AMDGPUSubtarget.cpp revision b570599c8f048c2eda78edb9304bd8e283fb6908 
1//===-- AMDGPUSubtarget.cpp - AMDGPU Subtarget Information ----------------===//
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//
10/// \file
11/// \brief Implements the AMDGPU specific subclass of TargetSubtarget.
12//
13//===----------------------------------------------------------------------===//
14
15#include "AMDGPUSubtarget.h"
16
17using namespace llvm;
18
19#define GET_SUBTARGETINFO_ENUM
20#define GET_SUBTARGETINFO_TARGET_DESC
21#define GET_SUBTARGETINFO_CTOR
22#include "AMDGPUGenSubtargetInfo.inc"
23
24AMDGPUSubtarget::AMDGPUSubtarget(StringRef TT, StringRef CPU, StringRef FS) :
25  AMDGPUGenSubtargetInfo(TT, CPU, FS), DumpCode(false) {
26    InstrItins = getInstrItineraryForCPU(CPU);
27
28  // Default card
29  StringRef GPU = CPU;
30  Is64bit = false;
31  DefaultSize[0] = 64;
32  DefaultSize[1] = 1;
33  DefaultSize[2] = 1;
34  HasVertexCache = false;
35  TexVTXClauseSize = 0;
36  Gen = AMDGPUSubtarget::R600;
37  FP64 = false;
38  CaymanISA = false;
39  EnableIRStructurizer = true;
40  EnableIfCvt = true;
41  ParseSubtargetFeatures(GPU, FS);
42  DevName = GPU;
43}
44
45bool
46AMDGPUSubtarget::is64bit() const  {
47  return Is64bit;
48}
49bool
50AMDGPUSubtarget::hasVertexCache() const {
51  return HasVertexCache;
52}
53short
54AMDGPUSubtarget::getTexVTXClauseSize() const {
55  return TexVTXClauseSize;
56}
57enum AMDGPUSubtarget::Generation
58AMDGPUSubtarget::getGeneration() const {
59  return Gen;
60}
61bool
62AMDGPUSubtarget::hasHWFP64() const {
63  return FP64;
64}
65bool
66AMDGPUSubtarget::hasCaymanISA() const {
67  return CaymanISA;
68}
69bool
70AMDGPUSubtarget::IsIRStructurizerEnabled() const {
71  return EnableIRStructurizer;
72}
73bool
74AMDGPUSubtarget::isIfCvtEnabled() const {
75  return EnableIfCvt;
76}
77bool
78AMDGPUSubtarget::isTargetELF() const {
79  return false;
80}
81size_t
82AMDGPUSubtarget::getDefaultSize(uint32_t dim) const {
83  if (dim > 3) {
84    return 1;
85  } else {
86    return DefaultSize[dim];
87  }
88}
89
90std::string
91AMDGPUSubtarget::getDataLayout() const {
92  std::string DataLayout = std::string(
93   "e"
94   "-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32"
95   "-v16:16:16-v24:32:32-v32:32:32-v48:64:64-v64:64:64-v96:128:128-v128:128:128"
96   "-v192:256:256-v256:256:256-v512:512:512-v1024:1024:1024-v2048:2048:2048"
97   "-n32:64"
98  );
99
100  if (hasHWFP64()) {
101    DataLayout.append("-f64:64:64");
102  }
103
104  if (is64bit()) {
105    DataLayout.append("-p:64:64:64");
106  } else {
107    DataLayout.append("-p:32:32:32");
108  }
109
110  if (Gen >= AMDGPUSubtarget::SOUTHERN_ISLANDS) {
111    DataLayout.append("-p3:32:32:32");
112  }
113
114  return DataLayout;
115}
116
117std::string
118AMDGPUSubtarget::getDeviceName() const {
119  return DevName;
120}
121