1//===-- XCoreTargetTransformInfo.h - XCore specific TTI ---------*- 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/// \file
10/// This file a TargetTransformInfo::Concept conforming object specific to the
11/// XCore target machine. It uses the target's detailed information to
12/// provide more precise answers to certain TTI queries, while letting the
13/// target independent and default TTI implementations handle the rest.
14///
15//===----------------------------------------------------------------------===//
16
17#ifndef LLVM_LIB_TARGET_XCORE_XCORETARGETTRANSFORMINFO_H
18#define LLVM_LIB_TARGET_XCORE_XCORETARGETTRANSFORMINFO_H
19
20#include "XCore.h"
21#include "XCoreTargetMachine.h"
22#include "llvm/Analysis/TargetTransformInfo.h"
23#include "llvm/CodeGen/BasicTTIImpl.h"
24#include "llvm/Target/TargetLowering.h"
25
26namespace llvm {
27
28class XCoreTTIImpl : public BasicTTIImplBase<XCoreTTIImpl> {
29  typedef BasicTTIImplBase<XCoreTTIImpl> BaseT;
30  typedef TargetTransformInfo TTI;
31  friend BaseT;
32
33  const XCoreSubtarget *ST;
34  const XCoreTargetLowering *TLI;
35
36  const XCoreSubtarget *getST() const { return ST; }
37  const XCoreTargetLowering *getTLI() const { return TLI; }
38
39public:
40  explicit XCoreTTIImpl(const XCoreTargetMachine *TM, const Function &F)
41      : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl()),
42        TLI(ST->getTargetLowering()) {}
43
44  // Provide value semantics. MSVC requires that we spell all of these out.
45  XCoreTTIImpl(const XCoreTTIImpl &Arg)
46      : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
47  XCoreTTIImpl(XCoreTTIImpl &&Arg)
48      : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
49        TLI(std::move(Arg.TLI)) {}
50
51  unsigned getNumberOfRegisters(bool Vector) {
52    if (Vector) {
53      return 0;
54    }
55    return 12;
56  }
57};
58
59} // end namespace llvm
60
61#endif
62