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//===----------- ValueTypes.cpp - Implementation of MVT methods -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements methods in the CodeGen/ValueTypes.h header.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringExtras.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/Type.h"
#include "llvm/DerivedTypes.h"
using namespace llvm;
/// getMVTString - This function returns value type as a string, e.g. "i32".
std::string MVT::getMVTString() const {
switch (V) {
default:
if (isVector())
return "v" + utostr(getVectorNumElements()) +
getVectorElementType().getMVTString();
if (isInteger())
return "i" + utostr(getSizeInBits());
assert(0 && "Invalid MVT!");
return "?";
case MVT::i1: return "i1";
case MVT::i8: return "i8";
case MVT::i16: return "i16";
case MVT::i32: return "i32";
case MVT::i64: return "i64";
case MVT::i128: return "i128";
case MVT::f32: return "f32";
case MVT::f64: return "f64";
case MVT::f80: return "f80";
case MVT::f128: return "f128";
case MVT::ppcf128: return "ppcf128";
case MVT::isVoid: return "isVoid";
case MVT::Other: return "ch";
case MVT::Flag: return "flag";
case MVT::v8i8: return "v8i8";
case MVT::v4i16: return "v4i16";
case MVT::v2i32: return "v2i32";
case MVT::v1i64: return "v1i64";
case MVT::v16i8: return "v16i8";
case MVT::v8i16: return "v8i16";
case MVT::v4i32: return "v4i32";
case MVT::v2i64: return "v2i64";
case MVT::v2f32: return "v2f32";
case MVT::v4f32: return "v4f32";
case MVT::v2f64: return "v2f64";
case MVT::v3i32: return "v3i32";
case MVT::v3f32: return "v3f32";
}
}
/// getTypeForMVT - This method returns an LLVM type corresponding to the
/// specified MVT. For integer types, this returns an unsigned type. Note
/// that this will abort for types that cannot be represented.
const Type *MVT::getTypeForMVT() const {
switch (V) {
default:
if (isVector())
return VectorType::get(getVectorElementType().getTypeForMVT(),
getVectorNumElements());
if (isInteger())
return IntegerType::get(getSizeInBits());
assert(0 && "MVT does not correspond to LLVM type!");
return Type::VoidTy;
case MVT::isVoid: return Type::VoidTy;
case MVT::i1: return Type::Int1Ty;
case MVT::i8: return Type::Int8Ty;
case MVT::i16: return Type::Int16Ty;
case MVT::i32: return Type::Int32Ty;
case MVT::i64: return Type::Int64Ty;
case MVT::i128: return IntegerType::get(128);
case MVT::f32: return Type::FloatTy;
case MVT::f64: return Type::DoubleTy;
case MVT::f80: return Type::X86_FP80Ty;
case MVT::f128: return Type::FP128Ty;
case MVT::ppcf128: return Type::PPC_FP128Ty;
case MVT::v8i8: return VectorType::get(Type::Int8Ty, 8);
case MVT::v4i16: return VectorType::get(Type::Int16Ty, 4);
case MVT::v2i32: return VectorType::get(Type::Int32Ty, 2);
case MVT::v1i64: return VectorType::get(Type::Int64Ty, 1);
case MVT::v16i8: return VectorType::get(Type::Int8Ty, 16);
case MVT::v8i16: return VectorType::get(Type::Int16Ty, 8);
case MVT::v4i32: return VectorType::get(Type::Int32Ty, 4);
case MVT::v2i64: return VectorType::get(Type::Int64Ty, 2);
case MVT::v2f32: return VectorType::get(Type::FloatTy, 2);
case MVT::v4f32: return VectorType::get(Type::FloatTy, 4);
case MVT::v2f64: return VectorType::get(Type::DoubleTy, 2);
case MVT::v3i32: return VectorType::get(Type::Int32Ty, 3);
case MVT::v3f32: return VectorType::get(Type::FloatTy, 3);
}
}
/// getMVT - Return the value type corresponding to the specified type. This
/// returns all pointers as MVT::iPTR. If HandleUnknown is true, unknown types
/// are returned as Other, otherwise they are invalid.
MVT MVT::getMVT(const Type *Ty, bool HandleUnknown){
switch (Ty->getTypeID()) {
default:
if (HandleUnknown) return MVT::Other;
assert(0 && "Unknown type!");
return MVT::isVoid;
case Type::VoidTyID:
return MVT::isVoid;
case Type::IntegerTyID:
return getIntegerVT(cast<IntegerType>(Ty)->getBitWidth());
case Type::FloatTyID: return MVT::f32;
case Type::DoubleTyID: return MVT::f64;
case Type::X86_FP80TyID: return MVT::f80;
case Type::FP128TyID: return MVT::f128;
case Type::PPC_FP128TyID: return MVT::ppcf128;
case Type::PointerTyID: return MVT::iPTR;
case Type::VectorTyID: {
const VectorType *VTy = cast<VectorType>(Ty);
return getVectorVT(getMVT(VTy->getElementType(), false),
VTy->getNumElements());
}
}
}
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