << '%' << StringRef(TRI->getName(Reg)).lower();
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else
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llvm_unreachable("Can't print this kind of register yet");
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}
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static void printReg(unsigned Reg, yaml::StringValue &Dest,
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const TargetRegisterInfo *TRI) {
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raw_string_ostream OS(Dest.Value);
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printReg(Reg, OS, TRI);
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}
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void MIRPrinter::print(const MachineFunction &MF) {
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initRegisterMaskIds(MF);
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yaml::MachineFunction YamlMF;
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YamlMF.Name = MF.getName();
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YamlMF.Alignment = MF.getAlignment();
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YamlMF.ExposesReturnsTwice = MF.exposesReturnsTwice();
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YamlMF.HasInlineAsm = MF.hasInlineAsm();
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YamlMF.AllVRegsAllocated = MF.getProperties().hasProperty(
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MachineFunctionProperties::Property::AllVRegsAllocated);
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convert(YamlMF, MF.getRegInfo(), MF.getSubtarget().getRegisterInfo());
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ModuleSlotTracker MST(MF.getFunction()->getParent());
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MST.incorporateFunction(*MF.getFunction());
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convert(MST, YamlMF.FrameInfo, *MF.getFrameInfo());
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convertStackObjects(YamlMF, *MF.getFrameInfo(), MF.getMMI(), MST,
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MF.getSubtarget().getRegisterInfo());
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if (const auto *ConstantPool = MF.getConstantPool())
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convert(YamlMF, *ConstantPool);
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if (const auto *JumpTableInfo = MF.getJumpTableInfo())
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convert(MST, YamlMF.JumpTableInfo, *JumpTableInfo);
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raw_string_ostream StrOS(YamlMF.Body.Value.Value);
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bool IsNewlineNeeded = false;
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for (const auto &MBB : MF) {
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if (IsNewlineNeeded)
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StrOS << "\n";
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MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
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.print(MBB);
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IsNewlineNeeded = true;
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}
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StrOS.flush();
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yaml::Output Out(OS);
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Out << YamlMF;
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}
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void MIRPrinter::convert(yaml::MachineFunction &MF,
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const MachineRegisterInfo &RegInfo,
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const TargetRegisterInfo *TRI) {
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MF.IsSSA = RegInfo.isSSA();
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MF.TracksRegLiveness = RegInfo.tracksLiveness();
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MF.TracksSubRegLiveness = RegInfo.subRegLivenessEnabled();
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// Print the virtual register definitions.
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for (unsigned I = 0, E = RegInfo.getNumVirtRegs(); I < E; ++I) {
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unsigned Reg = TargetRegisterInfo::index2VirtReg(I);
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yaml::VirtualRegisterDefinition VReg;
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VReg.ID = I;
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if (RegInfo.getRegClassOrNull(Reg))
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VReg.Class =
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StringRef(TRI->getRegClassName(RegInfo.getRegClass(Reg))).lower();
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else if (RegInfo.getRegBankOrNull(Reg))
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VReg.Class = StringRef(RegInfo.getRegBankOrNull(Reg)->getName()).lower();
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else {
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VReg.Class = std::string("_");
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assert(RegInfo.getSize(Reg) && "Generic registers must have a size");
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}
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unsigned PreferredReg = RegInfo.getSimpleHint(Reg);
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if (PreferredReg)
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printReg(PreferredReg, VReg.PreferredRegister, TRI);
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MF.VirtualRegisters.push_back(VReg);
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}
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// Print the live ins.
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for (auto I = RegInfo.livein_begin(), E = RegInfo.livein_end(); I != E; ++I) {
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yaml::MachineFunctionLiveIn LiveIn;
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printReg(I->first, LiveIn.Register, TRI);
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if (I->second)
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printReg(I->second, LiveIn.VirtualRegister, TRI);
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MF.LiveIns.push_back(LiveIn);
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}
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// The used physical register mask is printed as an inverted callee saved
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// register mask.
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const BitVector &UsedPhysRegMask = RegInfo.getUsedPhysRegsMask();
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if (UsedPhysRegMask.none())
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return;
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std::vector<yaml::FlowStringValue> CalleeSavedRegisters;
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for (unsigned I = 0, E = UsedPhysRegMask.size(); I != E; ++I) {
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if (!UsedPhysRegMask[I]) {
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yaml::FlowStringValue Reg;
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printReg(I, Reg, TRI);
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CalleeSavedRegisters.push_back(Reg);
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}
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}
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MF.CalleeSavedRegisters = CalleeSavedRegisters;
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}
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void MIRPrinter::convert(ModuleSlotTracker &MST,
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yaml::MachineFrameInfo &YamlMFI,
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const MachineFrameInfo &MFI) {
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YamlMFI.IsFrameAddressTaken = MFI.isFrameAddressTaken();
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YamlMFI.IsReturnAddressTaken = MFI.isReturnAddressTaken();
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YamlMFI.HasStackMap = MFI.hasStackMap();
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YamlMFI.HasPatchPoint = MFI.hasPatchPoint();
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YamlMFI.StackSize = MFI.getStackSize();
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YamlMFI.OffsetAdjustment = MFI.getOffsetAdjustment();
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YamlMFI.MaxAlignment = MFI.getMaxAlignment();
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YamlMFI.AdjustsStack = MFI.adjustsStack();
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YamlMFI.HasCalls = MFI.hasCalls();
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YamlMFI.MaxCallFrameSize = MFI.getMaxCallFrameSize();
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YamlMFI.HasOpaqueSPAdjustment = MFI.hasOpaqueSPAdjustment();
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YamlMFI.HasVAStart = MFI.hasVAStart();
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YamlMFI.HasMustTailInVarArgFunc = MFI.hasMustTailInVarArgFunc();
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if (MFI.getSavePoint()) {
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raw_string_ostream StrOS(YamlMFI.SavePoint.Value);
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MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
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.printMBBReference(*MFI.getSavePoint());
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}
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if (MFI.getRestorePoint()) {
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raw_string_ostream StrOS(YamlMFI.RestorePoint.Value);
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MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
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.printMBBReference(*MFI.getRestorePoint());
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}
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}
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void MIRPrinter::convertStackObjects(yaml::MachineFunction &MF,
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const MachineFrameInfo &MFI,
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MachineModuleInfo &MMI,
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ModuleSlotTracker &MST,
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const TargetRegisterInfo *TRI) {
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// Process fixed stack objects.
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unsigned ID = 0;
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for (int I = MFI.getObjectIndexBegin(); I < 0; ++I) {
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if (MFI.isDeadObjectIndex(I))
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continue;
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yaml::FixedMachineStackObject YamlObject;
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YamlObject.ID = ID;
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YamlObject.Type = MFI.isSpillSlotObjectIndex(I)
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? yaml::FixedMachineStackObject::SpillSlot
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: yaml::FixedMachineStackObject::DefaultType;
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YamlObject.Offset = MFI.getObjectOffset(I);
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YamlObject.Size = MFI.getObjectSize(I);
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YamlObject.Alignment = MFI.getObjectAlignment(I);
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YamlObject.IsImmutable = MFI.isImmutableObjectIndex(I);
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YamlObject.IsAliased = MFI.isAliasedObjectIndex(I);
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MF.FixedStackObjects.push_back(YamlObject);
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StackObjectOperandMapping.insert(
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std::make_pair(I, FrameIndexOperand::createFixed(ID++)));
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}
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// Process ordinary stack objects.
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ID = 0;
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for (int I = 0, E = MFI.getObjectIndexEnd(); I < E; ++I) {
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if (MFI.isDeadObjectIndex(I))
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continue;
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yaml::MachineStackObject YamlObject;
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YamlObject.ID = ID;
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if (const auto *Alloca = MFI.getObjectAllocation(I))
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YamlObject.Name.Value =
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Alloca->hasName() ? Alloca->getName() : "<unnamed alloca>";
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YamlObject.Type = MFI.isSpillSlotObjectIndex(I)
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? yaml::MachineStackObject::SpillSlot
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: MFI.isVariableSizedObjectIndex(I)
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? yaml::MachineStackObject::VariableSized
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: yaml::MachineStackObject::DefaultType;
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YamlObject.Offset = MFI.getObjectOffset(I);
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YamlObject.Size = MFI.getObjectSize(I);
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YamlObject.Alignment = MFI.getObjectAlignment(I);
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MF.StackObjects.push_back(YamlObject);
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StackObjectOperandMapping.insert(std::make_pair(
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I, FrameIndexOperand::create(YamlObject.Name.Value, ID++)));
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}
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for (const auto &CSInfo : MFI.getCalleeSavedInfo()) {
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yaml::StringValue Reg;
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printReg(CSInfo.getReg(), Reg, TRI);
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auto StackObjectInfo = StackObjectOperandMapping.find(CSInfo.getFrameIdx());
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assert(StackObjectInfo != StackObjectOperandMapping.end() &&
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"Invalid stack object index");
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const FrameIndexOperand &StackObject = StackObjectInfo->second;
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if (StackObject.IsFixed)
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MF.FixedStackObjects[StackObject.ID].CalleeSavedRegister = Reg;
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else
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MF.StackObjects[StackObject.ID].CalleeSavedRegister = Reg;
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}
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for (unsigned I = 0, E = MFI.getLocalFrameObjectCount(); I < E; ++I) {
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auto LocalObject = MFI.getLocalFrameObjectMap(I);
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auto StackObjectInfo = StackObjectOperandMapping.find(LocalObject.first);
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assert(StackObjectInfo != StackObjectOperandMapping.end() &&
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"Invalid stack object index");
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const FrameIndexOperand &StackObject = StackObjectInfo->second;
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assert(!StackObject.IsFixed && "Expected a locally mapped stack object");
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MF.StackObjects[StackObject.ID].LocalOffset = LocalObject.second;
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}
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// Print the stack object references in the frame information class after
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// converting the stack objects.
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if (MFI.hasStackProtectorIndex()) {
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raw_string_ostream StrOS(MF.FrameInfo.StackProtector.Value);
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MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
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.printStackObjectReference(MFI.getStackProtectorIndex());
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}
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// Print the debug variable information.
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for (MachineModuleInfo::VariableDbgInfo &DebugVar :
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MMI.getVariableDbgInfo()) {
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auto StackObjectInfo = StackObjectOperandMapping.find(DebugVar.Slot);
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assert(StackObjectInfo != StackObjectOperandMapping.end() &&
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"Invalid stack object index");
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const FrameIndexOperand &StackObject = StackObjectInfo->second;
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assert(!StackObject.IsFixed && "Expected a non-fixed stack object");
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auto &Object = MF.StackObjects[StackObject.ID];
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{
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raw_string_ostream StrOS(Object.DebugVar.Value);
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DebugVar.Var->printAsOperand(StrOS, MST);
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}
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{
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raw_string_ostream StrOS(Object.DebugExpr.Value);
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DebugVar.Expr->printAsOperand(StrOS, MST);
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}
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{
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raw_string_ostream StrOS(Object.DebugLoc.Value);
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DebugVar.Loc->printAsOperand(StrOS, MST);
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}
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}
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}
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void MIRPrinter::convert(yaml::MachineFunction &MF,
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const MachineConstantPool &ConstantPool) {
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unsigned ID = 0;
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for (const MachineConstantPoolEntry &Constant : ConstantPool.getConstants()) {
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// TODO: Serialize target specific constant pool entries.
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if (Constant.isMachineConstantPoolEntry())
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llvm_unreachable("Can't print target specific constant pool entries yet");
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yaml::MachineConstantPoolValue YamlConstant;
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std::string Str;
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raw_string_ostream StrOS(Str);
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Constant.Val.ConstVal->printAsOperand(StrOS);
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YamlConstant.ID = ID++;
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YamlConstant.Value = StrOS.str();
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YamlConstant.Alignment = Constant.getAlignment();
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MF.Constants.push_back(YamlConstant);
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}
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}
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void MIRPrinter::convert(ModuleSlotTracker &MST,
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yaml::MachineJumpTable &YamlJTI,
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const MachineJumpTableInfo &JTI) {
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YamlJTI.Kind = JTI.getEntryKind();
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unsigned ID = 0;
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for (const auto &Table : JTI.getJumpTables()) {
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std::string Str;
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yaml::MachineJumpTable::Entry Entry;
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Entry.ID = ID++;
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for (const auto *MBB : Table.MBBs) {
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raw_string_ostream StrOS(Str);
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MIPrinter(StrOS, MST, RegisterMaskIds, StackObjectOperandMapping)
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.printMBBReference(*MBB);
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Entry.Blocks.push_back(StrOS.str());
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Str.clear();
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}
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YamlJTI.Entries.push_back(Entry);
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}
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}
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void MIRPrinter::initRegisterMaskIds(const MachineFunction &MF) {
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const auto *TRI = MF.getSubtarget().getRegisterInfo();
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unsigned I = 0;
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for (const uint32_t *Mask : TRI->getRegMasks())
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RegisterMaskIds.insert(std::make_pair(Mask, I++));
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}
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void MIPrinter::print(const MachineBasicBlock &MBB) {
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assert(MBB.getNumber() >= 0 && "Invalid MBB number");
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OS << "bb." << MBB.getNumber();
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bool HasAttributes = false;
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if (const auto *BB = MBB.getBasicBlock()) {
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if (BB->hasName()) {
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OS << "." << BB->getName();
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} else {
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HasAttributes = true;
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OS << " (";
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int Slot = MST.getLocalSlot(BB);
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if (Slot == -1)
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OS << "<ir-block badref>";
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else
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OS << (Twine("%ir-block.") + Twine(Slot)).str();
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}
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}
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if (MBB.hasAddressTaken()) {
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OS << (HasAttributes ? ", " : " (");
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OS << "address-taken";
|
|
HasAttributes = true;
|
|
}
|
|
if (MBB.isEHPad()) {
|
|
OS << (HasAttributes ? ", " : " (");
|
|
OS << "landing-pad";
|
|
HasAttributes = true;
|
|
}
|
|
if (MBB.getAlignment()) {
|
|
OS << (HasAttributes ? ", " : " (");
|
|
OS << "align " << MBB.getAlignment();
|
|
HasAttributes = true;
|
|
}
|
|
if (HasAttributes)
|
|
OS << ")";
|
|
OS << ":\n";
|
|
|
|
bool HasLineAttributes = false;
|
|
// Print the successors
|
|
if (!MBB.succ_empty()) {
|
|
OS.indent(2) << "successors: ";
|
|
for (auto I = MBB.succ_begin(), E = MBB.succ_end(); I != E; ++I) {
|
|
if (I != MBB.succ_begin())
|
|
OS << ", ";
|
|
printMBBReference(**I);
|
|
if (MBB.hasSuccessorProbabilities())
|
|
OS << '(' << MBB.getSuccProbability(I) << ')';
|
|
}
|
|
OS << "\n";
|
|
HasLineAttributes = true;
|
|
}
|
|
|
|
// Print the live in registers.
|
|
const auto *TRI = MBB.getParent()->getSubtarget().getRegisterInfo();
|
|
assert(TRI && "Expected target register info");
|
|
if (!MBB.livein_empty()) {
|
|
OS.indent(2) << "liveins: ";
|
|
bool First = true;
|
|
for (const auto &LI : MBB.liveins()) {
|
|
if (!First)
|
|
OS << ", ";
|
|
First = false;
|
|
printReg(LI.PhysReg, OS, TRI);
|
|
if (LI.LaneMask != ~0u)
|
|
OS << ':' << PrintLaneMask(LI.LaneMask);
|
|
}
|
|
OS << "\n";
|
|
HasLineAttributes = true;
|
|
}
|
|
|
|
if (HasLineAttributes)
|
|
OS << "\n";
|
|
bool IsInBundle = false;
|
|
for (auto I = MBB.instr_begin(), E = MBB.instr_end(); I != E; ++I) {
|
|
const MachineInstr &MI = *I;
|
|
if (IsInBundle && !MI.isInsideBundle()) {
|
|
OS.indent(2) << "}\n";
|
|
IsInBundle = false;
|
|
}
|
|
OS.indent(IsInBundle ? 4 : 2);
|
|
print(MI);
|
|
if (!IsInBundle && MI.getFlag(MachineInstr::BundledSucc)) {
|
|
OS << " {";
|
|
IsInBundle = true;
|
|
}
|
|
OS << "\n";
|
|
}
|
|
if (IsInBundle)
|
|
OS.indent(2) << "}\n";
|
|
}
|
|
|
|
/// Return true when an instruction has tied register that can't be determined
|
|
/// by the instruction's descriptor.
|
|
static bool hasComplexRegisterTies(const MachineInstr &MI) {
|
|
const MCInstrDesc &MCID = MI.getDesc();
|
|
for (unsigned I = 0, E = MI.getNumOperands(); I < E; ++I) {
|
|
const auto &Operand = MI.getOperand(I);
|
|
if (!Operand.isReg() || Operand.isDef())
|
|
// Ignore the defined registers as MCID marks only the uses as tied.
|
|
continue;
|
|
int ExpectedTiedIdx = MCID.getOperandConstraint(I, MCOI::TIED_TO);
|
|
int TiedIdx = Operand.isTied() ? int(MI.findTiedOperandIdx(I)) : -1;
|
|
if (ExpectedTiedIdx != TiedIdx)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void MIPrinter::print(const MachineInstr &MI) {
|
|
const auto *MF = MI.getParent()->getParent();
|
|
const auto &MRI = MF->getRegInfo();
|
|
const auto &SubTarget = MF->getSubtarget();
|
|
const auto *TRI = SubTarget.getRegisterInfo();
|
|
assert(TRI && "Expected target register info");
|
|
const auto *TII = SubTarget.getInstrInfo();
|
|
assert(TII && "Expected target instruction info");
|
|
if (MI.isCFIInstruction())
|
|
assert(MI.getNumOperands() == 1 && "Expected 1 operand in CFI instruction");
|
|
|
|
bool ShouldPrintRegisterTies = hasComplexRegisterTies(MI);
|
|
unsigned I = 0, E = MI.getNumOperands();
|
|
for (; I < E && MI.getOperand(I).isReg() && MI.getOperand(I).isDef() &&
|
|
!MI.getOperand(I).isImplicit();
|
|
++I) {
|
|
if (I)
|
|
OS << ", ";
|
|
print(MI.getOperand(I), TRI, I, ShouldPrintRegisterTies, &MRI,
|
|
/*IsDef=*/true);
|
|
}
|
|
|
|
if (I)
|
|
OS << " = ";
|
|
if (MI.getFlag(MachineInstr::FrameSetup))
|
|
OS << "frame-setup ";
|
|
OS << TII->getName(MI.getOpcode());
|
|
if (isPreISelGenericOpcode(MI.getOpcode())) {
|
|
assert(MI.getType() && "Generic instructions must have a type");
|
|
OS << ' ';
|
|
MI.getType()->print(OS, /*IsForDebug*/ false, /*NoDetails*/ true);
|
|
}
|
|
if (I < E)
|
|
OS << ' ';
|
|
|
|
bool NeedComma = false;
|
|
for (; I < E; ++I) {
|
|
if (NeedComma)
|
|
OS << ", ";
|
|
print(MI.getOperand(I), TRI, I, ShouldPrintRegisterTies);
|
|
NeedComma = true;
|
|
}
|
|
|
|
if (MI.getDebugLoc()) {
|
|
if (NeedComma)
|
|
OS << ',';
|
|
OS << " debug-location ";
|
|
MI.getDebugLoc()->printAsOperand(OS, MST);
|
|
}
|
|
|
|
if (!MI.memoperands_empty()) {
|
|
OS << " :: ";
|
|
bool NeedComma = false;
|
|
for (const auto *Op : MI.memoperands()) {
|
|
if (NeedComma)
|
|
OS << ", ";
|
|
print(*Op);
|
|
NeedComma = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void MIPrinter::printMBBReference(const MachineBasicBlock &MBB) {
|
|
OS << "%bb." << MBB.getNumber();
|
|
if (const auto *BB = MBB.getBasicBlock()) {
|
|
if (BB->hasName())
|
|
OS << '.' << BB->getName();
|
|
}
|
|
}
|
|
|
|
static void printIRSlotNumber(raw_ostream &OS, int Slot) {
|
|
if (Slot == -1)
|
|
OS << "<badref>";
|
|
else
|
|
OS << Slot;
|
|
}
|
|
|
|
void MIPrinter::printIRBlockReference(const BasicBlock &BB) {
|
|
OS << "%ir-block.";
|
|
if (BB.hasName()) {
|
|
printLLVMNameWithoutPrefix(OS, BB.getName());
|
|
return;
|
|
}
|
|
const Function *F = BB.getParent();
|
|
int Slot;
|
|
if (F == MST.getCurrentFunction()) {
|
|
Slot = MST.getLocalSlot(&BB);
|
|
} else {
|
|
ModuleSlotTracker CustomMST(F->getParent(),
|
|
/*ShouldInitializeAllMetadata=*/false);
|
|
CustomMST.incorporateFunction(*F);
|
|
Slot = CustomMST.getLocalSlot(&BB);
|
|
}
|
|
printIRSlotNumber(OS, Slot);
|
|
}
|
|
|
|
void MIPrinter::printIRValueReference(const Value &V) {
|
|
if (isa<GlobalValue>(V)) {
|
|
V.printAsOperand(OS, /*PrintType=*/false, MST);
|
|
return;
|
|
}
|
|
if (isa<Constant>(V)) {
|
|
// Machine memory operands can load/store to/from constant value pointers.
|
|
OS << '`';
|
|
V.printAsOperand(OS, /*PrintType=*/true, MST);
|
|
OS << '`';
|
|
return;
|
|
}
|
|
OS << "%ir.";
|
|
if (V.hasName()) {
|
|
printLLVMNameWithoutPrefix(OS, V.getName());
|
|
return;
|
|
}
|
|
printIRSlotNumber(OS, MST.getLocalSlot(&V));
|
|
}
|
|
|
|
void MIPrinter::printStackObjectReference(int FrameIndex) {
|
|
auto ObjectInfo = StackObjectOperandMapping.find(FrameIndex);
|
|
assert(ObjectInfo != StackObjectOperandMapping.end() &&
|
|
"Invalid frame index");
|
|
const FrameIndexOperand &Operand = ObjectInfo->second;
|
|
if (Operand.IsFixed) {
|
|
OS << "%fixed-stack." << Operand.ID;
|
|
return;
|
|
}
|
|
OS << "%stack." << Operand.ID;
|
|
if (!Operand.Name.empty())
|
|
OS << '.' << Operand.Name;
|
|
}
|
|
|
|
void MIPrinter::printOffset(int64_t Offset) {
|
|
if (Offset == 0)
|
|
return;
|
|
if (Offset < 0) {
|
|
OS << " - " << -Offset;
|
|
return;
|
|
}
|
|
OS << " + " << Offset;
|
|
}
|
|
|
|
static const char *getTargetFlagName(const TargetInstrInfo *TII, unsigned TF) {
|
|
auto Flags = TII->getSerializableDirectMachineOperandTargetFlags();
|
|
for (const auto &I : Flags) {
|
|
if (I.first == TF) {
|
|
return I.second;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void MIPrinter::printTargetFlags(const MachineOperand &Op) {
|
|
if (!Op.getTargetFlags())
|
|
return;
|
|
const auto *TII =
|
|
Op.getParent()->getParent()->getParent()->getSubtarget().getInstrInfo();
|
|
assert(TII && "expected instruction info");
|
|
auto Flags = TII->decomposeMachineOperandsTargetFlags(Op.getTargetFlags());
|
|
OS << "target-flags(";
|
|
const bool HasDirectFlags = Flags.first;
|
|
const bool HasBitmaskFlags = Flags.second;
|
|
if (!HasDirectFlags && !HasBitmaskFlags) {
|
|
OS << "<unknown>) ";
|
|
return;
|
|
}
|
|
if (HasDirectFlags) {
|
|
if (const auto *Name = getTargetFlagName(TII, Flags.first))
|
|
OS << Name;
|
|
else
|
|
OS << "<unknown target flag>";
|
|
}
|
|
if (!HasBitmaskFlags) {
|
|
OS << ") ";
|
|
return;
|
|
}
|
|
bool IsCommaNeeded = HasDirectFlags;
|
|
unsigned BitMask = Flags.second;
|
|
auto BitMasks = TII->getSerializableBitmaskMachineOperandTargetFlags();
|
|
for (const auto &Mask : BitMasks) {
|
|
// Check if the flag's bitmask has the bits of the current mask set.
|
|
if ((BitMask & Mask.first) == Mask.first) {
|
|
if (IsCommaNeeded)
|
|
OS << ", ";
|
|
IsCommaNeeded = true;
|
|
OS << Mask.second;
|
|
// Clear the bits which were serialized from the flag's bitmask.
|
|
BitMask &= ~(Mask.first);
|
|
}
|
|
}
|
|
if (BitMask) {
|
|
// When the resulting flag's bitmask isn't zero, we know that we didn't
|
|
// serialize all of the bit flags.
|
|
if (IsCommaNeeded)
|
|
OS << ", ";
|
|
OS << "<unknown bitmask target flag>";
|
|
}
|
|
OS << ") ";
|
|
}
|
|
|
|
static const char *getTargetIndexName(const MachineFunction &MF, int Index) {
|
|
const auto *TII = MF.getSubtarget().getInstrInfo();
|
|
assert(TII && "expected instruction info");
|
|
auto Indices = TII->getSerializableTargetIndices();
|
|
for (const auto &I : Indices) {
|
|
if (I.first == Index) {
|
|
return I.second;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI,
|
|
unsigned I, bool ShouldPrintRegisterTies,
|
|
const MachineRegisterInfo *MRI, bool IsDef) {
|
|
printTargetFlags(Op);
|
|
switch (Op.getType()) {
|
|
case MachineOperand::MO_Register:
|
|
if (Op.isImplicit())
|
|
OS << (Op.isDef() ? "implicit-def " : "implicit ");
|
|
else if (!IsDef && Op.isDef())
|
|
// Print the 'def' flag only when the operand is defined after '='.
|
|
OS << "def ";
|
|
if (Op.isInternalRead())
|
|
OS << "internal ";
|
|
if (Op.isDead())
|
|
OS << "dead ";
|
|
if (Op.isKill())
|
|
OS << "killed ";
|
|
if (Op.isUndef())
|
|
OS << "undef ";
|
|
if (Op.isEarlyClobber())
|
|
OS << "early-clobber ";
|
|
if (Op.isDebug())
|
|
OS << "debug-use ";
|
|
printReg(Op.getReg(), OS, TRI);
|
|
// Print the sub register.
|
|
if (Op.getSubReg() != 0)
|
|
OS << ':' << TRI->getSubRegIndexName(Op.getSubReg());
|
|
if (ShouldPrintRegisterTies && Op.isTied() && !Op.isDef())
|
|
OS << "(tied-def " << Op.getParent()->findTiedOperandIdx(I) << ")";
|
|
assert((!IsDef || MRI) && "for IsDef, MRI must be provided");
|
|
if (IsDef && MRI->getSize(Op.getReg()))
|
|
OS << '(' << MRI->getSize(Op.getReg()) << ')';
|
|
break;
|
|
case MachineOperand::MO_Immediate:
|
|
OS << Op.getImm();
|
|
break;
|
|
case MachineOperand::MO_CImmediate:
|
|
Op.getCImm()->printAsOperand(OS, /*PrintType=*/true, MST);
|
|
break;
|
|
case MachineOperand::MO_FPImmediate:
|
|
Op.getFPImm()->printAsOperand(OS, /*PrintType=*/true, MST);
|
|
break;
|
|
case MachineOperand::MO_MachineBasicBlock:
|
|
printMBBReference(*Op.getMBB());
|
|
break;
|
|
case MachineOperand::MO_FrameIndex:
|
|
printStackObjectReference(Op.getIndex());
|
|
break;
|
|
case MachineOperand::MO_ConstantPoolIndex:
|
|
OS << "%const." << Op.getIndex();
|
|
printOffset(Op.getOffset());
|
|
break;
|
|
case MachineOperand::MO_TargetIndex: {
|
|
OS << "target-index(";
|
|
if (const auto *Name = getTargetIndexName(
|
|
*Op.getParent()->getParent()->getParent(), Op.getIndex()))
|
|
OS << Name;
|
|
else
|
|
OS << "<unknown>";
|
|
OS << ')';
|
|
printOffset(Op.getOffset());
|
|
break;
|
|
}
|
|
case MachineOperand::MO_JumpTableIndex:
|
|
OS << "%jump-table." << Op.getIndex();
|
|
break;
|
|
case MachineOperand::MO_ExternalSymbol:
|
|
OS << '$';
|
|
printLLVMNameWithoutPrefix(OS, Op.getSymbolName());
|
|
printOffset(Op.getOffset());
|
|
break;
|
|
case MachineOperand::MO_GlobalAddress:
|
|
Op.getGlobal()->printAsOperand(OS, /*PrintType=*/false, MST);
|
|
printOffset(Op.getOffset());
|
|
break;
|
|
case MachineOperand::MO_BlockAddress:
|
|
OS << "blockaddress(";
|
|
Op.getBlockAddress()->getFunction()->printAsOperand(OS, /*PrintType=*/false,
|
|
MST);
|
|
OS << ", ";
|
|
printIRBlockReference(*Op.getBlockAddress()->getBasicBlock());
|
|
OS << ')';
|
|
printOffset(Op.getOffset());
|
|
break;
|
|
case MachineOperand::MO_RegisterMask: {
|
|
auto RegMaskInfo = RegisterMaskIds.find(Op.getRegMask());
|
|
if (RegMaskInfo != RegisterMaskIds.end())
|
|
OS << StringRef(TRI->getRegMaskNames()[RegMaskInfo->second]).lower();
|
|
else
|
|
llvm_unreachable("Can't print this machine register mask yet.");
|
|
break;
|
|
}
|
|
case MachineOperand::MO_RegisterLiveOut: {
|
|
const uint32_t *RegMask = Op.getRegLiveOut();
|
|
OS << "liveout(";
|
|
bool IsCommaNeeded = false;
|
|
for (unsigned Reg = 0, E = TRI->getNumRegs(); Reg < E; ++Reg) {
|
|
if (RegMask[Reg / 32] & (1U << (Reg % 32))) {
|
|
if (IsCommaNeeded)
|
|
OS << ", ";
|
|
printReg(Reg, OS, TRI);
|
|
IsCommaNeeded = true;
|
|
}
|
|
}
|
|
OS << ")";
|
|
break;
|
|
}
|
|
case MachineOperand::MO_Metadata:
|
|
Op.getMetadata()->printAsOperand(OS, MST);
|
|
break;
|
|
case MachineOperand::MO_MCSymbol:
|
|
OS << "<mcsymbol " << *Op.getMCSymbol() << ">";
|
|
break;
|
|
case MachineOperand::MO_CFIIndex: {
|
|
const auto &MMI = Op.getParent()->getParent()->getParent()->getMMI();
|
|
print(MMI.getFrameInstructions()[Op.getCFIIndex()], TRI);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void MIPrinter::print(const MachineMemOperand &Op) {
|
|
OS << '(';
|
|
// TODO: Print operand's target specific flags.
|
|
if (Op.isVolatile())
|
|
OS << "volatile ";
|
|
if (Op.isNonTemporal())
|
|
OS << "non-temporal ";
|
|
if (Op.isInvariant())
|
|
OS << "invariant ";
|
|
if (Op.isLoad())
|
|
OS << "load ";
|
|
else {
|
|
assert(Op.isStore() && "Non load machine operand must be a store");
|
|
OS << "store ";
|
|
}
|
|
OS << Op.getSize() << (Op.isLoad() ? " from " : " into ");
|
|
if (const Value *Val = Op.getValue()) {
|
|
printIRValueReference(*Val);
|
|
} else {
|
|
const PseudoSourceValue *PVal = Op.getPseudoValue();
|
|
assert(PVal && "Expected a pseudo source value");
|
|
switch (PVal->kind()) {
|
|
case PseudoSourceValue::Stack:
|
|
OS << "stack";
|
|
break;
|
|
case PseudoSourceValue::GOT:
|
|
OS << "got";
|
|
break;
|
|
case PseudoSourceValue::JumpTable:
|
|
OS << "jump-table";
|
|
break;
|
|
case PseudoSourceValue::ConstantPool:
|
|
OS << "constant-pool";
|
|
break;
|
|
case PseudoSourceValue::FixedStack:
|
|
printStackObjectReference(
|
|
cast<FixedStackPseudoSourceValue>(PVal)->getFrameIndex());
|
|
break;
|
|
case PseudoSourceValue::GlobalValueCallEntry:
|
|
OS << "call-entry ";
|
|
cast<GlobalValuePseudoSourceValue>(PVal)->getValue()->printAsOperand(
|
|
OS, /*PrintType=*/false, MST);
|
|
break;
|
|
case PseudoSourceValue::ExternalSymbolCallEntry:
|
|
OS << "call-entry $";
|
|
printLLVMNameWithoutPrefix(
|
|
OS, cast<ExternalSymbolPseudoSourceValue>(PVal)->getSymbol());
|
|
break;
|
|
}
|
|
}
|
|
printOffset(Op.getOffset());
|
|
if (Op.getBaseAlignment() != Op.getSize())
|
|
OS << ", align " << Op.getBaseAlignment();
|
|
auto AAInfo = Op.getAAInfo();
|
|
if (AAInfo.TBAA) {
|
|
OS << ", !tbaa ";
|
|
AAInfo.TBAA->printAsOperand(OS, MST);
|
|
}
|
|
if (AAInfo.Scope) {
|
|
OS << ", !alias.scope ";
|
|
AAInfo.Scope->printAsOperand(OS, MST);
|
|
}
|
|
if (AAInfo.NoAlias) {
|
|
OS << ", !noalias ";
|
|
AAInfo.NoAlias->printAsOperand(OS, MST);
|
|
}
|
|
if (Op.getRanges()) {
|
|
OS << ", !range ";
|
|
Op.getRanges()->printAsOperand(OS, MST);
|
|
}
|
|
OS << ')';
|
|
}
|
|
|
|
static void printCFIRegister(unsigned DwarfReg, raw_ostream &OS,
|
|
const TargetRegisterInfo *TRI) {
|
|
int Reg = TRI->getLLVMRegNum(DwarfReg, true);
|
|
if (Reg == -1) {
|
|
OS << "<badreg>";
|
|
return;
|
|
}
|
|
printReg(Reg, OS, TRI);
|
|
}
|
|
|
|
void MIPrinter::print(const MCCFIInstruction &CFI,
|
|
const TargetRegisterInfo *TRI) {
|
|
switch (CFI.getOperation()) {
|
|
case MCCFIInstruction::OpSameValue:
|
|
OS << ".cfi_same_value ";
|
|
if (CFI.getLabel())
|
|
OS << "<mcsymbol> ";
|
|
printCFIRegister(CFI.getRegister(), OS, TRI);
|
|
break;
|
|
case MCCFIInstruction::OpOffset:
|
|
OS << ".cfi_offset ";
|
|
if (CFI.getLabel())
|
|
OS << "<mcsymbol> ";
|
|
printCFIRegister(CFI.getRegister(), OS, TRI);
|
|
OS << ", " << CFI.getOffset();
|
|
break;
|
|
case MCCFIInstruction::OpDefCfaRegister:
|
|
OS << ".cfi_def_cfa_register ";
|
|
if (CFI.getLabel())
|
|
OS << "<mcsymbol> ";
|
|
printCFIRegister(CFI.getRegister(), OS, TRI);
|
|
break;
|
|
case MCCFIInstruction::OpDefCfaOffset:
|
|
OS << ".cfi_def_cfa_offset ";
|
|
if (CFI.getLabel())
|
|
OS << "<mcsymbol> ";
|
|
OS << CFI.getOffset();
|
|
break;
|
|
case MCCFIInstruction::OpDefCfa:
|
|
OS << ".cfi_def_cfa ";
|
|
if (CFI.getLabel())
|
|
OS << "<mcsymbol> ";
|
|
printCFIRegister(CFI.getRegister(), OS, TRI);
|
|
OS << ", " << CFI.getOffset();
|
|
break;
|
|
default:
|
|
// TODO: Print the other CFI Operations.
|
|
OS << "<unserializable cfi operation>";
|
|
break;
|
|
}
|
|
}
|
|
|
|
void llvm::printMIR(raw_ostream &OS, const Module &M) {
|
|
yaml::Output Out(OS);
|
|
Out << const_cast<Module &>(M);
|
|
}
|
|
|
|
void llvm::printMIR(raw_ostream &OS, const MachineFunction &MF) {
|
|
MIRPrinter Printer(OS);
|
|
Printer.print(MF);
|
|
}
|