1 //===-- llvm/Support/LowLevelType.cpp -------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 /// \file This file implements the more header-heavy bits of the LLT class to
11 /// avoid polluting users' namespaces.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "llvm/Support/LowLevelTypeImpl.h"
16 #include "llvm/Support/raw_ostream.h"
17 using namespace llvm;
18 
LLT(MVT VT)19 LLT::LLT(MVT VT) {
20   if (VT.isVector()) {
21     init(/*isPointer=*/false, VT.getVectorNumElements() > 1,
22          VT.getVectorNumElements(), VT.getVectorElementType().getSizeInBits(),
23          /*AddressSpace=*/0);
24   } else if (VT.isValid()) {
25     // Aggregates are no different from real scalars as far as GlobalISel is
26     // concerned.
27     assert(VT.getSizeInBits() != 0 && "invalid zero-sized type");
28     init(/*isPointer=*/false, /*isVector=*/false, /*NumElements=*/0,
29          VT.getSizeInBits(), /*AddressSpace=*/0);
30   } else {
31     IsPointer = false;
32     IsVector = false;
33     RawData = 0;
34   }
35 }
36 
print(raw_ostream & OS) const37 void LLT::print(raw_ostream &OS) const {
38   if (isVector())
39     OS << "<" << getNumElements() << " x " << getElementType() << ">";
40   else if (isPointer())
41     OS << "p" << getAddressSpace();
42   else if (isValid()) {
43     assert(isScalar() && "unexpected type");
44     OS << "s" << getScalarSizeInBits();
45   } else
46     OS << "LLT_invalid";
47 }
48 
49 const constexpr LLT::BitFieldInfo LLT::ScalarSizeFieldInfo;
50 const constexpr LLT::BitFieldInfo LLT::PointerSizeFieldInfo;
51 const constexpr LLT::BitFieldInfo LLT::PointerAddressSpaceFieldInfo;
52 const constexpr LLT::BitFieldInfo LLT::VectorElementsFieldInfo;
53 const constexpr LLT::BitFieldInfo LLT::VectorSizeFieldInfo;
54 const constexpr LLT::BitFieldInfo LLT::PointerVectorElementsFieldInfo;
55 const constexpr LLT::BitFieldInfo LLT::PointerVectorSizeFieldInfo;
56 const constexpr LLT::BitFieldInfo LLT::PointerVectorAddressSpaceFieldInfo;
57