LLVM 19.0.0git
SystemZ.h
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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-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains the entry points for global functions defined in
10// the LLVM SystemZ backend.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H
15#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H
16
19
20namespace llvm {
21class FunctionPass;
22class PassRegistry;
23class SystemZTargetMachine;
24
25namespace SystemZ {
26// Condition-code mask values.
27const unsigned CCMASK_0 = 1 << 3;
28const unsigned CCMASK_1 = 1 << 2;
29const unsigned CCMASK_2 = 1 << 1;
30const unsigned CCMASK_3 = 1 << 0;
32
33// Condition-code mask assignments for integer and floating-point
34// comparisons.
35const unsigned CCMASK_CMP_EQ = CCMASK_0;
36const unsigned CCMASK_CMP_LT = CCMASK_1;
37const unsigned CCMASK_CMP_GT = CCMASK_2;
41
42// Condition-code mask assignments for floating-point comparisons only.
43const unsigned CCMASK_CMP_UO = CCMASK_3;
45
46// All condition-code values produced by comparisons.
49
50// Condition-code mask assignments for arithmetical operations.
51const unsigned CCMASK_ARITH_EQ = CCMASK_0;
52const unsigned CCMASK_ARITH_LT = CCMASK_1;
53const unsigned CCMASK_ARITH_GT = CCMASK_2;
55const unsigned CCMASK_ARITH = CCMASK_ANY;
56
57// Condition-code mask assignments for logical operations.
64const unsigned CCMASK_LOGICAL = CCMASK_ANY;
65
66// Condition-code mask assignments for CS.
67const unsigned CCMASK_CS_EQ = CCMASK_0;
68const unsigned CCMASK_CS_NE = CCMASK_1;
69const unsigned CCMASK_CS = CCMASK_0 | CCMASK_1;
70
71// Condition-code mask assignments for a completed SRST loop.
72const unsigned CCMASK_SRST_FOUND = CCMASK_1;
74const unsigned CCMASK_SRST = CCMASK_1 | CCMASK_2;
75
76// Condition-code mask assignments for TEST UNDER MASK.
77const unsigned CCMASK_TM_ALL_0 = CCMASK_0;
80const unsigned CCMASK_TM_ALL_1 = CCMASK_3;
85const unsigned CCMASK_TM = CCMASK_ANY;
86
87// Condition-code mask assignments for TRANSACTION_BEGIN.
92const unsigned CCMASK_TBEGIN = CCMASK_ANY;
93
94// Condition-code mask assignments for TRANSACTION_END.
95const unsigned CCMASK_TEND_TX = CCMASK_0;
96const unsigned CCMASK_TEND_NOTX = CCMASK_2;
98
99// Condition-code mask assignments for vector comparisons (and similar
100// operations).
101const unsigned CCMASK_VCMP_ALL = CCMASK_0;
103const unsigned CCMASK_VCMP_NONE = CCMASK_3;
105
106// Condition-code mask assignments for Test Data Class.
108const unsigned CCMASK_TDC_MATCH = CCMASK_1;
110
111// The position of the low CC bit in an IPM result.
112const unsigned IPM_CC = 28;
113
114// Mask assignments for PFD.
115const unsigned PFD_READ = 1;
116const unsigned PFD_WRITE = 2;
117
118// Mask assignments for TDC
119const unsigned TDCMASK_ZERO_PLUS = 0x800;
120const unsigned TDCMASK_ZERO_MINUS = 0x400;
121const unsigned TDCMASK_NORMAL_PLUS = 0x200;
122const unsigned TDCMASK_NORMAL_MINUS = 0x100;
123const unsigned TDCMASK_SUBNORMAL_PLUS = 0x080;
124const unsigned TDCMASK_SUBNORMAL_MINUS = 0x040;
125const unsigned TDCMASK_INFINITY_PLUS = 0x020;
126const unsigned TDCMASK_INFINITY_MINUS = 0x010;
127const unsigned TDCMASK_QNAN_PLUS = 0x008;
128const unsigned TDCMASK_QNAN_MINUS = 0x004;
129const unsigned TDCMASK_SNAN_PLUS = 0x002;
130const unsigned TDCMASK_SNAN_MINUS = 0x001;
131
152
153// Number of bits in a vector register.
154const unsigned VectorBits = 128;
155
156// Number of bytes in a vector register (and consequently the number of
157// bytes in a general permute vector).
158const unsigned VectorBytes = VectorBits / 8;
159
160// Return true if Val fits an LLILL operand.
161static inline bool isImmLL(uint64_t Val) {
162 return (Val & ~0x000000000000ffffULL) == 0;
163}
164
165// Return true if Val fits an LLILH operand.
166static inline bool isImmLH(uint64_t Val) {
167 return (Val & ~0x00000000ffff0000ULL) == 0;
168}
169
170// Return true if Val fits an LLIHL operand.
171static inline bool isImmHL(uint64_t Val) {
172 return (Val & ~0x00000ffff00000000ULL) == 0;
173}
174
175// Return true if Val fits an LLIHH operand.
176static inline bool isImmHH(uint64_t Val) {
177 return (Val & ~0xffff000000000000ULL) == 0;
178}
179
180// Return true if Val fits an LLILF operand.
181static inline bool isImmLF(uint64_t Val) {
182 return (Val & ~0x00000000ffffffffULL) == 0;
183}
184
185// Return true if Val fits an LLIHF operand.
186static inline bool isImmHF(uint64_t Val) {
187 return (Val & ~0xffffffff00000000ULL) == 0;
188}
189} // end namespace SystemZ
190
191FunctionPass *createSystemZISelDag(SystemZTargetMachine &TM,
192 CodeGenOptLevel OptLevel);
193FunctionPass *createSystemZElimComparePass(SystemZTargetMachine &TM);
200
209
210} // end namespace llvm
211
212#endif
const char LLVMTargetMachineRef TM
FunctionPass class - This class is used to implement most global optimizations.
Definition: Pass.h:311
PassRegistry - This class manages the registration and intitialization of the pass subsystem as appli...
Definition: PassRegistry.h:37
const unsigned CCMASK_ARITH_EQ
Definition: SystemZ.h:51
const unsigned CCMASK_CMP_GE
Definition: SystemZ.h:40
const unsigned CCMASK_LOGICAL_ZERO
Definition: SystemZ.h:58
const unsigned CCMASK_SRST_NOTFOUND
Definition: SystemZ.h:73
static bool isImmHH(uint64_t Val)
Definition: SystemZ.h:176
const unsigned CCMASK_TEND
Definition: SystemZ.h:97
const unsigned CCMASK_LOGICAL_NOCARRY
Definition: SystemZ.h:61
const unsigned CCMASK_CS_EQ
Definition: SystemZ.h:67
const unsigned CCMASK_TBEGIN
Definition: SystemZ.h:92
const unsigned TDCMASK_NEGATIVE
Definition: SystemZ.h:136
const unsigned CCMASK_SRST
Definition: SystemZ.h:74
const unsigned CCMASK_TEND_NOTX
Definition: SystemZ.h:96
const unsigned CCMASK_0
Definition: SystemZ.h:27
const unsigned CCMASK_TM_SOME_1
Definition: SystemZ.h:82
const unsigned CCMASK_LOGICAL_CARRY
Definition: SystemZ.h:60
const unsigned TDCMASK_NORMAL_MINUS
Definition: SystemZ.h:122
const unsigned CCMASK_TDC
Definition: SystemZ.h:109
const unsigned CCMASK_FCMP
Definition: SystemZ.h:48
const unsigned CCMASK_TM_SOME_0
Definition: SystemZ.h:81
const unsigned TDCMASK_MINUS
Definition: SystemZ.h:147
static bool isImmHL(uint64_t Val)
Definition: SystemZ.h:171
const unsigned TDCMASK_SUBNORMAL_MINUS
Definition: SystemZ.h:124
const unsigned TDCMASK_ZERO
Definition: SystemZ.h:132
const unsigned PFD_READ
Definition: SystemZ.h:115
const unsigned CCMASK_TBEGIN_PERSISTENT
Definition: SystemZ.h:91
const unsigned CCMASK_1
Definition: SystemZ.h:28
const unsigned TDCMASK_NORMAL_PLUS
Definition: SystemZ.h:121
const unsigned PFD_WRITE
Definition: SystemZ.h:116
const unsigned CCMASK_CMP_GT
Definition: SystemZ.h:37
const unsigned CCMASK_ARITH_LT
Definition: SystemZ.h:52
const unsigned CCMASK_ARITH_GT
Definition: SystemZ.h:53
const unsigned TDCMASK_QNAN_MINUS
Definition: SystemZ.h:128
const unsigned CCMASK_SRST_FOUND
Definition: SystemZ.h:72
const unsigned TDCMASK_ALL
Definition: SystemZ.h:151
const unsigned CCMASK_CS
Definition: SystemZ.h:69
const unsigned CCMASK_ANY
Definition: SystemZ.h:31
const unsigned CCMASK_ARITH
Definition: SystemZ.h:55
const unsigned CCMASK_TM_MIXED_MSB_0
Definition: SystemZ.h:78
const unsigned TDCMASK_SUBNORMAL_PLUS
Definition: SystemZ.h:123
const unsigned CCMASK_TBEGIN_TRANSIENT
Definition: SystemZ.h:90
static bool isImmLL(uint64_t Val)
Definition: SystemZ.h:161
const unsigned VectorBits
Definition: SystemZ.h:154
const unsigned CCMASK_TEND_TX
Definition: SystemZ.h:95
static bool isImmLH(uint64_t Val)
Definition: SystemZ.h:166
const unsigned TDCMASK_INFINITY_PLUS
Definition: SystemZ.h:125
const unsigned CCMASK_TM_ALL_0
Definition: SystemZ.h:77
const unsigned IPM_CC
Definition: SystemZ.h:112
const unsigned CCMASK_CMP_LE
Definition: SystemZ.h:39
static bool isImmHF(uint64_t Val)
Definition: SystemZ.h:186
const unsigned CCMASK_CMP_O
Definition: SystemZ.h:44
const unsigned CCMASK_CMP_EQ
Definition: SystemZ.h:35
const unsigned CCMASK_VCMP_MIXED
Definition: SystemZ.h:102
const unsigned VectorBytes
Definition: SystemZ.h:158
const unsigned TDCMASK_POSITIVE
Definition: SystemZ.h:133
const unsigned TDCMASK_INFINITY_MINUS
Definition: SystemZ.h:126
const unsigned CCMASK_ICMP
Definition: SystemZ.h:47
const unsigned CCMASK_TDC_NOMATCH
Definition: SystemZ.h:107
const unsigned CCMASK_VCMP_ALL
Definition: SystemZ.h:101
const unsigned CCMASK_VCMP_NONE
Definition: SystemZ.h:103
const unsigned TDCMASK_NAN
Definition: SystemZ.h:139
const unsigned CCMASK_TBEGIN_STARTED
Definition: SystemZ.h:88
const unsigned CCMASK_VCMP
Definition: SystemZ.h:104
const unsigned CCMASK_TDC_MATCH
Definition: SystemZ.h:108
const unsigned CCMASK_TM_MIXED_MSB_1
Definition: SystemZ.h:79
const unsigned CCMASK_TM_MSB_0
Definition: SystemZ.h:83
const unsigned CCMASK_ARITH_OVERFLOW
Definition: SystemZ.h:54
const unsigned CCMASK_CS_NE
Definition: SystemZ.h:68
const unsigned TDCMASK_SNAN_PLUS
Definition: SystemZ.h:129
const unsigned CCMASK_LOGICAL_NOBORROW
Definition: SystemZ.h:63
const unsigned CCMASK_TM
Definition: SystemZ.h:85
const unsigned CCMASK_3
Definition: SystemZ.h:30
const unsigned CCMASK_CMP_LT
Definition: SystemZ.h:36
const unsigned CCMASK_CMP_NE
Definition: SystemZ.h:38
const unsigned CCMASK_TBEGIN_INDETERMINATE
Definition: SystemZ.h:89
const unsigned CCMASK_LOGICAL_NONZERO
Definition: SystemZ.h:59
const unsigned TDCMASK_ZERO_PLUS
Definition: SystemZ.h:119
static bool isImmLF(uint64_t Val)
Definition: SystemZ.h:181
const unsigned TDCMASK_QNAN_PLUS
Definition: SystemZ.h:127
const unsigned TDCMASK_ZERO_MINUS
Definition: SystemZ.h:120
const unsigned CCMASK_TM_ALL_1
Definition: SystemZ.h:80
const unsigned TDCMASK_PLUS
Definition: SystemZ.h:143
const unsigned CCMASK_2
Definition: SystemZ.h:29
const unsigned CCMASK_LOGICAL_BORROW
Definition: SystemZ.h:62
const unsigned CCMASK_CMP_UO
Definition: SystemZ.h:43
const unsigned CCMASK_LOGICAL
Definition: SystemZ.h:64
const unsigned CCMASK_TM_MSB_1
Definition: SystemZ.h:84
const unsigned TDCMASK_SNAN_MINUS
Definition: SystemZ.h:130
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
void initializeSystemZElimComparePass(PassRegistry &)
FunctionPass * createSystemZLongBranchPass(SystemZTargetMachine &TM)
FunctionPass * createSystemZISelDag(SystemZTargetMachine &TM, CodeGenOptLevel OptLevel)
FunctionPass * createSystemZCopyPhysRegsPass(SystemZTargetMachine &TM)
FunctionPass * createSystemZElimComparePass(SystemZTargetMachine &TM)
void initializeSystemZDAGToDAGISelPass(PassRegistry &)
void initializeSystemZCopyPhysRegsPass(PassRegistry &)
void initializeSystemZLongBranchPass(PassRegistry &)
void initializeSystemZShortenInstPass(PassRegistry &)
FunctionPass * createSystemZTDCPass()
FunctionPass * createSystemZShortenInstPass(SystemZTargetMachine &TM)
void initializeSystemZPostRewritePass(PassRegistry &)
CodeGenOptLevel
Code generation optimization level.
Definition: CodeGen.h:54
void initializeSystemZTDCPassPass(PassRegistry &)
FunctionPass * createSystemZLDCleanupPass(SystemZTargetMachine &TM)
FunctionPass * createSystemZPostRewritePass(SystemZTargetMachine &TM)
void initializeSystemZLDCleanupPass(PassRegistry &)