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 
26 namespace llvm {
27 
28 class 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 
getST()36   const XCoreSubtarget *getST() const { return ST; }
getTLI()37   const XCoreTargetLowering *getTLI() const { return TLI; }
38 
39 public:
XCoreTTIImpl(const XCoreTargetMachine * TM,const Function & F)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.
XCoreTTIImpl(const XCoreTTIImpl & Arg)45   XCoreTTIImpl(const XCoreTTIImpl &Arg)
46       : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
XCoreTTIImpl(XCoreTTIImpl && Arg)47   XCoreTTIImpl(XCoreTTIImpl &&Arg)
48       : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
49         TLI(std::move(Arg.TLI)) {}
50 
getNumberOfRegisters(bool Vector)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