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//===-- ValueTypes.cpp - Implementation of MVT::ValueType methods ---------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and 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/CodeGen/ValueTypes.h"
#include "llvm/Type.h"
#include "llvm/DerivedTypes.h"
using namespace llvm;
/// MVT::getValueTypeString - This function returns value type as a string,
/// e.g. "i32".
const char *MVT::getValueTypeString(MVT::ValueType VT) {
switch (VT) {
default: assert(0 && "Invalid ValueType!");
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::isVoid:return "isVoid";
case MVT::Other: return "ch";
case MVT::Flag: return "flag";
case MVT::Vector:return "vec";
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::v4f32: return "v4f32";
case MVT::v2f64: return "v2f64";
}
}
/// MVT::getVectorType - Returns the ValueType that represents a vector
/// NumElements in length, where each element is of type VT. If there is no
/// ValueType that represents this vector, a ValueType of Other is returned.
///
MVT::ValueType MVT::getVectorType(ValueType VT, unsigned NumElements) {
switch (VT) {
default:
break;
case MVT::i8:
if (NumElements == 8) return MVT::v8i8;
if (NumElements == 16) return MVT::v16i8;
break;
case MVT::i16:
if (NumElements == 4) return MVT::v4i16;
if (NumElements == 8) return MVT::v8i16;
break;
case MVT::i32:
if (NumElements == 2) return MVT::v2i32;
if (NumElements == 4) return MVT::v4i32;
break;
case MVT::i64:
if (NumElements == 1) return MVT::v1i64;
if (NumElements == 2) return MVT::v2i64;
break;
case MVT::f32:
if (NumElements == 2) return MVT::v2f32;
if (NumElements == 4) return MVT::v4f32;
break;
case MVT::f64:
if (NumElements == 2) return MVT::v2f64;
break;
}
return MVT::Other;
}
/// MVT::getTypeForValueType - This method returns an LLVM type corresponding
/// to the specified ValueType. Note that this will abort for types that cannot
/// be represented.
const Type *MVT::getTypeForValueType(MVT::ValueType VT) {
switch (VT) {
default: assert(0 && "ValueType does not correspond to LLVM type!");
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::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::v4f32: return VectorType::get(Type::FloatTy, 4);
case MVT::v2f64: return VectorType::get(Type::DoubleTy, 2);
}
}
/// MVT::getValueType - Return the value type corresponding to the specified
/// type. This returns all vectors as MVT::Vector and all pointers as
/// MVT::iPTR. If HandleUnknown is true, unknown types are returned as Other,
/// otherwise they are invalid.
MVT::ValueType MVT::getValueType(const Type *Ty, bool HandleUnknown) {
switch (Ty->getTypeID()) {
default:
if (HandleUnknown) return MVT::Other;
assert(0 && "Unknown type!");
case Type::VoidTyID:
return MVT::isVoid;
case Type::IntegerTyID:
switch (cast<IntegerType>(Ty)->getBitWidth()) {
default:
// FIXME: Return MVT::iANY.
if (HandleUnknown) return MVT::Other;
assert(0 && "Invalid width for value type");
case 1: return MVT::i1;
case 8: return MVT::i8;
case 16: return MVT::i16;
case 32: return MVT::i32;
case 64: return MVT::i64;
case 128: return MVT::i128;
}
break;
case Type::FloatTyID: return MVT::f32;
case Type::DoubleTyID: return MVT::f64;
case Type::PointerTyID: return MVT::iPTR;
case Type::VectorTyID: return MVT::Vector;
}
}
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