lib/CodeGen/ValueTypes.cpp

   1 //===----------- ValueTypes.cpp - Implementation of EVT methods -----------===//
   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 #include "llvm/CodeGen/ValueTypes.h"
  10 #include "llvm/ADT/StringExtras.h"
  11 #include "llvm/IR/DerivedTypes.h"
  12 #include "llvm/IR/Type.h"
  13 #include "llvm/Support/ErrorHandling.h"
  14 using namespace llvm;
  15
  16 EVT EVT::changeExtendedTypeToInteger() const {
  17   LLVMContext &Context = LLVMTy->getContext();
  18   return getIntegerVT(Context, getSizeInBits());
  19 }
  20
  21 EVT EVT::changeExtendedVectorElementTypeToInteger() const {
  22   LLVMContext &Context = LLVMTy->getContext();
  23   EVT IntTy = getIntegerVT(Context, getScalarSizeInBits());
  24   return getVectorVT(Context, IntTy, getVectorNumElements());
  25 }
  26
  27 EVT EVT::getExtendedIntegerVT(LLVMContext &Context, unsigned BitWidth) {
  28   EVT VT;
  29   VT.LLVMTy = IntegerType::get(Context, BitWidth);
  30   assert(VT.isExtended() && "Type is not extended!");
  31   return VT;
  32 }
  33
  34 EVT EVT::getExtendedVectorVT(LLVMContext &Context, EVT VT,
  35                              unsigned NumElements) {
  36   EVT ResultVT;
  37   ResultVT.LLVMTy = VectorType::get(VT.getTypeForEVT(Context), NumElements);
  38   assert(ResultVT.isExtended() && "Type is not extended!");
  39   return ResultVT;
  40 }
  41
  42 bool EVT::isExtendedFloatingPoint() const {
  43   assert(isExtended() && "Type is not extended!");
  44   return LLVMTy->isFPOrFPVectorTy();
  45 }
  46
  47 bool EVT::isExtendedInteger() const {
  48   assert(isExtended() && "Type is not extended!");
  49   return LLVMTy->isIntOrIntVectorTy();
  50 }
  51
  52 bool EVT::isExtendedScalarInteger() const {
  53   assert(isExtended() && "Type is not extended!");
  54   return LLVMTy->isIntegerTy();
  55 }
  56
  57 bool EVT::isExtendedVector() const {
  58   assert(isExtended() && "Type is not extended!");
  59   return LLVMTy->isVectorTy();
  60 }
  61
  62 bool EVT::isExtended16BitVector() const {
  63   return isExtendedVector() && getExtendedSizeInBits() == 16;
  64 }
  65
  66 bool EVT::isExtended32BitVector() const {
  67   return isExtendedVector() && getExtendedSizeInBits() == 32;
  68 }
  69
  70 bool EVT::isExtended64BitVector() const {
  71   return isExtendedVector() && getExtendedSizeInBits() == 64;
  72 }
  73
  74 bool EVT::isExtended128BitVector() const {
  75   return isExtendedVector() && getExtendedSizeInBits() == 128;
  76 }
  77
  78 bool EVT::isExtended256BitVector() const {
  79   return isExtendedVector() && getExtendedSizeInBits() == 256;
  80 }
  81
  82 bool EVT::isExtended512BitVector() const {
  83   return isExtendedVector() && getExtendedSizeInBits() == 512;
  84 }
  85
  86 bool EVT::isExtended1024BitVector() const {
  87   return isExtendedVector() && getExtendedSizeInBits() == 1024;
  88 }
  89
  90 bool EVT::isExtended2048BitVector() const {
  91   return isExtendedVector() && getExtendedSizeInBits() == 2048;
  92 }
  93
  94 EVT EVT::getExtendedVectorElementType() const {
  95   assert(isExtended() && "Type is not extended!");
  96   return EVT::getEVT(cast<VectorType>(LLVMTy)->getElementType());
  97 }
  98
  99 unsigned EVT::getExtendedVectorNumElements() const {
 100   assert(isExtended() && "Type is not extended!");
 101   return cast<VectorType>(LLVMTy)->getNumElements();
 102 }
 103
 104 unsigned EVT::getExtendedSizeInBits() const {
 105   assert(isExtended() && "Type is not extended!");
 106   if (IntegerType *ITy = dyn_cast<IntegerType>(LLVMTy))
 107     return ITy->getBitWidth();
 108   if (VectorType *VTy = dyn_cast<VectorType>(LLVMTy))
 109     return VTy->getBitWidth();
 110   llvm_unreachable("Unrecognized extended type!");
 111 }
 112
 113 /// getEVTString - This function returns value type as a string, e.g. "i32".
 114 std::string EVT::getEVTString() const {
 115   switch (V.SimpleTy) {
 116   default:
 117     if (isVector())
 118       return "v" + utostr(getVectorNumElements()) +
 119              getVectorElementType().getEVTString();
 120     if (isInteger())
 121       return "i" + utostr(getSizeInBits());
 122     llvm_unreachable("Invalid EVT!");
 123   case MVT::i1:      return "i1";
 124   case MVT::i8:      return "i8";
 125   case MVT::i16:     return "i16";
 126   case MVT::i32:     return "i32";
 127   case MVT::i64:     return "i64";
 128   case MVT::i128:    return "i128";
 129   case MVT::f16:     return "f16";
 130   case MVT::f32:     return "f32";
 131   case MVT::f64:     return "f64";
 132   case MVT::f80:     return "f80";
 133   case MVT::f128:    return "f128";
 134   case MVT::ppcf128: return "ppcf128";
 135   case MVT::isVoid:  return "isVoid";
 136   case MVT::Other:   return "ch";
 137   case MVT::Glue:    return "glue";
 138   case MVT::x86mmx:  return "x86mmx";
 139   case MVT::v1i1:    return "v1i1";
 140   case MVT::v2i1:    return "v2i1";
 141   case MVT::v4i1:    return "v4i1";
 142   case MVT::v8i1:    return "v8i1";
 143   case MVT::v16i1:   return "v16i1";
 144   case MVT::v32i1:   return "v32i1";
 145   case MVT::v64i1:   return "v64i1";
 146   case MVT::v128i1:  return "v128i1";
 147   case MVT::v512i1:  return "v512i1";
 148   case MVT::v1024i1: return "v1024i1";
 149   case MVT::v1i8:    return "v1i8";
 150   case MVT::v2i8:    return "v2i8";
 151   case MVT::v4i8:    return "v4i8";
 152   case MVT::v8i8:    return "v8i8";
 153   case MVT::v16i8:   return "v16i8";
 154   case MVT::v32i8:   return "v32i8";
 155   case MVT::v64i8:   return "v64i8";
 156   case MVT::v128i8:  return "v128i8";
 157   case MVT::v256i8:  return "v256i8";
 158   case MVT::v1i16:   return "v1i16";
 159   case MVT::v2i16:   return "v2i16";
 160   case MVT::v4i16:   return "v4i16";
 161   case MVT::v8i16:   return "v8i16";
 162   case MVT::v16i16:  return "v16i16";
 163   case MVT::v32i16:  return "v32i16";
 164   case MVT::v64i16:  return "v64i16";
 165   case MVT::v128i16: return "v128i16";
 166   case MVT::v1i32:   return "v1i32";
 167   case MVT::v2i32:   return "v2i32";
 168   case MVT::v4i32:   return "v4i32";
 169   case MVT::v8i32:   return "v8i32";
 170   case MVT::v16i32:  return "v16i32";
 171   case MVT::v32i32:  return "v32i32";
 172   case MVT::v64i32:  return "v64i32";
 173   case MVT::v1i64:   return "v1i64";
 174   case MVT::v2i64:   return "v2i64";
 175   case MVT::v4i64:   return "v4i64";
 176   case MVT::v8i64:   return "v8i64";
 177   case MVT::v16i64:  return "v16i64";
 178   case MVT::v32i64:  return "v32i64";
 179   case MVT::v1i128:  return "v1i128";
 180   case MVT::v1f32:   return "v1f32";
 181   case MVT::v2f32:   return "v2f32";
 182   case MVT::v2f16:   return "v2f16";
 183   case MVT::v4f16:   return "v4f16";
 184   case MVT::v8f16:   return "v8f16";
 185   case MVT::v4f32:   return "v4f32";
 186   case MVT::v8f32:   return "v8f32";
 187   case MVT::v16f32:  return "v16f32";
 188   case MVT::v1f64:   return "v1f64";
 189   case MVT::v2f64:   return "v2f64";
 190   case MVT::v4f64:   return "v4f64";
 191   case MVT::v8f64:   return "v8f64";
 192   case MVT::Metadata:return "Metadata";
 193   case MVT::Untyped: return "Untyped";
 194   case MVT::ExceptRef: return "ExceptRef";
 195   }
 196 }
 197
 198 /// getTypeForEVT - This method returns an LLVM type corresponding to the
 199 /// specified EVT.  For integer types, this returns an unsigned type.  Note
 200 /// that this will abort for types that cannot be represented.
 201 Type *EVT::getTypeForEVT(LLVMContext &Context) const {
 202   switch (V.SimpleTy) {
 203   default:
 204     assert(isExtended() && "Type is not extended!");
 205     return LLVMTy;
 206   case MVT::isVoid:  return Type::getVoidTy(Context);
 207   case MVT::i1:      return Type::getInt1Ty(Context);
 208   case MVT::i8:      return Type::getInt8Ty(Context);
 209   case MVT::i16:     return Type::getInt16Ty(Context);
 210   case MVT::i32:     return Type::getInt32Ty(Context);
 211   case MVT::i64:     return Type::getInt64Ty(Context);
 212   case MVT::i128:    return IntegerType::get(Context, 128);
 213   case MVT::f16:     return Type::getHalfTy(Context);
 214   case MVT::f32:     return Type::getFloatTy(Context);
 215   case MVT::f64:     return Type::getDoubleTy(Context);
 216   case MVT::f80:     return Type::getX86_FP80Ty(Context);
 217   case MVT::f128:    return Type::getFP128Ty(Context);
 218   case MVT::ppcf128: return Type::getPPC_FP128Ty(Context);
 219   case MVT::x86mmx:  return Type::getX86_MMXTy(Context);
 220   case MVT::v1i1:    return VectorType::get(Type::getInt1Ty(Context), 1);
 221   case MVT::v2i1:    return VectorType::get(Type::getInt1Ty(Context), 2);
 222   case MVT::v4i1:    return VectorType::get(Type::getInt1Ty(Context), 4);
 223   case MVT::v8i1:    return VectorType::get(Type::getInt1Ty(Context), 8);
 224   case MVT::v16i1:   return VectorType::get(Type::getInt1Ty(Context), 16);
 225   case MVT::v32i1:   return VectorType::get(Type::getInt1Ty(Context), 32);
 226   case MVT::v64i1:   return VectorType::get(Type::getInt1Ty(Context), 64);
 227   case MVT::v128i1:  return VectorType::get(Type::getInt1Ty(Context), 128);
 228   case MVT::v512i1:  return VectorType::get(Type::getInt1Ty(Context), 512);
 229   case MVT::v1024i1: return VectorType::get(Type::getInt1Ty(Context), 1024);
 230   case MVT::v1i8:    return VectorType::get(Type::getInt8Ty(Context), 1);
 231   case MVT::v2i8:    return VectorType::get(Type::getInt8Ty(Context), 2);
 232   case MVT::v4i8:    return VectorType::get(Type::getInt8Ty(Context), 4);
 233   case MVT::v8i8:    return VectorType::get(Type::getInt8Ty(Context), 8);
 234   case MVT::v16i8:   return VectorType::get(Type::getInt8Ty(Context), 16);
 235   case MVT::v32i8:   return VectorType::get(Type::getInt8Ty(Context), 32);
 236   case MVT::v64i8:   return VectorType::get(Type::getInt8Ty(Context), 64);
 237   case MVT::v128i8:  return VectorType::get(Type::getInt8Ty(Context), 128);
 238   case MVT::v256i8:  return VectorType::get(Type::getInt8Ty(Context), 256);
 239   case MVT::v1i16:   return VectorType::get(Type::getInt16Ty(Context), 1);
 240   case MVT::v2i16:   return VectorType::get(Type::getInt16Ty(Context), 2);
 241   case MVT::v4i16:   return VectorType::get(Type::getInt16Ty(Context), 4);
 242   case MVT::v8i16:   return VectorType::get(Type::getInt16Ty(Context), 8);
 243   case MVT::v16i16:  return VectorType::get(Type::getInt16Ty(Context), 16);
 244   case MVT::v32i16:  return VectorType::get(Type::getInt16Ty(Context), 32);
 245   case MVT::v64i16:  return VectorType::get(Type::getInt16Ty(Context), 64);
 246   case MVT::v128i16: return VectorType::get(Type::getInt16Ty(Context), 128);
 247   case MVT::v1i32:   return VectorType::get(Type::getInt32Ty(Context), 1);
 248   case MVT::v2i32:   return VectorType::get(Type::getInt32Ty(Context), 2);
 249   case MVT::v4i32:   return VectorType::get(Type::getInt32Ty(Context), 4);
 250   case MVT::v8i32:   return VectorType::get(Type::getInt32Ty(Context), 8);
 251   case MVT::v16i32:  return VectorType::get(Type::getInt32Ty(Context), 16);
 252   case MVT::v32i32:  return VectorType::get(Type::getInt32Ty(Context), 32);
 253   case MVT::v64i32:  return VectorType::get(Type::getInt32Ty(Context), 64);
 254   case MVT::v1i64:   return VectorType::get(Type::getInt64Ty(Context), 1);
 255   case MVT::v2i64:   return VectorType::get(Type::getInt64Ty(Context), 2);
 256   case MVT::v4i64:   return VectorType::get(Type::getInt64Ty(Context), 4);
 257   case MVT::v8i64:   return VectorType::get(Type::getInt64Ty(Context), 8);
 258   case MVT::v16i64:  return VectorType::get(Type::getInt64Ty(Context), 16);
 259   case MVT::v32i64:  return VectorType::get(Type::getInt64Ty(Context), 32);
 260   case MVT::v1i128:  return VectorType::get(Type::getInt128Ty(Context), 1);
 261   case MVT::v2f16:   return VectorType::get(Type::getHalfTy(Context), 2);
 262   case MVT::v4f16:   return VectorType::get(Type::getHalfTy(Context), 4);
 263   case MVT::v8f16:   return VectorType::get(Type::getHalfTy(Context), 8);
 264   case MVT::v1f32:   return VectorType::get(Type::getFloatTy(Context), 1);
 265   case MVT::v2f32:   return VectorType::get(Type::getFloatTy(Context), 2);
 266   case MVT::v4f32:   return VectorType::get(Type::getFloatTy(Context), 4);
 267   case MVT::v8f32:   return VectorType::get(Type::getFloatTy(Context), 8);
 268   case MVT::v16f32:   return VectorType::get(Type::getFloatTy(Context), 16);
 269   case MVT::v1f64:   return VectorType::get(Type::getDoubleTy(Context), 1);
 270   case MVT::v2f64:   return VectorType::get(Type::getDoubleTy(Context), 2);
 271   case MVT::v4f64:   return VectorType::get(Type::getDoubleTy(Context), 4);
 272   case MVT::v8f64:   return VectorType::get(Type::getDoubleTy(Context), 8);
 273   case MVT::Metadata: return Type::getMetadataTy(Context);
 274  }
 275 }
 276
 277 /// Return the value type corresponding to the specified type.  This returns all
 278 /// pointers as MVT::iPTR.  If HandleUnknown is true, unknown types are returned
 279 /// as Other, otherwise they are invalid.
 280 MVT MVT::getVT(Type *Ty, bool HandleUnknown){
 281   switch (Ty->getTypeID()) {
 282   default:
 283     if (HandleUnknown) return MVT(MVT::Other);
 284     llvm_unreachable("Unknown type!");
 285   case Type::VoidTyID:
 286     return MVT::isVoid;
 287   case Type::IntegerTyID:
 288     return getIntegerVT(cast<IntegerType>(Ty)->getBitWidth());
 289   case Type::HalfTyID:      return MVT(MVT::f16);
 290   case Type::FloatTyID:     return MVT(MVT::f32);
 291   case Type::DoubleTyID:    return MVT(MVT::f64);
 292   case Type::X86_FP80TyID:  return MVT(MVT::f80);
 293   case Type::X86_MMXTyID:   return MVT(MVT::x86mmx);
 294   case Type::FP128TyID:     return MVT(MVT::f128);
 295   case Type::PPC_FP128TyID: return MVT(MVT::ppcf128);
 296   case Type::PointerTyID:   return MVT(MVT::iPTR);
 297   case Type::VectorTyID: {
 298     VectorType *VTy = cast<VectorType>(Ty);
 299     return getVectorVT(
 300       getVT(VTy->getElementType(), false), VTy->getNumElements());
 301   }
 302   }
 303 }
 304
 305 /// getEVT - Return the value type corresponding to the specified type.  This
 306 /// returns all pointers as MVT::iPTR.  If HandleUnknown is true, unknown types
 307 /// are returned as Other, otherwise they are invalid.
 308 EVT EVT::getEVT(Type *Ty, bool HandleUnknown){
 309   switch (Ty->getTypeID()) {
 310   default:
 311     return MVT::getVT(Ty, HandleUnknown);
 312   case Type::IntegerTyID:
 313     return getIntegerVT(Ty->getContext(), cast<IntegerType>(Ty)->getBitWidth());
 314   case Type::VectorTyID: {
 315     VectorType *VTy = cast<VectorType>(Ty);
 316     return getVectorVT(Ty->getContext(), getEVT(VTy->getElementType(), false),
 317                        VTy->getNumElements());
 318   }
 319   }
 320 }