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//===-- SystemZAsmPrinter.h - SystemZ LLVM assembly printer ----*- C++ -*--===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZASMPRINTER_H
#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZASMPRINTER_H
#include "SystemZMCInstLower.h"
#include "SystemZTargetMachine.h"
#include "SystemZTargetStreamer.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/StackMaps.h"
#include "llvm/MC/MCInstBuilder.h"
#include "llvm/Support/Compiler.h"
namespace llvm {
class MCStreamer;
class MachineInstr;
class Module;
class raw_ostream;
class LLVM_LIBRARY_VISIBILITY SystemZAsmPrinter : public AsmPrinter {
private:
MCSymbol *CurrentFnPPA1Sym; // PPA1 Symbol.
MCSymbol *CurrentFnEPMarkerSym; // Entry Point Marker.
SystemZTargetStreamer *getTargetStreamer() {
MCTargetStreamer *TS = OutStreamer->getTargetStreamer();
assert(TS && "do not have a target streamer");
return static_cast<SystemZTargetStreamer *>(TS);
}
/// Call type information for XPLINK.
enum class CallType {
BASR76 = 0, // b'x000' == BASR r7,r6
BRAS7 = 1, // b'x001' == BRAS r7,ep
RESVD_2 = 2, // b'x010'
BRASL7 = 3, // b'x011' == BRASL r7,ep
RESVD_4 = 4, // b'x100'
RESVD_5 = 5, // b'x101'
BALR1415 = 6, // b'x110' == BALR r14,r15
BASR33 = 7, // b'x111' == BASR r3,r3
};
void emitPPA1(MCSymbol *FnEndSym);
public:
SystemZAsmPrinter(TargetMachine &TM, std::unique_ptr<MCStreamer> Streamer)
: AsmPrinter(TM, std::move(Streamer)), CurrentFnPPA1Sym(nullptr),
CurrentFnEPMarkerSym(nullptr) {}
// Override AsmPrinter.
StringRef getPassName() const override { return "SystemZ Assembly Printer"; }
void emitInstruction(const MachineInstr *MI) override;
void emitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) override;
void emitEndOfAsmFile(Module &M) override;
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
const char *ExtraCode, raw_ostream &OS) override;
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
const char *ExtraCode, raw_ostream &OS) override;
bool doInitialization(Module &M) override {
SM.reset();
return AsmPrinter::doInitialization(M);
}
void emitFunctionEntryLabel() override;
void emitFunctionBodyEnd() override;
private:
void emitCallInformation(CallType CT);
void LowerFENTRY_CALL(const MachineInstr &MI, SystemZMCInstLower &MCIL);
void LowerSTACKMAP(const MachineInstr &MI);
void LowerPATCHPOINT(const MachineInstr &MI, SystemZMCInstLower &Lower);
void emitAttributes(Module &M);
};
} // end namespace llvm
#endif
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