1 //===-- SystemZSubtarget.h - SystemZ subtarget information -----*- C++ -*--===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the SystemZ specific subclass of TargetSubtargetInfo.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
15 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
17 #include "SystemZFrameLowering.h"
18 #include "SystemZISelLowering.h"
19 #include "SystemZInstrInfo.h"
20 #include "SystemZRegisterInfo.h"
21 #include "SystemZSelectionDAGInfo.h"
22 #include "llvm/IR/DataLayout.h"
23 #include "llvm/ADT/Triple.h"
24 #include "llvm/Target/TargetSubtargetInfo.h"
27 #define GET_SUBTARGETINFO_HEADER
28 #include "SystemZGenSubtargetInfo.inc"
34 class SystemZSubtarget : public SystemZGenSubtargetInfo {
35 virtual void anchor();
38 bool HasLoadStoreOnCond;
41 bool HasPopulationCount;
42 bool HasMessageSecurityAssist4;
43 bool HasFastSerialization;
44 bool HasInterlockedAccess1;
45 bool HasMiscellaneousExtensions;
46 bool HasExecutionHint;
48 bool HasTransactionalExecution;
49 bool HasProcessorAssist;
51 bool HasLoadStoreOnCond2;
52 bool HasLoadAndZeroRightmostByte;
53 bool HasMessageSecurityAssist5;
57 SystemZInstrInfo InstrInfo;
58 SystemZTargetLowering TLInfo;
59 SystemZSelectionDAGInfo TSInfo;
60 SystemZFrameLowering FrameLowering;
62 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU,
65 SystemZSubtarget(const Triple &TT, const std::string &CPU,
66 const std::string &FS, const TargetMachine &TM);
68 const TargetFrameLowering *getFrameLowering() const override {
69 return &FrameLowering;
71 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; }
72 const SystemZRegisterInfo *getRegisterInfo() const override {
73 return &InstrInfo.getRegisterInfo();
75 const SystemZTargetLowering *getTargetLowering() const override {
78 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
82 // This is important for reducing register pressure in vector code.
83 bool useAA() const override { return true; }
85 // Always enable the early if-conversion pass.
86 bool enableEarlyIfConversion() const override { return true; }
88 // Automatically generated by tblgen.
89 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
91 // Return true if the target has the distinct-operands facility.
92 bool hasDistinctOps() const { return HasDistinctOps; }
94 // Return true if the target has the load/store-on-condition facility.
95 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
97 // Return true if the target has the load/store-on-condition facility 2.
98 bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; }
100 // Return true if the target has the high-word facility.
101 bool hasHighWord() const { return HasHighWord; }
103 // Return true if the target has the floating-point extension facility.
104 bool hasFPExtension() const { return HasFPExtension; }
106 // Return true if the target has the population-count facility.
107 bool hasPopulationCount() const { return HasPopulationCount; }
109 // Return true if the target has the message-security-assist
110 // extension facility 4.
111 bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; }
113 // Return true if the target has the fast-serialization facility.
114 bool hasFastSerialization() const { return HasFastSerialization; }
116 // Return true if the target has interlocked-access facility 1.
117 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; }
119 // Return true if the target has the miscellaneous-extensions facility.
120 bool hasMiscellaneousExtensions() const {
121 return HasMiscellaneousExtensions;
124 // Return true if the target has the execution-hint facility.
125 bool hasExecutionHint() const { return HasExecutionHint; }
127 // Return true if the target has the load-and-trap facility.
128 bool hasLoadAndTrap() const { return HasLoadAndTrap; }
130 // Return true if the target has the transactional-execution facility.
131 bool hasTransactionalExecution() const { return HasTransactionalExecution; }
133 // Return true if the target has the processor-assist facility.
134 bool hasProcessorAssist() const { return HasProcessorAssist; }
136 // Return true if the target has the load-and-zero-rightmost-byte facility.
137 bool hasLoadAndZeroRightmostByte() const {
138 return HasLoadAndZeroRightmostByte;
141 // Return true if the target has the message-security-assist
142 // extension facility 5.
143 bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; }
145 // Return true if the target has the vector facility.
146 bool hasVector() const { return HasVector; }
148 // Return true if GV can be accessed using LARL for reloc model RM
149 // and code model CM.
150 bool isPC32DBLSymbol(const GlobalValue *GV, CodeModel::Model CM) const;
152 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
154 } // end namespace llvm