1 //===- MipsSubtarget.cpp - Mips Subtarget Information -----------*- 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 implements the Mips specific subclass of TargetSubtarget. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "MipsSubtarget.h" 15 #include "Mips.h" 16 #include "MipsGenSubtarget.inc" 17 #include "llvm/Module.h" 18 using namespace llvm; 19 20 MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M, 21 const std::string &FS, bool little) : 22 MipsArchVersion(Mips1), MipsABI(O32), IsLittle(little), IsSingleFloat(false), 23 IsFP64bit(false), IsGP64bit(false), HasVFPU(false), HasSEInReg(false) 24 { 25 std::string CPU = "mips1"; 26 27 // Parse features string. 28 ParseSubtargetFeatures(FS, CPU); 29 30 // When only the target triple is specified and is 31 // a allegrex target, set the features. We also match 32 // big and little endian allegrex cores (dont really 33 // know if a big one exists) 34 const std::string& TT = M.getTargetTriple(); 35 if (TT.find("mipsallegrex") != std::string::npos) { 36 MipsABI = EABI; 37 IsSingleFloat = true; 38 MipsArchVersion = Mips2; 39 HasVFPU = true; // Enables Allegrex Vector FPU (not supported yet) 40 HasSEInReg = true; 41 } 42 } 43