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1//==- SystemZ.h - Top-Level Interface for SystemZ representation -*- 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-exception6//7//===----------------------------------------------------------------------===//8//9// This file contains the entry points for global functions defined in10// the LLVM SystemZ backend.11//12//===----------------------------------------------------------------------===//13 14#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H15#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H16 17#include "MCTargetDesc/SystemZMCTargetDesc.h"18#include "llvm/Support/CodeGen.h"19 20namespace llvm {21class FunctionPass;22class PassRegistry;23class SystemZTargetMachine;24 25namespace SystemZ {26// Condition-code mask values.27const unsigned CCMASK_NONE = 0;28const unsigned CCMASK_0 = 1 << 3;29const unsigned CCMASK_1 = 1 << 2;30const unsigned CCMASK_2 = 1 << 1;31const unsigned CCMASK_3 = 1 << 0;32const unsigned CCMASK_ANY = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3;33 34// Condition-code mask assignments for integer and floating-point35// comparisons.36const unsigned CCMASK_CMP_EQ = CCMASK_0;37const unsigned CCMASK_CMP_LT = CCMASK_1;38const unsigned CCMASK_CMP_GT = CCMASK_2;39const unsigned CCMASK_CMP_NE = CCMASK_CMP_LT | CCMASK_CMP_GT;40const unsigned CCMASK_CMP_LE = CCMASK_CMP_EQ | CCMASK_CMP_LT;41const unsigned CCMASK_CMP_GE = CCMASK_CMP_EQ | CCMASK_CMP_GT;42 43// Condition-code mask assignments for floating-point comparisons only.44const unsigned CCMASK_CMP_UO = CCMASK_3;45const unsigned CCMASK_CMP_O = CCMASK_ANY ^ CCMASK_CMP_UO;46 47// All condition-code values produced by comparisons.48const unsigned CCMASK_ICMP = CCMASK_0 | CCMASK_1 | CCMASK_2;49const unsigned CCMASK_FCMP = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3;50 51// Condition-code mask assignments for arithmetical operations.52const unsigned CCMASK_ARITH_EQ = CCMASK_0;53const unsigned CCMASK_ARITH_LT = CCMASK_1;54const unsigned CCMASK_ARITH_GT = CCMASK_2;55const unsigned CCMASK_ARITH_OVERFLOW = CCMASK_3;56const unsigned CCMASK_ARITH = CCMASK_ANY;57 58// Condition-code mask assignments for logical operations.59const unsigned CCMASK_LOGICAL_ZERO = CCMASK_0 | CCMASK_2;60const unsigned CCMASK_LOGICAL_NONZERO = CCMASK_1 | CCMASK_3;61const unsigned CCMASK_LOGICAL_CARRY = CCMASK_2 | CCMASK_3;62const unsigned CCMASK_LOGICAL_NOCARRY = CCMASK_0 | CCMASK_1;63const unsigned CCMASK_LOGICAL_BORROW = CCMASK_LOGICAL_NOCARRY;64const unsigned CCMASK_LOGICAL_NOBORROW = CCMASK_LOGICAL_CARRY;65const unsigned CCMASK_LOGICAL = CCMASK_ANY;66 67// Condition-code mask assignments for CS.68const unsigned CCMASK_CS_EQ = CCMASK_0;69const unsigned CCMASK_CS_NE = CCMASK_1;70const unsigned CCMASK_CS = CCMASK_0 | CCMASK_1;71 72// Condition-code mask assignments for a completed SRST loop.73const unsigned CCMASK_SRST_FOUND = CCMASK_1;74const unsigned CCMASK_SRST_NOTFOUND = CCMASK_2;75const unsigned CCMASK_SRST = CCMASK_1 | CCMASK_2;76 77// Condition-code mask assignments for TEST UNDER MASK.78const unsigned CCMASK_TM_ALL_0 = CCMASK_0;79const unsigned CCMASK_TM_MIXED_MSB_0 = CCMASK_1;80const unsigned CCMASK_TM_MIXED_MSB_1 = CCMASK_2;81const unsigned CCMASK_TM_ALL_1 = CCMASK_3;82const unsigned CCMASK_TM_SOME_0 = CCMASK_TM_ALL_1 ^ CCMASK_ANY;83const unsigned CCMASK_TM_SOME_1 = CCMASK_TM_ALL_0 ^ CCMASK_ANY;84const unsigned CCMASK_TM_MSB_0 = CCMASK_0 | CCMASK_1;85const unsigned CCMASK_TM_MSB_1 = CCMASK_2 | CCMASK_3;86const unsigned CCMASK_TM = CCMASK_ANY;87 88// Condition-code mask assignments for TRANSACTION_BEGIN.89const unsigned CCMASK_TBEGIN_STARTED = CCMASK_0;90const unsigned CCMASK_TBEGIN_INDETERMINATE = CCMASK_1;91const unsigned CCMASK_TBEGIN_TRANSIENT = CCMASK_2;92const unsigned CCMASK_TBEGIN_PERSISTENT = CCMASK_3;93const unsigned CCMASK_TBEGIN = CCMASK_ANY;94 95// Condition-code mask assignments for TRANSACTION_END.96const unsigned CCMASK_TEND_TX = CCMASK_0;97const unsigned CCMASK_TEND_NOTX = CCMASK_2;98const unsigned CCMASK_TEND = CCMASK_TEND_TX | CCMASK_TEND_NOTX;99 100// Condition-code mask assignments for vector comparisons (and similar101// operations).102const unsigned CCMASK_VCMP_ALL = CCMASK_0;103const unsigned CCMASK_VCMP_MIXED = CCMASK_1;104const unsigned CCMASK_VCMP_NONE = CCMASK_3;105const unsigned CCMASK_VCMP = CCMASK_0 | CCMASK_1 | CCMASK_3;106 107// Condition-code mask assignments for Test Data Class.108const unsigned CCMASK_TDC_NOMATCH = CCMASK_0;109const unsigned CCMASK_TDC_MATCH = CCMASK_1;110const unsigned CCMASK_TDC = CCMASK_TDC_NOMATCH | CCMASK_TDC_MATCH;111 112// The position of the low CC bit in an IPM result.113const unsigned IPM_CC = 28;114 115// Mask assignments for PFD.116const unsigned PFD_READ = 1;117const unsigned PFD_WRITE = 2;118 119// Mask assignments for TDC120const unsigned TDCMASK_ZERO_PLUS = 0x800;121const unsigned TDCMASK_ZERO_MINUS = 0x400;122const unsigned TDCMASK_NORMAL_PLUS = 0x200;123const unsigned TDCMASK_NORMAL_MINUS = 0x100;124const unsigned TDCMASK_SUBNORMAL_PLUS = 0x080;125const unsigned TDCMASK_SUBNORMAL_MINUS = 0x040;126const unsigned TDCMASK_INFINITY_PLUS = 0x020;127const unsigned TDCMASK_INFINITY_MINUS = 0x010;128const unsigned TDCMASK_QNAN_PLUS = 0x008;129const unsigned TDCMASK_QNAN_MINUS = 0x004;130const unsigned TDCMASK_SNAN_PLUS = 0x002;131const unsigned TDCMASK_SNAN_MINUS = 0x001;132 133const unsigned TDCMASK_ZERO = TDCMASK_ZERO_PLUS | TDCMASK_ZERO_MINUS;134const unsigned TDCMASK_POSITIVE = TDCMASK_NORMAL_PLUS |135 TDCMASK_SUBNORMAL_PLUS |136 TDCMASK_INFINITY_PLUS;137const unsigned TDCMASK_NEGATIVE = TDCMASK_NORMAL_MINUS |138 TDCMASK_SUBNORMAL_MINUS |139 TDCMASK_INFINITY_MINUS;140const unsigned TDCMASK_NAN = TDCMASK_QNAN_PLUS |141 TDCMASK_QNAN_MINUS |142 TDCMASK_SNAN_PLUS |143 TDCMASK_SNAN_MINUS;144const unsigned TDCMASK_PLUS = TDCMASK_POSITIVE |145 TDCMASK_ZERO_PLUS |146 TDCMASK_QNAN_PLUS |147 TDCMASK_SNAN_PLUS;148const unsigned TDCMASK_MINUS = TDCMASK_NEGATIVE |149 TDCMASK_ZERO_MINUS |150 TDCMASK_QNAN_MINUS |151 TDCMASK_SNAN_MINUS;152const unsigned TDCMASK_ALL = TDCMASK_PLUS | TDCMASK_MINUS;153 154// Number of bits in a vector register.155const unsigned VectorBits = 128;156 157// Number of bytes in a vector register (and consequently the number of158// bytes in a general permute vector).159const unsigned VectorBytes = VectorBits / 8;160 161// Return true if Val fits an LLILL operand.162static inline bool isImmLL(uint64_t Val) {163 return (Val & ~0x000000000000ffffULL) == 0;164}165 166// Return true if Val fits an LLILH operand.167static inline bool isImmLH(uint64_t Val) {168 return (Val & ~0x00000000ffff0000ULL) == 0;169}170 171// Return true if Val fits an LLIHL operand.172static inline bool isImmHL(uint64_t Val) {173 return (Val & ~0x00000ffff00000000ULL) == 0;174}175 176// Return true if Val fits an LLIHH operand.177static inline bool isImmHH(uint64_t Val) {178 return (Val & ~0xffff000000000000ULL) == 0;179}180 181// Return true if Val fits an LLILF operand.182static inline bool isImmLF(uint64_t Val) {183 return (Val & ~0x00000000ffffffffULL) == 0;184}185 186// Return true if Val fits an LLIHF operand.187static inline bool isImmHF(uint64_t Val) {188 return (Val & ~0xffffffff00000000ULL) == 0;189}190} // end namespace SystemZ191 192FunctionPass *createSystemZISelDag(SystemZTargetMachine &TM,193 CodeGenOptLevel OptLevel);194FunctionPass *createSystemZElimComparePass(SystemZTargetMachine &TM);195FunctionPass *createSystemZShortenInstPass(SystemZTargetMachine &TM);196FunctionPass *createSystemZLongBranchPass(SystemZTargetMachine &TM);197FunctionPass *createSystemZLDCleanupPass(SystemZTargetMachine &TM);198FunctionPass *createSystemZCopyPhysRegsPass(SystemZTargetMachine &TM);199FunctionPass *createSystemZPostRewritePass(SystemZTargetMachine &TM);200FunctionPass *createSystemZTDCPass();201 202void initializeSystemZAsmPrinterPass(PassRegistry &);203void initializeSystemZCopyPhysRegsPass(PassRegistry &);204void initializeSystemZDAGToDAGISelLegacyPass(PassRegistry &);205void initializeSystemZElimComparePass(PassRegistry &);206void initializeSystemZLDCleanupPass(PassRegistry &);207void initializeSystemZLongBranchPass(PassRegistry &);208void initializeSystemZPostRewritePass(PassRegistry &);209void initializeSystemZShortenInstPass(PassRegistry &);210void initializeSystemZTDCPassPass(PassRegistry &);211 212namespace SYSTEMZAS {213enum : unsigned { PTR32 = 1 };214} // namespace SYSTEMZAS215 216} // end namespace llvm217 218#endif219