lib/Target/XCore/XCoreTargetTransformInfo.h

   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
  36   const XCoreSubtarget *getST() const { return ST; }
  37   const XCoreTargetLowering *getTLI() const { return TLI; }
  38
  39 public:
  40   explicit XCoreTTIImpl(const XCoreTargetMachine *TM, const Function &F)
  41       : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl()),
  42         TLI(ST->getTargetLowering()) {}
  43
  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