1//===-- XCoreTargetTransformInfo.h - XCore specific TTI ---------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8/// \file
9/// This file a TargetTransformInfoImplBase conforming object specific to the
10/// XCore target machine. It uses the target's detailed information to
11/// provide more precise answers to certain TTI queries, while letting the
12/// target independent and default TTI implementations handle the rest.
13///
14//===----------------------------------------------------------------------===//
15
16#ifndef LLVM_LIB_TARGET_XCORE_XCORETARGETTRANSFORMINFO_H
17#define LLVM_LIB_TARGET_XCORE_XCORETARGETTRANSFORMINFO_H
18
19#include "XCore.h"
20#include "XCoreTargetMachine.h"
21#include "llvm/Analysis/TargetTransformInfo.h"
22#include "llvm/CodeGen/BasicTTIImpl.h"
23#include "llvm/CodeGen/TargetLowering.h"
24
25namespace llvm {
26
27class XCoreTTIImpl final : public BasicTTIImplBase<XCoreTTIImpl> {
28 typedef BasicTTIImplBase<XCoreTTIImpl> BaseT;
29 typedef TargetTransformInfo TTI;
30 friend BaseT;
31
32 const XCoreSubtarget *ST;
33 const XCoreTargetLowering *TLI;
34
35 const XCoreSubtarget *getST() const { return ST; }
36 const XCoreTargetLowering *getTLI() const { return TLI; }
37
38public:
39 explicit XCoreTTIImpl(const XCoreTargetMachine *TM, const Function &F)
40 : BaseT(TM, F.getDataLayout()), ST(TM->getSubtargetImpl()),
41 TLI(ST->getTargetLowering()) {}
42
43 unsigned getNumberOfRegisters(unsigned ClassID) const override {
44 bool Vector = (ClassID == 1);
45 if (Vector) {
46 return 0;
47 }
48 return 12;
49 }
50};
51
52} // end namespace llvm
53
54#endif
55