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 StackMaps SM; 29 30 SystemZTargetStreamer *getTargetStreamer() { 31 MCTargetStreamer *TS = OutStreamer->getTargetStreamer(); 32 assert(TS && "do not have a target streamer"); 33 return static_cast<SystemZTargetStreamer *>(TS); 34 } 35 36 /// Call type information for XPLINK. 37 enum class CallType { 38 BASR76 = 0, // b'x000' == BASR r7,r6 39 BRAS7 = 1, // b'x001' == BRAS r7,ep 40 RESVD_2 = 2, // b'x010' 41 BRASL7 = 3, // b'x011' == BRASL r7,ep 42 RESVD_4 = 4, // b'x100' 43 RESVD_5 = 5, // b'x101' 44 BALR1415 = 6, // b'x110' == BALR r14,r15 45 BASR33 = 7, // b'x111' == BASR r3,r3 46 }; 47 48 public: 49 SystemZAsmPrinter(TargetMachine &TM, std::unique_ptr<MCStreamer> Streamer) 50 : AsmPrinter(TM, std::move(Streamer)), SM(*this) {} 51 52 // Override AsmPrinter. 53 StringRef getPassName() const override { return "SystemZ Assembly Printer"; } 54 void emitInstruction(const MachineInstr *MI) override; 55 void emitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) override; 56 void emitEndOfAsmFile(Module &M) override; 57 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, 58 const char *ExtraCode, raw_ostream &OS) override; 59 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo, 60 const char *ExtraCode, raw_ostream &OS) override; 61 62 bool doInitialization(Module &M) override { 63 SM.reset(); 64 return AsmPrinter::doInitialization(M); 65 } 66 void emitFunctionEntryLabel() override; 67 68 private: 69 void emitCallInformation(CallType CT); 70 void LowerFENTRY_CALL(const MachineInstr &MI, SystemZMCInstLower &MCIL); 71 void LowerSTACKMAP(const MachineInstr &MI); 72 void LowerPATCHPOINT(const MachineInstr &MI, SystemZMCInstLower &Lower); 73 }; 74 } // end namespace llvm 75 76 #endif 77