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			209 lines
		
	
	
		
			8.0 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			209 lines
		
	
	
		
			8.0 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===-- TargetParser - Parser for target features ---------------*- C++ -*-===//
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| //
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| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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| // See https://llvm.org/LICENSE.txt for license information.
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| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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| //
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| //===----------------------------------------------------------------------===//
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| //
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| // This file implements a target parser to recognise hardware features such as
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| // FPU/CPU/ARCH names as well as specific support such as HDIV, etc.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "llvm/Support/ARMBuildAttributes.h"
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| #include "llvm/Support/TargetParser.h"
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| #include "llvm/ADT/ArrayRef.h"
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| #include "llvm/ADT/StringSwitch.h"
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| #include "llvm/ADT/Twine.h"
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| 
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| using namespace llvm;
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| using namespace AMDGPU;
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| 
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| namespace {
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| 
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| struct GPUInfo {
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|   StringLiteral Name;
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|   StringLiteral CanonicalName;
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|   AMDGPU::GPUKind Kind;
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|   unsigned Features;
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| };
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| 
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| constexpr GPUInfo R600GPUs[26] = {
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|   // Name       Canonical    Kind        Features
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|   //            Name
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|   {{"r600"},    {"r600"},    GK_R600,    FEATURE_NONE },
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|   {{"rv630"},   {"r600"},    GK_R600,    FEATURE_NONE },
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|   {{"rv635"},   {"r600"},    GK_R600,    FEATURE_NONE },
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|   {{"r630"},    {"r630"},    GK_R630,    FEATURE_NONE },
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|   {{"rs780"},   {"rs880"},   GK_RS880,   FEATURE_NONE },
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|   {{"rs880"},   {"rs880"},   GK_RS880,   FEATURE_NONE },
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|   {{"rv610"},   {"rs880"},   GK_RS880,   FEATURE_NONE },
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|   {{"rv620"},   {"rs880"},   GK_RS880,   FEATURE_NONE },
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|   {{"rv670"},   {"rv670"},   GK_RV670,   FEATURE_NONE },
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|   {{"rv710"},   {"rv710"},   GK_RV710,   FEATURE_NONE },
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|   {{"rv730"},   {"rv730"},   GK_RV730,   FEATURE_NONE },
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|   {{"rv740"},   {"rv770"},   GK_RV770,   FEATURE_NONE },
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|   {{"rv770"},   {"rv770"},   GK_RV770,   FEATURE_NONE },
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|   {{"cedar"},   {"cedar"},   GK_CEDAR,   FEATURE_NONE },
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|   {{"palm"},    {"cedar"},   GK_CEDAR,   FEATURE_NONE },
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|   {{"cypress"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA  },
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|   {{"hemlock"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA  },
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|   {{"juniper"}, {"juniper"}, GK_JUNIPER, FEATURE_NONE },
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|   {{"redwood"}, {"redwood"}, GK_REDWOOD, FEATURE_NONE },
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|   {{"sumo"},    {"sumo"},    GK_SUMO,    FEATURE_NONE },
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|   {{"sumo2"},   {"sumo"},    GK_SUMO,    FEATURE_NONE },
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|   {{"barts"},   {"barts"},   GK_BARTS,   FEATURE_NONE },
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|   {{"caicos"},  {"caicos"},  GK_CAICOS,  FEATURE_NONE },
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|   {{"aruba"},   {"cayman"},  GK_CAYMAN,  FEATURE_FMA  },
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|   {{"cayman"},  {"cayman"},  GK_CAYMAN,  FEATURE_FMA  },
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|   {{"turks"},   {"turks"},   GK_TURKS,   FEATURE_NONE }
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| };
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| 
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| // This table should be sorted by the value of GPUKind
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| // Don't bother listing the implicitly true features
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| constexpr GPUInfo AMDGCNGPUs[37] = {
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|   // Name         Canonical    Kind        Features
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|   //              Name
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|   {{"gfx600"},    {"gfx600"},  GK_GFX600,  FEATURE_FAST_FMA_F32},
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|   {{"tahiti"},    {"gfx600"},  GK_GFX600,  FEATURE_FAST_FMA_F32},
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|   {{"gfx601"},    {"gfx601"},  GK_GFX601,  FEATURE_NONE},
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|   {{"hainan"},    {"gfx601"},  GK_GFX601,  FEATURE_NONE},
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|   {{"oland"},     {"gfx601"},  GK_GFX601,  FEATURE_NONE},
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|   {{"pitcairn"},  {"gfx601"},  GK_GFX601,  FEATURE_NONE},
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|   {{"verde"},     {"gfx601"},  GK_GFX601,  FEATURE_NONE},
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|   {{"gfx700"},    {"gfx700"},  GK_GFX700,  FEATURE_NONE},
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|   {{"kaveri"},    {"gfx700"},  GK_GFX700,  FEATURE_NONE},
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|   {{"gfx701"},    {"gfx701"},  GK_GFX701,  FEATURE_FAST_FMA_F32},
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|   {{"hawaii"},    {"gfx701"},  GK_GFX701,  FEATURE_FAST_FMA_F32},
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|   {{"gfx702"},    {"gfx702"},  GK_GFX702,  FEATURE_FAST_FMA_F32},
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|   {{"gfx703"},    {"gfx703"},  GK_GFX703,  FEATURE_NONE},
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|   {{"kabini"},    {"gfx703"},  GK_GFX703,  FEATURE_NONE},
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|   {{"mullins"},   {"gfx703"},  GK_GFX703,  FEATURE_NONE},
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|   {{"gfx704"},    {"gfx704"},  GK_GFX704,  FEATURE_NONE},
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|   {{"bonaire"},   {"gfx704"},  GK_GFX704,  FEATURE_NONE},
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|   {{"gfx801"},    {"gfx801"},  GK_GFX801,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"carrizo"},   {"gfx801"},  GK_GFX801,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx802"},    {"gfx802"},  GK_GFX802,  FEATURE_FAST_DENORMAL_F32},
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|   {{"iceland"},   {"gfx802"},  GK_GFX802,  FEATURE_FAST_DENORMAL_F32},
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|   {{"tonga"},     {"gfx802"},  GK_GFX802,  FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx803"},    {"gfx803"},  GK_GFX803,  FEATURE_FAST_DENORMAL_F32},
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|   {{"fiji"},      {"gfx803"},  GK_GFX803,  FEATURE_FAST_DENORMAL_F32},
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|   {{"polaris10"}, {"gfx803"},  GK_GFX803,  FEATURE_FAST_DENORMAL_F32},
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|   {{"polaris11"}, {"gfx803"},  GK_GFX803,  FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx810"},    {"gfx810"},  GK_GFX810,  FEATURE_FAST_DENORMAL_F32},
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|   {{"stoney"},    {"gfx810"},  GK_GFX810,  FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx900"},    {"gfx900"},  GK_GFX900,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx902"},    {"gfx902"},  GK_GFX902,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx904"},    {"gfx904"},  GK_GFX904,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx906"},    {"gfx906"},  GK_GFX906,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx908"},    {"gfx908"},  GK_GFX908,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx909"},    {"gfx909"},  GK_GFX909,  FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx1010"},   {"gfx1010"}, GK_GFX1010, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx1011"},   {"gfx1011"}, GK_GFX1011, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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|   {{"gfx1012"},   {"gfx1012"}, GK_GFX1012, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32},
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| };
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| 
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| const GPUInfo *getArchEntry(AMDGPU::GPUKind AK, ArrayRef<GPUInfo> Table) {
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|   GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE };
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| 
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|   auto I = std::lower_bound(Table.begin(), Table.end(), Search,
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|     [](const GPUInfo &A, const GPUInfo &B) {
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|       return A.Kind < B.Kind;
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|     });
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| 
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|   if (I == Table.end())
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|     return nullptr;
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|   return I;
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| }
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| 
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| } // namespace
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| 
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| StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) {
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|   if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
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|     return Entry->CanonicalName;
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|   return "";
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| }
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| 
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| StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) {
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|   if (const auto *Entry = getArchEntry(AK, R600GPUs))
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|     return Entry->CanonicalName;
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|   return "";
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| }
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| 
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| AMDGPU::GPUKind llvm::AMDGPU::parseArchAMDGCN(StringRef CPU) {
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|   for (const auto &C : AMDGCNGPUs) {
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|     if (CPU == C.Name)
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|       return C.Kind;
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|   }
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| 
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|   return AMDGPU::GPUKind::GK_NONE;
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| }
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| 
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| AMDGPU::GPUKind llvm::AMDGPU::parseArchR600(StringRef CPU) {
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|   for (const auto &C : R600GPUs) {
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|     if (CPU == C.Name)
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|       return C.Kind;
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|   }
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| 
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|   return AMDGPU::GPUKind::GK_NONE;
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| }
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| 
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| unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) {
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|   if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
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|     return Entry->Features;
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|   return FEATURE_NONE;
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| }
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| 
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| unsigned AMDGPU::getArchAttrR600(GPUKind AK) {
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|   if (const auto *Entry = getArchEntry(AK, R600GPUs))
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|     return Entry->Features;
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|   return FEATURE_NONE;
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| }
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| 
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| void AMDGPU::fillValidArchListAMDGCN(SmallVectorImpl<StringRef> &Values) {
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|   // XXX: Should this only report unique canonical names?
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|   for (const auto &C : AMDGCNGPUs)
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|     Values.push_back(C.Name);
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| }
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| 
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| void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) {
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|   for (const auto &C : R600GPUs)
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|     Values.push_back(C.Name);
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| }
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| 
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| AMDGPU::IsaVersion AMDGPU::getIsaVersion(StringRef GPU) {
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|   AMDGPU::GPUKind AK = parseArchAMDGCN(GPU);
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|   if (AK == AMDGPU::GPUKind::GK_NONE) {
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|     if (GPU == "generic-hsa")
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|       return {7, 0, 0};
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|     if (GPU == "generic")
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|       return {6, 0, 0};
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|     return {0, 0, 0};
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|   }
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| 
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|   switch (AK) {
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|   case GK_GFX600:  return {6, 0, 0};
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|   case GK_GFX601:  return {6, 0, 1};
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|   case GK_GFX700:  return {7, 0, 0};
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|   case GK_GFX701:  return {7, 0, 1};
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|   case GK_GFX702:  return {7, 0, 2};
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|   case GK_GFX703:  return {7, 0, 3};
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|   case GK_GFX704:  return {7, 0, 4};
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|   case GK_GFX801:  return {8, 0, 1};
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|   case GK_GFX802:  return {8, 0, 2};
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|   case GK_GFX803:  return {8, 0, 3};
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|   case GK_GFX810:  return {8, 1, 0};
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|   case GK_GFX900:  return {9, 0, 0};
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|   case GK_GFX902:  return {9, 0, 2};
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|   case GK_GFX904:  return {9, 0, 4};
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|   case GK_GFX906:  return {9, 0, 6};
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|   case GK_GFX908:  return {9, 0, 8};
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|   case GK_GFX909:  return {9, 0, 9};
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|   case GK_GFX1010: return {10, 1, 0};
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|   case GK_GFX1011: return {10, 1, 1};
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|   case GK_GFX1012: return {10, 1, 2};
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|   default:         return {0, 0, 0};
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|   }
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| }
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