1 //===-- SystemZSubtarget.h - SystemZ subtarget information -----*- C++ -*--===//
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
7 //===----------------------------------------------------------------------===//
9 // This file declares the SystemZ specific subclass of TargetSubtargetInfo.
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
14 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
16 #include "SystemZFrameLowering.h"
17 #include "SystemZISelLowering.h"
18 #include "SystemZInstrInfo.h"
19 #include "SystemZRegisterInfo.h"
20 #include "SystemZSelectionDAGInfo.h"
21 #include "llvm/ADT/Triple.h"
22 #include "llvm/CodeGen/TargetSubtargetInfo.h"
23 #include "llvm/IR/DataLayout.h"
26 #define GET_SUBTARGETINFO_HEADER
27 #include "SystemZGenSubtargetInfo.inc"
33 class SystemZSubtarget : public SystemZGenSubtargetInfo {
34 virtual void anchor();
37 bool HasLoadStoreOnCond;
40 bool HasPopulationCount;
41 bool HasMessageSecurityAssist3;
42 bool HasMessageSecurityAssist4;
43 bool HasResetReferenceBitsMultiple;
44 bool HasFastSerialization;
45 bool HasInterlockedAccess1;
46 bool HasMiscellaneousExtensions;
47 bool HasExecutionHint;
49 bool HasTransactionalExecution;
50 bool HasProcessorAssist;
51 bool HasDFPZonedConversion;
54 bool HasLoadStoreOnCond2;
55 bool HasLoadAndZeroRightmostByte;
56 bool HasMessageSecurityAssist5;
57 bool HasDFPPackedConversion;
58 bool HasMiscellaneousExtensions2;
59 bool HasGuardedStorage;
60 bool HasMessageSecurityAssist7;
61 bool HasMessageSecurityAssist8;
62 bool HasVectorEnhancements1;
63 bool HasVectorPackedDecimal;
64 bool HasInsertReferenceBitsMultiple;
65 bool HasMiscellaneousExtensions3;
66 bool HasMessageSecurityAssist9;
67 bool HasVectorEnhancements2;
68 bool HasVectorPackedDecimalEnhancement;
70 bool HasDeflateConversion;
75 SystemZInstrInfo InstrInfo;
76 SystemZTargetLowering TLInfo;
77 SystemZSelectionDAGInfo TSInfo;
78 SystemZFrameLowering FrameLowering;
80 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU,
83 SystemZSubtarget(const Triple &TT, const std::string &CPU,
84 const std::string &FS, const TargetMachine &TM);
86 const TargetFrameLowering *getFrameLowering() const override {
87 return &FrameLowering;
89 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; }
90 const SystemZRegisterInfo *getRegisterInfo() const override {
91 return &InstrInfo.getRegisterInfo();
93 const SystemZTargetLowering *getTargetLowering() const override {
96 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
100 // True if the subtarget should run MachineScheduler after aggressive
101 // coalescing. This currently replaces the SelectionDAG scheduler with the
102 // "source" order scheduler.
103 bool enableMachineScheduler() const override { return true; }
105 // This is important for reducing register pressure in vector code.
106 bool useAA() const override { return true; }
108 // Always enable the early if-conversion pass.
109 bool enableEarlyIfConversion() const override { return true; }
111 // Enable tracking of subregister liveness in register allocator.
112 bool enableSubRegLiveness() const override;
114 // Automatically generated by tblgen.
115 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
117 // Return true if the target has the distinct-operands facility.
118 bool hasDistinctOps() const { return HasDistinctOps; }
120 // Return true if the target has the load/store-on-condition facility.
121 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
123 // Return true if the target has the load/store-on-condition facility 2.
124 bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; }
126 // Return true if the target has the high-word facility.
127 bool hasHighWord() const { return HasHighWord; }
129 // Return true if the target has the floating-point extension facility.
130 bool hasFPExtension() const { return HasFPExtension; }
132 // Return true if the target has the population-count facility.
133 bool hasPopulationCount() const { return HasPopulationCount; }
135 // Return true if the target has the message-security-assist
136 // extension facility 3.
137 bool hasMessageSecurityAssist3() const { return HasMessageSecurityAssist3; }
139 // Return true if the target has the message-security-assist
140 // extension facility 4.
141 bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; }
143 // Return true if the target has the reset-reference-bits-multiple facility.
144 bool hasResetReferenceBitsMultiple() const {
145 return HasResetReferenceBitsMultiple;
148 // Return true if the target has the fast-serialization facility.
149 bool hasFastSerialization() const { return HasFastSerialization; }
151 // Return true if the target has interlocked-access facility 1.
152 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; }
154 // Return true if the target has the miscellaneous-extensions facility.
155 bool hasMiscellaneousExtensions() const {
156 return HasMiscellaneousExtensions;
159 // Return true if the target has the execution-hint facility.
160 bool hasExecutionHint() const { return HasExecutionHint; }
162 // Return true if the target has the load-and-trap facility.
163 bool hasLoadAndTrap() const { return HasLoadAndTrap; }
165 // Return true if the target has the transactional-execution facility.
166 bool hasTransactionalExecution() const { return HasTransactionalExecution; }
168 // Return true if the target has the processor-assist facility.
169 bool hasProcessorAssist() const { return HasProcessorAssist; }
171 // Return true if the target has the DFP zoned-conversion facility.
172 bool hasDFPZonedConversion() const { return HasDFPZonedConversion; }
174 // Return true if the target has the enhanced-DAT facility 2.
175 bool hasEnhancedDAT2() const { return HasEnhancedDAT2; }
177 // Return true if the target has the load-and-zero-rightmost-byte facility.
178 bool hasLoadAndZeroRightmostByte() const {
179 return HasLoadAndZeroRightmostByte;
182 // Return true if the target has the message-security-assist
183 // extension facility 5.
184 bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; }
186 // Return true if the target has the DFP packed-conversion facility.
187 bool hasDFPPackedConversion() const { return HasDFPPackedConversion; }
189 // Return true if the target has the vector facility.
190 bool hasVector() const { return HasVector; }
192 // Return true if the target has the miscellaneous-extensions facility 2.
193 bool hasMiscellaneousExtensions2() const {
194 return HasMiscellaneousExtensions2;
197 // Return true if the target has the guarded-storage facility.
198 bool hasGuardedStorage() const { return HasGuardedStorage; }
200 // Return true if the target has the message-security-assist
201 // extension facility 7.
202 bool hasMessageSecurityAssist7() const { return HasMessageSecurityAssist7; }
204 // Return true if the target has the message-security-assist
205 // extension facility 8.
206 bool hasMessageSecurityAssist8() const { return HasMessageSecurityAssist8; }
208 // Return true if the target has the vector-enhancements facility 1.
209 bool hasVectorEnhancements1() const { return HasVectorEnhancements1; }
211 // Return true if the target has the vector-packed-decimal facility.
212 bool hasVectorPackedDecimal() const { return HasVectorPackedDecimal; }
214 // Return true if the target has the insert-reference-bits-multiple facility.
215 bool hasInsertReferenceBitsMultiple() const {
216 return HasInsertReferenceBitsMultiple;
219 // Return true if the target has the miscellaneous-extensions facility 3.
220 bool hasMiscellaneousExtensions3() const {
221 return HasMiscellaneousExtensions3;
224 // Return true if the target has the message-security-assist
225 // extension facility 9.
226 bool hasMessageSecurityAssist9() const { return HasMessageSecurityAssist9; }
228 // Return true if the target has the vector-enhancements facility 2.
229 bool hasVectorEnhancements2() const { return HasVectorEnhancements2; }
231 // Return true if the target has the vector-packed-decimal
232 // enhancement facility.
233 bool hasVectorPackedDecimalEnhancement() const {
234 return HasVectorPackedDecimalEnhancement;
237 // Return true if the target has the enhanced-sort facility.
238 bool hasEnhancedSort() const { return HasEnhancedSort; }
240 // Return true if the target has the deflate-conversion facility.
241 bool hasDeflateConversion() const { return HasDeflateConversion; }
243 // Return true if soft float should be used.
244 bool hasSoftFloat() const { return HasSoftFloat; }
246 // Return true if GV can be accessed using LARL for reloc model RM
247 // and code model CM.
248 bool isPC32DBLSymbol(const GlobalValue *GV, CodeModel::Model CM) const;
250 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
252 } // end namespace llvm