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/CodeGen/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 
getNumberOfRegisters(bool Vector)44   unsigned getNumberOfRegisters(bool Vector) {
45     if (Vector) {
46       return 0;
47     }
48     return 12;
49   }
50 };
51 
52 } // end namespace llvm
53 
54 #endif
55