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 SYSTEMZSUBTARGET_H
15 #define SYSTEMZSUBTARGET_H
17 #include "llvm/ADT/Triple.h"
18 #include "llvm/Target/TargetSubtargetInfo.h"
21 #define GET_SUBTARGETINFO_HEADER
22 #include "SystemZGenSubtargetInfo.inc"
28 class SystemZSubtarget : public SystemZGenSubtargetInfo {
29 virtual void anchor();
32 bool HasLoadStoreOnCond;
35 bool HasFastSerialization;
41 SystemZSubtarget(const std::string &TT, const std::string &CPU,
42 const std::string &FS);
44 // This is important for reducing register pressure in vector code.
45 virtual bool useAA() const LLVM_OVERRIDE { return true; }
47 // Automatically generated by tblgen.
48 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
50 // Return true if the target has the distinct-operands facility.
51 bool hasDistinctOps() const { return HasDistinctOps; }
53 // Return true if the target has the load/store-on-condition facility.
54 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
56 // Return true if the target has the high-word facility.
57 bool hasHighWord() const { return HasHighWord; }
59 // Return true if the target has the floating-point extension facility.
60 bool hasFPExtension() const { return HasFPExtension; }
62 // Return true if the target has the fast-serialization facility.
63 bool hasFastSerialization() const { return HasFastSerialization; }
65 // Return true if GV can be accessed using LARL for reloc model RM
67 bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM,
68 CodeModel::Model CM) const;
70 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
72 } // end namespace llvm