1 //===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file declares the SPARC specific subclass of TargetSubtargetInfo. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef SPARC_SUBTARGET_H 15 #define SPARC_SUBTARGET_H 16 17 #include "llvm/Target/TargetSubtargetInfo.h" 18 #include <string> 19 20 #define GET_SUBTARGETINFO_HEADER 21 #include "SparcGenSubtargetInfo.inc" 22 23 namespace llvm { 24 class StringRef; 25 26 class SparcSubtarget : public SparcGenSubtargetInfo { 27 virtual void anchor(); 28 bool IsV9; 29 bool V8DeprecatedInsts; 30 bool IsVIS; 31 bool Is64Bit; 32 bool HasHardQuad; 33 34 public: 35 SparcSubtarget(const std::string &TT, const std::string &CPU, 36 const std::string &FS, bool is64bit); 37 38 bool isV9() const { return IsV9; } 39 bool isVIS() const { return IsVIS; } 40 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; } 41 bool hasHardQuad() const { return HasHardQuad; } 42 43 /// ParseSubtargetFeatures - Parses features string setting specified 44 /// subtarget options. Definition of function is auto generated by tblgen. 45 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 46 47 bool is64Bit() const { return Is64Bit; } 48 std::string getDataLayout() const { 49 const char *p; 50 if (is64Bit()) { 51 p = "E-p:64:64:64-i64:64:64-f64:64:64-f128:128:128-n32:64"; 52 } else { 53 p = "E-p:32:32:32-i64:64:64-f64:64:64-f128:64:64-n32"; 54 } 55 return std::string(p); 56 } 57 58 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame 59 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS]. 60 int64_t getStackPointerBias() const { 61 return is64Bit() ? 2047 : 0; 62 } 63 64 /// Given a actual stack size as determined by FrameInfo, this function 65 /// returns adjusted framesize which includes space for register window 66 /// spills and arguments. 67 int getAdjustedFrameSize(int stackSize) const; 68 69 }; 70 71 } // end namespace llvm 72 73 #endif 74