1 //===-- R600Subtarget.cpp - R600 Subtarget Information --------------------===//
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 //
9 /// \file
10 /// Implements the R600 specific subclass of TargetSubtarget.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "R600Subtarget.h"
15 #include "AMDGPUSelectionDAGInfo.h"
16 #include "MCTargetDesc/R600MCTargetDesc.h"
17
18 using namespace llvm;
19
20 #define DEBUG_TYPE "r600-subtarget"
21
22 #define GET_SUBTARGETINFO_TARGET_DESC
23 #define GET_SUBTARGETINFO_CTOR
24 #include "R600GenSubtargetInfo.inc"
25
R600Subtarget(const Triple & TT,StringRef GPU,StringRef FS,const TargetMachine & TM)26 R600Subtarget::R600Subtarget(const Triple &TT, StringRef GPU, StringRef FS,
27 const TargetMachine &TM)
28 : R600GenSubtargetInfo(TT, GPU, /*TuneCPU*/ GPU, FS), AMDGPUSubtarget(TT),
29 InstrInfo(*this),
30 FrameLowering(TargetFrameLowering::StackGrowsUp, getStackAlignment(), 0),
31 TLInfo(TM, initializeSubtargetDependencies(TT, GPU, FS)),
32 InstrItins(getInstrItineraryForCPU(GPU)) {
33 LocalMemorySize = AddressableLocalMemorySize;
34 TSInfo = std::make_unique<AMDGPUSelectionDAGInfo>();
35 }
36
37 R600Subtarget::~R600Subtarget() = default;
38
getSelectionDAGInfo() const39 const SelectionDAGTargetInfo *R600Subtarget::getSelectionDAGInfo() const {
40 return TSInfo.get();
41 }
42
initializeSubtargetDependencies(const Triple & TT,StringRef GPU,StringRef FS)43 R600Subtarget &R600Subtarget::initializeSubtargetDependencies(const Triple &TT,
44 StringRef GPU,
45 StringRef FS) {
46 SmallString<256> FullFS("+promote-alloca,");
47 FullFS += FS;
48 ParseSubtargetFeatures(GPU, /*TuneCPU*/ GPU, FullFS);
49
50 HasMulU24 = getGeneration() >= EVERGREEN;
51 HasMulI24 = hasCaymanISA();
52
53 return *this;
54 }
55