#ifndef LLVM_TARGET_TARGETMACHINE_H
#define LLVM_TARGET_TARGETMACHINE_H
+#include "llvm/ADT/StringRef.h"
#include "llvm/Pass.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Target/TargetOptions.h"
-#include "llvm/ADT/StringRef.h"
#include <cassert>
#include <string>
class InstrItineraryData;
class JITCodeEmitter;
class GlobalValue;
+class Mangler;
class MCAsmInfo;
class MCCodeGenInfo;
class MCContext;
-class PassManagerBase;
+class MCSymbol;
class Target;
-class TargetData;
-class TargetELFWriterInfo;
+class DataLayout;
+class TargetLibraryInfo;
class TargetFrameLowering;
class TargetInstrInfo;
class TargetIntrinsicInfo;
class TargetRegisterInfo;
class TargetSelectionDAGInfo;
class TargetSubtargetInfo;
+class ScalarTargetTransformInfo;
+class VectorTargetTransformInfo;
class formatted_raw_ostream;
class raw_ostream;
+// The old pass manager infrastructure is hidden in a legacy namespace now.
+namespace legacy {
+class PassManagerBase;
+}
+using legacy::PassManagerBase;
+
//===----------------------------------------------------------------------===//
///
/// TargetMachine - Primary interface to the complete machine description for
/// through this interface.
///
class TargetMachine {
- TargetMachine(const TargetMachine &); // DO NOT IMPLEMENT
- void operator=(const TargetMachine &); // DO NOT IMPLEMENT
+ TargetMachine(const TargetMachine &) LLVM_DELETED_FUNCTION;
+ void operator=(const TargetMachine &) LLVM_DELETED_FUNCTION;
protected: // Can only create subclasses.
TargetMachine(const Target &T, StringRef TargetTriple,
StringRef CPU, StringRef FS, const TargetOptions &Options);
- /// getSubtargetImpl - virtual method implemented by subclasses that returns
- /// a reference to that target's TargetSubtargetInfo-derived member variable.
- virtual const TargetSubtargetInfo *getSubtargetImpl() const { return 0; }
-
/// TheTarget - The Target that this machine was created for.
const Target &TheTarget;
std::string TargetFS;
/// CodeGenInfo - Low level target information such as relocation model.
- const MCCodeGenInfo *CodeGenInfo;
+ /// Non-const to allow resetting optimization level per-function.
+ MCCodeGenInfo *CodeGenInfo;
/// AsmInfo - Contains target specific asm information.
///
unsigned MCRelaxAll : 1;
unsigned MCNoExecStack : 1;
unsigned MCSaveTempLabels : 1;
- unsigned MCUseLoc : 1;
unsigned MCUseCFI : 1;
unsigned MCUseDwarfDirectory : 1;
+ unsigned RequireStructuredCFG : 1;
public:
virtual ~TargetMachine();
const StringRef getTargetCPU() const { return TargetCPU; }
const StringRef getTargetFeatureString() const { return TargetFS; }
- TargetOptions Options;
+ /// getSubtargetImpl - virtual method implemented by subclasses that returns
+ /// a reference to that target's TargetSubtargetInfo-derived member variable.
+ virtual const TargetSubtargetInfo *getSubtargetImpl() const { return 0; }
+
+ mutable TargetOptions Options;
+
+ /// \brief Reset the target options based on the function's attributes.
+ void resetTargetOptions(const MachineFunction *MF) const;
// Interfaces to the major aspects of target machine information:
+ //
// -- Instruction opcode and operand information
// -- Pipelines and scheduling information
// -- Stack frame information
// -- Selection DAG lowering information
//
+ // N.B. These objects may change during compilation. It's not safe to cache
+ // them between functions.
virtual const TargetInstrInfo *getInstrInfo() const { return 0; }
virtual const TargetFrameLowering *getFrameLowering() const { return 0; }
virtual const TargetLowering *getTargetLowering() const { return 0; }
virtual const TargetSelectionDAGInfo *getSelectionDAGInfo() const{ return 0; }
- virtual const TargetData *getTargetData() const { return 0; }
+ virtual const DataLayout *getDataLayout() const { return 0; }
/// getMCAsmInfo - Return target specific asm information.
///
return 0;
}
- /// getELFWriterInfo - If this target supports an ELF writer, return
- /// information for it, otherwise return null.
- ///
- virtual const TargetELFWriterInfo *getELFWriterInfo() const { return 0; }
+ bool requiresStructuredCFG() const { return RequireStructuredCFG; }
+ void setRequiresStructuredCFG(bool Value) { RequireStructuredCFG = Value; }
/// hasMCRelaxAll - Check whether all machine code instructions should be
/// relaxed.
/// setMCNoExecStack - Set whether an executabel stack is not needed.
void setMCNoExecStack(bool Value) { MCNoExecStack = Value; }
- /// hasMCUseLoc - Check whether we should use dwarf's .loc directive.
- bool hasMCUseLoc() const { return MCUseLoc; }
-
- /// setMCUseLoc - Set whether all we should use dwarf's .loc directive.
- void setMCUseLoc(bool Value) { MCUseLoc = Value; }
-
/// hasMCUseCFI - Check whether we should use dwarf's .cfi_* directives.
bool hasMCUseCFI() const { return MCUseCFI; }
/// Default, or Aggressive.
CodeGenOpt::Level getOptLevel() const;
+ /// \brief Overrides the optimization level.
+ void setOptLevel(CodeGenOpt::Level Level) const;
+
void setFastISel(bool Enable) { Options.EnableFastISel = Enable; }
bool shouldPrintMachineCode() const { return Options.PrintMachineCode; }
/// sections.
static void setFunctionSections(bool);
+ /// \brief Register analysis passes for this target with a pass manager.
+ virtual void addAnalysisPasses(PassManagerBase &) {}
+
/// CodeGenFileType - These enums are meant to be passed into
/// addPassesToEmitFile to indicate what type of file to emit, and returned by
/// it to indicate what type of file could actually be made.
formatted_raw_ostream &,
CodeGenFileType,
bool /*DisableVerify*/ = true,
- AnalysisID StartAfter = 0,
- AnalysisID StopAfter = 0) {
+ AnalysisID /*StartAfter*/ = 0,
+ AnalysisID /*StopAfter*/ = 0) {
return true;
}
bool /*DisableVerify*/ = true) {
return true;
}
+
+ void getNameWithPrefix(SmallVectorImpl<char> &Name, const GlobalValue *GV,
+ Mangler &Mang, bool MayAlwaysUsePrivate = false) const;
+ MCSymbol *getSymbol(const GlobalValue *GV, Mangler &Mang) const;
};
/// LLVMTargetMachine - This class describes a target machine that is
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL);
+ void initAsmInfo();
public:
+ /// \brief Register analysis passes for this target with a pass manager.
+ ///
+ /// This registers target independent analysis passes.
+ void addAnalysisPasses(PassManagerBase &PM) override;
+
/// createPassConfig - Create a pass configuration object to be used by
/// addPassToEmitX methods for generating a pipeline of CodeGen passes.
virtual TargetPassConfig *createPassConfig(PassManagerBase &PM);
/// addPassesToEmitFile - Add passes to the specified pass manager to get the
/// specified file emitted. Typically this will involve several steps of code
/// generation.
- virtual bool addPassesToEmitFile(PassManagerBase &PM,
- formatted_raw_ostream &Out,
- CodeGenFileType FileType,
- bool DisableVerify = true,
- AnalysisID StartAfter = 0,
- AnalysisID StopAfter = 0);
+ bool addPassesToEmitFile(PassManagerBase &PM, formatted_raw_ostream &Out,
+ CodeGenFileType FileType, bool DisableVerify = true,
+ AnalysisID StartAfter = 0,
+ AnalysisID StopAfter = 0) override;
/// addPassesToEmitMachineCode - Add passes to the specified pass manager to
/// get machine code emitted. This uses a JITCodeEmitter object to handle
/// of functions. This method returns true if machine code emission is
/// not supported.
///
- virtual bool addPassesToEmitMachineCode(PassManagerBase &PM,
- JITCodeEmitter &MCE,
- bool DisableVerify = true);
+ bool addPassesToEmitMachineCode(PassManagerBase &PM, JITCodeEmitter &MCE,
+ bool DisableVerify = true) override;
/// addPassesToEmitMC - Add passes to the specified pass manager to get
/// machine code emitted with the MCJIT. This method returns true if machine
/// code is not supported. It fills the MCContext Ctx pointer which can be
/// used to build custom MCStreamer.
///
- virtual bool addPassesToEmitMC(PassManagerBase &PM,
- MCContext *&Ctx,
- raw_ostream &OS,
- bool DisableVerify = true);
+ bool addPassesToEmitMC(PassManagerBase &PM, MCContext *&Ctx,
+ raw_ostream &OS, bool DisableVerify = true) override;
/// addCodeEmitter - This pass should be overridden by the target to add a
/// code emitter, if supported. If this is not supported, 'true' should be
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