1 //===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- 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 SPARC specific subclass of TargetSubtargetInfo.
12 //===----------------------------------------------------------------------===//
14 #ifndef SPARC_SUBTARGET_H
15 #define SPARC_SUBTARGET_H
17 #include "llvm/Target/TargetSubtargetInfo.h"
20 #define GET_SUBTARGETINFO_HEADER
21 #include "SparcGenSubtargetInfo.inc"
26 class SparcSubtarget : public SparcGenSubtargetInfo {
27 virtual void anchor();
29 bool V8DeprecatedInsts;
35 SparcSubtarget(const std::string &TT, const std::string &CPU,
36 const std::string &FS, bool is64bit);
38 bool isV9() const { return IsV9; }
39 bool isVIS() const { return IsVIS; }
40 bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; }
41 bool hasHardQuad() const { return HasHardQuad; }
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);
47 bool is64Bit() const { return Is64Bit; }
49 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
50 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
51 int64_t getStackPointerBias() const {
52 return is64Bit() ? 2047 : 0;
55 /// Given a actual stack size as determined by FrameInfo, this function
56 /// returns adjusted framesize which includes space for register window
57 /// spills and arguments.
58 int getAdjustedFrameSize(int stackSize) const;
62 } // end namespace llvm