| //==- SystemZ.h - Top-Level Interface for SystemZ representation -*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains the entry points for global functions defined in |
| // the LLVM SystemZ backend. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H |
| #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H |
| |
| #include "MCTargetDesc/SystemZMCTargetDesc.h" |
| #include "llvm/Support/CodeGen.h" |
| |
| namespace llvm { |
| class SystemZTargetMachine; |
| class FunctionPass; |
| |
| namespace SystemZ { |
| // Condition-code mask values. |
| const unsigned CCMASK_0 = 1 << 3; |
| const unsigned CCMASK_1 = 1 << 2; |
| const unsigned CCMASK_2 = 1 << 1; |
| const unsigned CCMASK_3 = 1 << 0; |
| const unsigned CCMASK_ANY = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3; |
| |
| // Condition-code mask assignments for integer and floating-point |
| // comparisons. |
| const unsigned CCMASK_CMP_EQ = CCMASK_0; |
| const unsigned CCMASK_CMP_LT = CCMASK_1; |
| const unsigned CCMASK_CMP_GT = CCMASK_2; |
| const unsigned CCMASK_CMP_NE = CCMASK_CMP_LT | CCMASK_CMP_GT; |
| const unsigned CCMASK_CMP_LE = CCMASK_CMP_EQ | CCMASK_CMP_LT; |
| const unsigned CCMASK_CMP_GE = CCMASK_CMP_EQ | CCMASK_CMP_GT; |
| |
| // Condition-code mask assignments for floating-point comparisons only. |
| const unsigned CCMASK_CMP_UO = CCMASK_3; |
| const unsigned CCMASK_CMP_O = CCMASK_ANY ^ CCMASK_CMP_UO; |
| |
| // All condition-code values produced by comparisons. |
| const unsigned CCMASK_ICMP = CCMASK_0 | CCMASK_1 | CCMASK_2; |
| const unsigned CCMASK_FCMP = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3; |
| |
| // Condition-code mask assignments for arithmetical operations. |
| const unsigned CCMASK_ARITH_EQ = CCMASK_0; |
| const unsigned CCMASK_ARITH_LT = CCMASK_1; |
| const unsigned CCMASK_ARITH_GT = CCMASK_2; |
| const unsigned CCMASK_ARITH_OVERFLOW = CCMASK_3; |
| const unsigned CCMASK_ARITH = CCMASK_ANY; |
| |
| // Condition-code mask assignments for logical operations. |
| const unsigned CCMASK_LOGICAL_ZERO = CCMASK_0 | CCMASK_2; |
| const unsigned CCMASK_LOGICAL_NONZERO = CCMASK_1 | CCMASK_3; |
| const unsigned CCMASK_LOGICAL_CARRY = CCMASK_2 | CCMASK_3; |
| const unsigned CCMASK_LOGICAL_NOCARRY = CCMASK_0 | CCMASK_1; |
| const unsigned CCMASK_LOGICAL_BORROW = CCMASK_LOGICAL_NOCARRY; |
| const unsigned CCMASK_LOGICAL_NOBORROW = CCMASK_LOGICAL_CARRY; |
| const unsigned CCMASK_LOGICAL = CCMASK_ANY; |
| |
| // Condition-code mask assignments for CS. |
| const unsigned CCMASK_CS_EQ = CCMASK_0; |
| const unsigned CCMASK_CS_NE = CCMASK_1; |
| const unsigned CCMASK_CS = CCMASK_0 | CCMASK_1; |
| |
| // Condition-code mask assignments for a completed SRST loop. |
| const unsigned CCMASK_SRST_FOUND = CCMASK_1; |
| const unsigned CCMASK_SRST_NOTFOUND = CCMASK_2; |
| const unsigned CCMASK_SRST = CCMASK_1 | CCMASK_2; |
| |
| // Condition-code mask assignments for TEST UNDER MASK. |
| const unsigned CCMASK_TM_ALL_0 = CCMASK_0; |
| const unsigned CCMASK_TM_MIXED_MSB_0 = CCMASK_1; |
| const unsigned CCMASK_TM_MIXED_MSB_1 = CCMASK_2; |
| const unsigned CCMASK_TM_ALL_1 = CCMASK_3; |
| const unsigned CCMASK_TM_SOME_0 = CCMASK_TM_ALL_1 ^ CCMASK_ANY; |
| const unsigned CCMASK_TM_SOME_1 = CCMASK_TM_ALL_0 ^ CCMASK_ANY; |
| const unsigned CCMASK_TM_MSB_0 = CCMASK_0 | CCMASK_1; |
| const unsigned CCMASK_TM_MSB_1 = CCMASK_2 | CCMASK_3; |
| const unsigned CCMASK_TM = CCMASK_ANY; |
| |
| // Condition-code mask assignments for TRANSACTION_BEGIN. |
| const unsigned CCMASK_TBEGIN_STARTED = CCMASK_0; |
| const unsigned CCMASK_TBEGIN_INDETERMINATE = CCMASK_1; |
| const unsigned CCMASK_TBEGIN_TRANSIENT = CCMASK_2; |
| const unsigned CCMASK_TBEGIN_PERSISTENT = CCMASK_3; |
| const unsigned CCMASK_TBEGIN = CCMASK_ANY; |
| |
| // Condition-code mask assignments for TRANSACTION_END. |
| const unsigned CCMASK_TEND_TX = CCMASK_0; |
| const unsigned CCMASK_TEND_NOTX = CCMASK_2; |
| const unsigned CCMASK_TEND = CCMASK_TEND_TX | CCMASK_TEND_NOTX; |
| |
| // Condition-code mask assignments for vector comparisons (and similar |
| // operations). |
| const unsigned CCMASK_VCMP_ALL = CCMASK_0; |
| const unsigned CCMASK_VCMP_MIXED = CCMASK_1; |
| const unsigned CCMASK_VCMP_NONE = CCMASK_3; |
| const unsigned CCMASK_VCMP = CCMASK_0 | CCMASK_1 | CCMASK_3; |
| |
| // Condition-code mask assignments for Test Data Class. |
| const unsigned CCMASK_TDC_NOMATCH = CCMASK_0; |
| const unsigned CCMASK_TDC_MATCH = CCMASK_1; |
| const unsigned CCMASK_TDC = CCMASK_TDC_NOMATCH | CCMASK_TDC_MATCH; |
| |
| // The position of the low CC bit in an IPM result. |
| const unsigned IPM_CC = 28; |
| |
| // Mask assignments for PFD. |
| const unsigned PFD_READ = 1; |
| const unsigned PFD_WRITE = 2; |
| |
| // Mask assignments for TDC |
| const unsigned TDCMASK_ZERO_PLUS = 0x800; |
| const unsigned TDCMASK_ZERO_MINUS = 0x400; |
| const unsigned TDCMASK_NORMAL_PLUS = 0x200; |
| const unsigned TDCMASK_NORMAL_MINUS = 0x100; |
| const unsigned TDCMASK_SUBNORMAL_PLUS = 0x080; |
| const unsigned TDCMASK_SUBNORMAL_MINUS = 0x040; |
| const unsigned TDCMASK_INFINITY_PLUS = 0x020; |
| const unsigned TDCMASK_INFINITY_MINUS = 0x010; |
| const unsigned TDCMASK_QNAN_PLUS = 0x008; |
| const unsigned TDCMASK_QNAN_MINUS = 0x004; |
| const unsigned TDCMASK_SNAN_PLUS = 0x002; |
| const unsigned TDCMASK_SNAN_MINUS = 0x001; |
| |
| const unsigned TDCMASK_ZERO = TDCMASK_ZERO_PLUS | TDCMASK_ZERO_MINUS; |
| const unsigned TDCMASK_POSITIVE = TDCMASK_NORMAL_PLUS | |
| TDCMASK_SUBNORMAL_PLUS | |
| TDCMASK_INFINITY_PLUS; |
| const unsigned TDCMASK_NEGATIVE = TDCMASK_NORMAL_MINUS | |
| TDCMASK_SUBNORMAL_MINUS | |
| TDCMASK_INFINITY_MINUS; |
| const unsigned TDCMASK_NAN = TDCMASK_QNAN_PLUS | |
| TDCMASK_QNAN_MINUS | |
| TDCMASK_SNAN_PLUS | |
| TDCMASK_SNAN_MINUS; |
| const unsigned TDCMASK_PLUS = TDCMASK_POSITIVE | |
| TDCMASK_ZERO_PLUS | |
| TDCMASK_QNAN_PLUS | |
| TDCMASK_SNAN_PLUS; |
| const unsigned TDCMASK_MINUS = TDCMASK_NEGATIVE | |
| TDCMASK_ZERO_MINUS | |
| TDCMASK_QNAN_MINUS | |
| TDCMASK_SNAN_MINUS; |
| const unsigned TDCMASK_ALL = TDCMASK_PLUS | TDCMASK_MINUS; |
| |
| // Number of bits in a vector register. |
| const unsigned VectorBits = 128; |
| |
| // Number of bytes in a vector register (and consequently the number of |
| // bytes in a general permute vector). |
| const unsigned VectorBytes = VectorBits / 8; |
| |
| // Return true if Val fits an LLILL operand. |
| static inline bool isImmLL(uint64_t Val) { |
| return (Val & ~0x000000000000ffffULL) == 0; |
| } |
| |
| // Return true if Val fits an LLILH operand. |
| static inline bool isImmLH(uint64_t Val) { |
| return (Val & ~0x00000000ffff0000ULL) == 0; |
| } |
| |
| // Return true if Val fits an LLIHL operand. |
| static inline bool isImmHL(uint64_t Val) { |
| return (Val & ~0x00000ffff00000000ULL) == 0; |
| } |
| |
| // Return true if Val fits an LLIHH operand. |
| static inline bool isImmHH(uint64_t Val) { |
| return (Val & ~0xffff000000000000ULL) == 0; |
| } |
| |
| // Return true if Val fits an LLILF operand. |
| static inline bool isImmLF(uint64_t Val) { |
| return (Val & ~0x00000000ffffffffULL) == 0; |
| } |
| |
| // Return true if Val fits an LLIHF operand. |
| static inline bool isImmHF(uint64_t Val) { |
| return (Val & ~0xffffffff00000000ULL) == 0; |
| } |
| } // end namespace SystemZ |
| |
| FunctionPass *createSystemZISelDag(SystemZTargetMachine &TM, |
| CodeGenOpt::Level OptLevel); |
| FunctionPass *createSystemZElimComparePass(SystemZTargetMachine &TM); |
| FunctionPass *createSystemZShortenInstPass(SystemZTargetMachine &TM); |
| FunctionPass *createSystemZLongBranchPass(SystemZTargetMachine &TM); |
| FunctionPass *createSystemZLDCleanupPass(SystemZTargetMachine &TM); |
| FunctionPass *createSystemZCopyPhysRegsPass(SystemZTargetMachine &TM); |
| FunctionPass *createSystemZPostRewritePass(SystemZTargetMachine &TM); |
| FunctionPass *createSystemZTDCPass(); |
| } // end namespace llvm |
| |
| #endif |