llvm/lib/CodeGenTypes/LowLevelType.cpp

   1 //===-- llvm/CodeGenTypes/LowLevelType.cpp
   2 //---------------------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   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/CodeGenTypes/LowLevelType.h"
  16 #include "llvm/Support/raw_ostream.h"
  17 using namespace llvm;
  18
  19 LLT::LLT(MVT VT) {
  20   if (VT.isVector()) {
  21     bool asVector = VT.getVectorMinNumElements() > 1 || VT.isScalableVector();
  22     init(/*IsPointer=*/false, asVector, /*IsScalar=*/!asVector,
  23          VT.getVectorElementCount(), VT.getVectorElementType().getSizeInBits(),
  24          /*AddressSpace=*/0);
  25   } else if (VT.isValid() && !VT.isScalableTargetExtVT()) {
  26     // Aggregates are no different from real scalars as far as GlobalISel is
  27     // concerned.
  28     init(/*IsPointer=*/false, /*IsVector=*/false, /*IsScalar=*/true,
  29          ElementCount::getFixed(0), VT.getSizeInBits(), /*AddressSpace=*/0);
  30   } else {
  31     IsScalar = false;
  32     IsPointer = false;
  33     IsVector = false;
  34     RawData = 0;
  35   }
  36 }
  37
  38 void LLT::print(raw_ostream &OS) const {
  39   if (isVector()) {
  40     OS << "<";
  41     OS << getElementCount() << " x " << getElementType() << ">";
  42   } else if (isPointer())
  43     OS << "p" << getAddressSpace();
  44   else if (isValid()) {
  45     assert(isScalar() && "unexpected type");
  46     OS << "s" << getScalarSizeInBits();
  47   } else
  48     OS << "LLT_invalid";
  49 }
  50
  51 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  52 LLVM_DUMP_METHOD void LLT::dump() const {
  53   print(dbgs());
  54   dbgs() << '\n';
  55 }
  56 #endif
  57
  58 const constexpr LLT::BitFieldInfo LLT::ScalarSizeFieldInfo;
  59 const constexpr LLT::BitFieldInfo LLT::PointerSizeFieldInfo;
  60 const constexpr LLT::BitFieldInfo LLT::PointerAddressSpaceFieldInfo;
  61 const constexpr LLT::BitFieldInfo LLT::VectorElementsFieldInfo;
  62 const constexpr LLT::BitFieldInfo LLT::VectorScalableFieldInfo;