SparcSubtarget.cpp revision 3e74d6fdd248e20a280f1dff3da9a6c689c2c4c3 
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
22using namespace llvm;
23
24SparcSubtarget::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