1 //===----------- ValueTypes.cpp - Implementation of MVT methods -----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements methods in the CodeGen/ValueTypes.h header.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/ADT/StringExtras.h"
15 #include "llvm/CodeGen/ValueTypes.h"
16 #include "llvm/Type.h"
17 #include "llvm/DerivedTypes.h"
20 /// getMVTString - This function returns value type as a string, e.g. "i32".
21 std::string MVT::getMVTString() const {
25 return "v" + utostr(getVectorNumElements()) +
26 getVectorElementType().getMVTString();
28 return "i" + utostr(getSizeInBits());
29 assert(0 && "Invalid MVT!");
31 case MVT::i1: return "i1";
32 case MVT::i8: return "i8";
33 case MVT::i16: return "i16";
34 case MVT::i32: return "i32";
35 case MVT::i64: return "i64";
36 case MVT::i128: return "i128";
37 case MVT::f32: return "f32";
38 case MVT::f64: return "f64";
39 case MVT::f80: return "f80";
40 case MVT::f128: return "f128";
41 case MVT::ppcf128: return "ppcf128";
42 case MVT::isVoid: return "isVoid";
43 case MVT::Other: return "ch";
44 case MVT::Flag: return "flag";
45 case MVT::v8i8: return "v8i8";
46 case MVT::v4i16: return "v4i16";
47 case MVT::v2i32: return "v2i32";
48 case MVT::v1i64: return "v1i64";
49 case MVT::v16i8: return "v16i8";
50 case MVT::v8i16: return "v8i16";
51 case MVT::v4i32: return "v4i32";
52 case MVT::v2i64: return "v2i64";
53 case MVT::v2f32: return "v2f32";
54 case MVT::v4f32: return "v4f32";
55 case MVT::v2f64: return "v2f64";
56 case MVT::v3i32: return "v3i32";
57 case MVT::v3f32: return "v3f32";
61 /// getTypeForMVT - This method returns an LLVM type corresponding to the
62 /// specified MVT. For integer types, this returns an unsigned type. Note
63 /// that this will abort for types that cannot be represented.
64 const Type *MVT::getTypeForMVT() const {
68 return VectorType::get(getVectorElementType().getTypeForMVT(),
69 getVectorNumElements());
71 return IntegerType::get(getSizeInBits());
72 assert(0 && "MVT does not correspond to LLVM type!");
74 case MVT::isVoid: return Type::VoidTy;
75 case MVT::i1: return Type::Int1Ty;
76 case MVT::i8: return Type::Int8Ty;
77 case MVT::i16: return Type::Int16Ty;
78 case MVT::i32: return Type::Int32Ty;
79 case MVT::i64: return Type::Int64Ty;
80 case MVT::i128: return IntegerType::get(128);
81 case MVT::f32: return Type::FloatTy;
82 case MVT::f64: return Type::DoubleTy;
83 case MVT::f80: return Type::X86_FP80Ty;
84 case MVT::f128: return Type::FP128Ty;
85 case MVT::ppcf128: return Type::PPC_FP128Ty;
86 case MVT::v8i8: return VectorType::get(Type::Int8Ty, 8);
87 case MVT::v4i16: return VectorType::get(Type::Int16Ty, 4);
88 case MVT::v2i32: return VectorType::get(Type::Int32Ty, 2);
89 case MVT::v1i64: return VectorType::get(Type::Int64Ty, 1);
90 case MVT::v16i8: return VectorType::get(Type::Int8Ty, 16);
91 case MVT::v8i16: return VectorType::get(Type::Int16Ty, 8);
92 case MVT::v4i32: return VectorType::get(Type::Int32Ty, 4);
93 case MVT::v2i64: return VectorType::get(Type::Int64Ty, 2);
94 case MVT::v2f32: return VectorType::get(Type::FloatTy, 2);
95 case MVT::v4f32: return VectorType::get(Type::FloatTy, 4);
96 case MVT::v2f64: return VectorType::get(Type::DoubleTy, 2);
97 case MVT::v3i32: return VectorType::get(Type::Int32Ty, 3);
98 case MVT::v3f32: return VectorType::get(Type::FloatTy, 3);
102 /// getMVT - Return the value type corresponding to the specified type. This
103 /// returns all pointers as MVT::iPTR. If HandleUnknown is true, unknown types
104 /// are returned as Other, otherwise they are invalid.
105 MVT MVT::getMVT(const Type *Ty, bool HandleUnknown){
106 switch (Ty->getTypeID()) {
108 if (HandleUnknown) return MVT::Other;
109 assert(0 && "Unknown type!");
113 case Type::IntegerTyID:
114 return getIntegerVT(cast<IntegerType>(Ty)->getBitWidth());
115 case Type::FloatTyID: return MVT::f32;
116 case Type::DoubleTyID: return MVT::f64;
117 case Type::X86_FP80TyID: return MVT::f80;
118 case Type::FP128TyID: return MVT::f128;
119 case Type::PPC_FP128TyID: return MVT::ppcf128;
120 case Type::PointerTyID: return MVT::iPTR;
121 case Type::VectorTyID: {
122 const VectorType *VTy = cast<VectorType>(Ty);
123 return getVectorVT(getMVT(VTy->getElementType(), false),
124 VTy->getNumElements());