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https://github.com/c64scene-ar/llvm-6502.git
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bb58b9c3c0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36528 91177308-0d34-0410-b5e6-96231b3b80d8
145 lines
5.0 KiB
C++
145 lines
5.0 KiB
C++
//===-- ValueTypes.cpp - Implementation of MVT::ValueType methods ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements methods in the CodeGen/ValueTypes.h header.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/ValueTypes.h"
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#include "llvm/Type.h"
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#include "llvm/DerivedTypes.h"
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using namespace llvm;
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/// MVT::getValueTypeString - This function returns value type as a string,
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/// e.g. "i32".
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const char *MVT::getValueTypeString(MVT::ValueType VT) {
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switch (VT) {
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default: assert(0 && "Invalid ValueType!");
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case MVT::i1: return "i1";
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case MVT::i8: return "i8";
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case MVT::i16: return "i16";
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case MVT::i32: return "i32";
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case MVT::i64: return "i64";
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case MVT::i128: return "i128";
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case MVT::f32: return "f32";
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case MVT::f64: return "f64";
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case MVT::f80: return "f80";
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case MVT::f128: return "f128";
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case MVT::isVoid:return "isVoid";
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case MVT::Other: return "ch";
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case MVT::Flag: return "flag";
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case MVT::Vector:return "vec";
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case MVT::v8i8: return "v8i8";
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case MVT::v4i16: return "v4i16";
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case MVT::v2i32: return "v2i32";
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case MVT::v1i64: return "v1i64";
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case MVT::v16i8: return "v16i8";
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case MVT::v8i16: return "v8i16";
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case MVT::v4i32: return "v4i32";
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case MVT::v2i64: return "v2i64";
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case MVT::v4f32: return "v4f32";
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case MVT::v2f64: return "v2f64";
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}
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}
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/// MVT::getVectorType - Returns the ValueType that represents a vector
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/// NumElements in length, where each element is of type VT. If there is no
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/// ValueType that represents this vector, a ValueType of Other is returned.
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///
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MVT::ValueType MVT::getVectorType(ValueType VT, unsigned NumElements) {
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switch (VT) {
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default:
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break;
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case MVT::i8:
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if (NumElements == 8) return MVT::v8i8;
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if (NumElements == 16) return MVT::v16i8;
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break;
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case MVT::i16:
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if (NumElements == 4) return MVT::v4i16;
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if (NumElements == 8) return MVT::v8i16;
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break;
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case MVT::i32:
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if (NumElements == 2) return MVT::v2i32;
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if (NumElements == 4) return MVT::v4i32;
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break;
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case MVT::i64:
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if (NumElements == 1) return MVT::v1i64;
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if (NumElements == 2) return MVT::v2i64;
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break;
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case MVT::f32:
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if (NumElements == 2) return MVT::v2f32;
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if (NumElements == 4) return MVT::v4f32;
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break;
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case MVT::f64:
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if (NumElements == 2) return MVT::v2f64;
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break;
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}
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return MVT::Other;
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}
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/// MVT::getTypeForValueType - This method returns an LLVM type corresponding
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/// to the specified ValueType. Note that this will abort for types that cannot
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/// be represented.
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const Type *MVT::getTypeForValueType(MVT::ValueType VT) {
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switch (VT) {
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default: assert(0 && "ValueType does not correspond to LLVM type!");
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case MVT::isVoid:return Type::VoidTy;
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case MVT::i1: return Type::Int1Ty;
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case MVT::i8: return Type::Int8Ty;
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case MVT::i16: return Type::Int16Ty;
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case MVT::i32: return Type::Int32Ty;
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case MVT::i64: return Type::Int64Ty;
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case MVT::i128: return IntegerType::get(128);
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case MVT::f32: return Type::FloatTy;
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case MVT::f64: return Type::DoubleTy;
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case MVT::v8i8: return VectorType::get(Type::Int8Ty, 8);
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case MVT::v4i16: return VectorType::get(Type::Int16Ty, 4);
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case MVT::v2i32: return VectorType::get(Type::Int32Ty, 2);
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case MVT::v1i64: return VectorType::get(Type::Int64Ty, 1);
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case MVT::v16i8: return VectorType::get(Type::Int8Ty, 16);
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case MVT::v8i16: return VectorType::get(Type::Int16Ty, 8);
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case MVT::v4i32: return VectorType::get(Type::Int32Ty, 4);
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case MVT::v2i64: return VectorType::get(Type::Int64Ty, 2);
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case MVT::v4f32: return VectorType::get(Type::FloatTy, 4);
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case MVT::v2f64: return VectorType::get(Type::DoubleTy, 2);
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}
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}
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/// MVT::getValueType - Return the value type corresponding to the specified
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/// type. This returns all vectors as MVT::Vector and all pointers as
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/// MVT::iPTR. If HandleUnknown is true, unknown types are returned as Other,
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/// otherwise they are invalid.
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MVT::ValueType MVT::getValueType(const Type *Ty, bool HandleUnknown) {
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switch (Ty->getTypeID()) {
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default:
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if (HandleUnknown) return MVT::Other;
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assert(0 && "Unknown type!");
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case Type::VoidTyID:
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return MVT::isVoid;
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case Type::IntegerTyID:
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switch (cast<IntegerType>(Ty)->getBitWidth()) {
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default:
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// FIXME: Return MVT::iANY.
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if (HandleUnknown) return MVT::Other;
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assert(0 && "Invalid width for value type");
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case 1: return MVT::i1;
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case 8: return MVT::i8;
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case 16: return MVT::i16;
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case 32: return MVT::i32;
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case 64: return MVT::i64;
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case 128: return MVT::i128;
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}
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break;
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case Type::FloatTyID: return MVT::f32;
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case Type::DoubleTyID: return MVT::f64;
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case Type::PointerTyID: return MVT::iPTR;
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case Type::VectorTyID: return MVT::Vector;
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}
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}
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