1 //===-- SystemZAsmPrinter.h - SystemZ LLVM assembly printer ----*- C++ -*--===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZASMPRINTER_H 10 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZASMPRINTER_H 11 12 #include "SystemZMCInstLower.h" 13 #include "SystemZTargetMachine.h" 14 #include "SystemZTargetStreamer.h" 15 #include "llvm/CodeGen/AsmPrinter.h" 16 #include "llvm/CodeGen/StackMaps.h" 17 #include "llvm/MC/MCInstBuilder.h" 18 #include "llvm/Support/Compiler.h" 19 20 namespace llvm { 21 class MCStreamer; 22 class MachineInstr; 23 class Module; 24 class raw_ostream; 25 26 class LLVM_LIBRARY_VISIBILITY SystemZAsmPrinter : public AsmPrinter { 27 private: 28 MCSymbol *CurrentFnPPA1Sym; // PPA1 Symbol. 29 MCSymbol *CurrentFnEPMarkerSym; // Entry Point Marker. 30 31 SystemZTargetStreamer *getTargetStreamer() { 32 MCTargetStreamer *TS = OutStreamer->getTargetStreamer(); 33 assert(TS && "do not have a target streamer"); 34 return static_cast<SystemZTargetStreamer *>(TS); 35 } 36 37 /// Call type information for XPLINK. 38 enum class CallType { 39 BASR76 = 0, // b'x000' == BASR r7,r6 40 BRAS7 = 1, // b'x001' == BRAS r7,ep 41 RESVD_2 = 2, // b'x010' 42 BRASL7 = 3, // b'x011' == BRASL r7,ep 43 RESVD_4 = 4, // b'x100' 44 RESVD_5 = 5, // b'x101' 45 BALR1415 = 6, // b'x110' == BALR r14,r15 46 BASR33 = 7, // b'x111' == BASR r3,r3 47 }; 48 49 void emitPPA1(MCSymbol *FnEndSym); 50 51 public: 52 SystemZAsmPrinter(TargetMachine &TM, std::unique_ptr<MCStreamer> Streamer) 53 : AsmPrinter(TM, std::move(Streamer)), CurrentFnPPA1Sym(nullptr), 54 CurrentFnEPMarkerSym(nullptr) {} 55 56 // Override AsmPrinter. 57 StringRef getPassName() const override { return "SystemZ Assembly Printer"; } 58 void emitInstruction(const MachineInstr *MI) override; 59 void emitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) override; 60 void emitEndOfAsmFile(Module &M) override; 61 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, 62 const char *ExtraCode, raw_ostream &OS) override; 63 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo, 64 const char *ExtraCode, raw_ostream &OS) override; 65 66 bool doInitialization(Module &M) override { 67 SM.reset(); 68 return AsmPrinter::doInitialization(M); 69 } 70 void emitFunctionEntryLabel() override; 71 void emitFunctionBodyEnd() override; 72 73 private: 74 void emitCallInformation(CallType CT); 75 void LowerFENTRY_CALL(const MachineInstr &MI, SystemZMCInstLower &MCIL); 76 void LowerSTACKMAP(const MachineInstr &MI); 77 void LowerPATCHPOINT(const MachineInstr &MI, SystemZMCInstLower &Lower); 78 void emitAttributes(Module &M); 79 }; 80 } // end namespace llvm 81 82 #endif 83