SystemZTargetInfo.cpp revision 4cb1e13769856716261a4d315f8202bd918502c3 
1//===-- SystemZTargetInfo.cpp - SystemZ Target Implementation -----------------===//
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#include "SystemZ.h"
11#include "llvm/Module.h"
12#include "llvm/Target/TargetRegistry.h"
13using namespace llvm;
14
15Target llvm::TheSystemZTarget;
16
17static unsigned SystemZ_JITMatchQuality() {
18  return 0;
19}
20
21static unsigned SystemZ_TripleMatchQuality(const std::string &TT) {
22  // We strongly match s390x
23  if (TT.size() >= 5 && TT[0] == 's' && TT[1] == '3' && TT[2] == '9' &&
24      TT[3] == '0' &&  TT[4] == 'x')
25    return 20;
26
27  return 0;
28}
29
30static unsigned SystemZ_ModuleMatchQuality(const Module &M) {
31  // Check for a triple match.
32  if (unsigned Q = SystemZ_TripleMatchQuality(M.getTargetTriple()))
33    return Q;
34
35  // Otherwise we don't match.
36  return 0;
37}
38
39extern "C" void LLVMInitializeSystemZTargetInfo() {
40  TargetRegistry::RegisterTarget(TheSystemZTarget, "systemz",
41                                 "SystemZ",
42                                 &SystemZ_TripleMatchQuality,
43                                 &SystemZ_ModuleMatchQuality,
44                                 &SystemZ_JITMatchQuality);
45}
46