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      1 //===- SparcSubtarget.cpp - SPARC Subtarget Information -------------------===//
      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 SPARC specific subclass of TargetSubtargetInfo.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "SparcSubtarget.h"
     15 #include "Sparc.h"
     16 #include "llvm/Support/TargetRegistry.h"
     17 
     18 #define GET_SUBTARGETINFO_TARGET_DESC
     19 #define GET_SUBTARGETINFO_CTOR
     20 #include "SparcGenSubtargetInfo.inc"
     21 
     22 using namespace llvm;
     23 
     24 SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &CPU,
     25                                const std::string &FS,  bool is64Bit) :
     26   SparcGenSubtargetInfo(TT, CPU, FS),
     27   IsV9(false),
     28   V8DeprecatedInsts(false),
     29   IsVIS(false),
     30   Is64Bit(is64Bit) {
     31 
     32   // Determine default and user specified characteristics
     33   std::string CPUName = CPU;
     34   if (CPUName.empty()) {
     35     if (is64Bit)
     36       CPUName = "v9";
     37     else
     38       CPUName = "v8";
     39   }
     40   IsV9 = CPUName == "v9";
     41 
     42   // Parse features string.
     43   ParseSubtargetFeatures(CPUName, FS);
     44 }
     45