//===----------------------------------------------------------------------===//
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Analysis/JumpInstrTableInfo.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
-#include "llvm/CodeGen/ForwardControlFlowIntegrity.h"
-#include "llvm/CodeGen/JumpInstrTables.h"
#include "llvm/CodeGen/MachineFunctionAnalysis.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/IRPrintingPasses.h"
+#include "llvm/IR/LegacyPassManager.h"
#include "llvm/IR/Verifier.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/PassManager.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetOptions.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Target/TargetSubtargetInfo.h"
#include "llvm/Transforms/Scalar.h"
using namespace llvm;
cl::desc("Enable the \"fast\" instruction selector"));
void LLVMTargetMachine::initAsmInfo() {
- MCAsmInfo *TmpAsmInfo = TheTarget.createMCAsmInfo(
- *getSubtargetImpl()->getRegisterInfo(), getTargetTriple());
+ MRI = TheTarget.createMCRegInfo(getTargetTriple().str());
+ MII = TheTarget.createMCInstrInfo();
+ // FIXME: Having an MCSubtargetInfo on the target machine is a hack due
+ // to some backends having subtarget feature dependent module level
+ // code generation. This is similar to the hack in the AsmPrinter for
+ // module level assembly etc.
+ STI = TheTarget.createMCSubtargetInfo(getTargetTriple().str(), getTargetCPU(),
+ getTargetFeatureString());
+
+ MCAsmInfo *TmpAsmInfo =
+ TheTarget.createMCAsmInfo(*MRI, getTargetTriple().str());
// TargetSelect.h moved to a different directory between LLVM 2.9 and 3.0,
// and if the old one gets included then MCAsmInfo will be NULL and
// we'll crash later.
AsmInfo = TmpAsmInfo;
}
-LLVMTargetMachine::LLVMTargetMachine(const Target &T, StringRef Triple,
- StringRef CPU, StringRef FS,
- TargetOptions Options,
+LLVMTargetMachine::LLVMTargetMachine(const Target &T,
+ StringRef DataLayoutString,
+ const Triple &TT, StringRef CPU,
+ StringRef FS, TargetOptions Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL)
- : TargetMachine(T, Triple, CPU, FS, Options) {
- CodeGenInfo = T.createMCCodeGenInfo(Triple, RM, CM, OL);
+ : TargetMachine(T, DataLayoutString, TT, CPU, FS, Options) {
+ CodeGenInfo = T.createMCCodeGenInfo(TT.str(), RM, CM, OL);
}
TargetIRAnalysis LLVMTargetMachine::getTargetIRAnalysis() {
- return TargetIRAnalysis([this](Function &F) {
+ return TargetIRAnalysis([this](const Function &F) {
return TargetTransformInfo(BasicTTIImpl(this, F));
});
}
/// addPassesToX helper drives creation and initialization of TargetPassConfig.
-static MCContext *addPassesToGenerateCode(LLVMTargetMachine *TM,
- PassManagerBase &PM,
- bool DisableVerify,
- AnalysisID StartAfter,
- AnalysisID StopAfter) {
+static MCContext *
+addPassesToGenerateCode(LLVMTargetMachine *TM, PassManagerBase &PM,
+ bool DisableVerify, AnalysisID StartBefore,
+ AnalysisID StartAfter, AnalysisID StopAfter,
+ MachineFunctionInitializer *MFInitializer = nullptr) {
// Add internal analysis passes from the target machine.
PM.add(createTargetTransformInfoWrapperPass(TM->getTargetIRAnalysis()));
// Targets may override createPassConfig to provide a target-specific
// subclass.
TargetPassConfig *PassConfig = TM->createPassConfig(PM);
- PassConfig->setStartStopPasses(StartAfter, StopAfter);
+ PassConfig->setStartStopPasses(StartBefore, StartAfter, StopAfter);
// Set PassConfig options provided by TargetMachine.
PassConfig->setDisableVerify(DisableVerify);
// Install a MachineModuleInfo class, which is an immutable pass that holds
// all the per-module stuff we're generating, including MCContext.
MachineModuleInfo *MMI = new MachineModuleInfo(
- *TM->getMCAsmInfo(), *TM->getSubtargetImpl()->getRegisterInfo(),
- TM->getObjFileLowering());
+ *TM->getMCAsmInfo(), *TM->getMCRegisterInfo(), TM->getObjFileLowering());
PM.add(MMI);
// Set up a MachineFunction for the rest of CodeGen to work on.
- PM.add(new MachineFunctionAnalysis(*TM));
+ PM.add(new MachineFunctionAnalysis(*TM, MFInitializer));
// Enable FastISel with -fast, but allow that to be overridden.
+ TM->setO0WantsFastISel(EnableFastISelOption != cl::BOU_FALSE);
if (EnableFastISelOption == cl::BOU_TRUE ||
(TM->getOptLevel() == CodeGenOpt::None &&
- EnableFastISelOption != cl::BOU_FALSE))
+ TM->getO0WantsFastISel()))
TM->setFastISel(true);
// Ask the target for an isel.
return &MMI->getContext();
}
-bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
- formatted_raw_ostream &Out,
- CodeGenFileType FileType,
- bool DisableVerify,
- AnalysisID StartAfter,
- AnalysisID StopAfter) {
- // Passes to handle jumptable function annotations. These can't be handled at
- // JIT time, so we don't add them directly to addPassesToGenerateCode.
- PM.add(createJumpInstrTableInfoPass(
- getSubtargetImpl()->getInstrInfo()->getJumpInstrTableEntryBound()));
- PM.add(createJumpInstrTablesPass(Options.JTType));
- if (Options.FCFI)
- PM.add(createForwardControlFlowIntegrityPass(
- Options.JTType, Options.CFIType, Options.CFIEnforcing,
- Options.getCFIFuncName()));
-
+bool LLVMTargetMachine::addPassesToEmitFile(
+ PassManagerBase &PM, raw_pwrite_stream &Out, CodeGenFileType FileType,
+ bool DisableVerify, AnalysisID StartBefore, AnalysisID StartAfter,
+ AnalysisID StopAfter, MachineFunctionInitializer *MFInitializer) {
// Add common CodeGen passes.
- MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify,
- StartAfter, StopAfter);
+ MCContext *Context =
+ addPassesToGenerateCode(this, PM, DisableVerify, StartBefore, StartAfter,
+ StopAfter, MFInitializer);
if (!Context)
return true;
if (StopAfter) {
- // FIXME: The intent is that this should eventually write out a YAML file,
- // containing the LLVM IR, the machine-level IR (when stopping after a
- // machine-level pass), and whatever other information is needed to
- // deserialize the code and resume compilation. For now, just write the
- // LLVM IR.
- PM.add(createPrintModulePass(Out));
+ PM.add(createPrintMIRPass(outs()));
return false;
}
if (Options.MCOptions.MCSaveTempLabels)
Context->setAllowTemporaryLabels(false);
- const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
+ const MCSubtargetInfo &STI = *getMCSubtargetInfo();
const MCAsmInfo &MAI = *getMCAsmInfo();
- const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo();
- const MCInstrInfo &MII = *getSubtargetImpl()->getInstrInfo();
+ const MCRegisterInfo &MRI = *getMCRegisterInfo();
+ const MCInstrInfo &MII = *getMCInstrInfo();
+
std::unique_ptr<MCStreamer> AsmStreamer;
switch (FileType) {
case CGFT_AssemblyFile: {
- MCInstPrinter *InstPrinter =
- getTarget().createMCInstPrinter(MAI.getAssemblerDialect(), MAI,
- MII, MRI, STI);
+ MCInstPrinter *InstPrinter = getTarget().createMCInstPrinter(
+ getTargetTriple(), MAI.getAssemblerDialect(), MAI, MII, MRI);
// Create a code emitter if asked to show the encoding.
MCCodeEmitter *MCE = nullptr;
if (Options.MCOptions.ShowMCEncoding)
- MCE = getTarget().createMCCodeEmitter(MII, MRI, STI, *Context);
+ MCE = getTarget().createMCCodeEmitter(MII, MRI, *Context);
- MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(),
- TargetCPU);
+ MCAsmBackend *MAB =
+ getTarget().createMCAsmBackend(MRI, getTargetTriple().str(), TargetCPU);
+ auto FOut = llvm::make_unique<formatted_raw_ostream>(Out);
MCStreamer *S = getTarget().createAsmStreamer(
- *Context, Out, Options.MCOptions.AsmVerbose,
+ *Context, std::move(FOut), Options.MCOptions.AsmVerbose,
Options.MCOptions.MCUseDwarfDirectory, InstPrinter, MCE, MAB,
Options.MCOptions.ShowMCInst);
AsmStreamer.reset(S);
case CGFT_ObjectFile: {
// Create the code emitter for the target if it exists. If not, .o file
// emission fails.
- MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(MII, MRI, STI,
- *Context);
- MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(),
- TargetCPU);
+ MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(MII, MRI, *Context);
+ MCAsmBackend *MAB =
+ getTarget().createMCAsmBackend(MRI, getTargetTriple().str(), TargetCPU);
if (!MCE || !MAB)
return true;
- AsmStreamer.reset(
- getTarget()
- .createMCObjectStreamer(getTargetTriple(), *Context, *MAB, Out, MCE,
- STI, Options.MCOptions.MCRelaxAll));
+ // Don't waste memory on names of temp labels.
+ Context->setUseNamesOnTempLabels(false);
+
+ Triple T(getTargetTriple().str());
+ AsmStreamer.reset(getTarget().createMCObjectStreamer(
+ T, *Context, *MAB, Out, MCE, STI, Options.MCOptions.MCRelaxAll,
+ Options.MCOptions.MCIncrementalLinkerCompatible,
+ /*DWARFMustBeAtTheEnd*/ true));
break;
}
case CGFT_Null:
/// code is not supported. It fills the MCContext Ctx pointer which can be
/// used to build custom MCStreamer.
///
-bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM,
- MCContext *&Ctx,
- raw_ostream &Out,
+bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM, MCContext *&Ctx,
+ raw_pwrite_stream &Out,
bool DisableVerify) {
// Add common CodeGen passes.
- Ctx = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, nullptr);
+ Ctx = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, nullptr,
+ nullptr);
if (!Ctx)
return true;
// Create the code emitter for the target if it exists. If not, .o file
// emission fails.
- const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo();
- const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
- MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(
- *getSubtargetImpl()->getInstrInfo(), MRI, STI, *Ctx);
- MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(),
- TargetCPU);
+ const MCRegisterInfo &MRI = *getMCRegisterInfo();
+ MCCodeEmitter *MCE =
+ getTarget().createMCCodeEmitter(*getMCInstrInfo(), MRI, *Ctx);
+ MCAsmBackend *MAB =
+ getTarget().createMCAsmBackend(MRI, getTargetTriple().str(), TargetCPU);
if (!MCE || !MAB)
return true;
+ const Triple &T = getTargetTriple();
+ const MCSubtargetInfo &STI = *getMCSubtargetInfo();
std::unique_ptr<MCStreamer> AsmStreamer(getTarget().createMCObjectStreamer(
- getTargetTriple(), *Ctx, *MAB, Out, MCE, STI,
- Options.MCOptions.MCRelaxAll));
+ T, *Ctx, *MAB, Out, MCE, STI, Options.MCOptions.MCRelaxAll,
+ Options.MCOptions.MCIncrementalLinkerCompatible,
+ /*DWARFMustBeAtTheEnd*/ true));
// Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
FunctionPass *Printer =
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