llvm/lib/CodeGen/LowLevelType.cpp

   1 //===-- llvm/CodeGen/LowLevelType.cpp -------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 /// \file This file implements the more header-heavy bits of the LLT class to
  10 /// avoid polluting users' namespaces.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/CodeGen/LowLevelType.h"
  15 #include "llvm/Support/raw_ostream.h"
  16 using namespace llvm;
  17
  18 LLT::LLT(MVT VT) {
  19   if (VT.isVector()) {
  20     bool asVector = VT.getVectorMinNumElements() > 1 || VT.isScalableVector();
  21     init(/*IsPointer=*/false, asVector, /*IsScalar=*/!asVector,
  22          VT.getVectorElementCount(), VT.getVectorElementType().getSizeInBits(),
  23          /*AddressSpace=*/0);
  24   } else if (VT.isValid() && !VT.isScalableTargetExtVT()) {
  25     // Aggregates are no different from real scalars as far as GlobalISel is
  26     // concerned.
  27     init(/*IsPointer=*/false, /*IsVector=*/false, /*IsScalar=*/true,
  28          ElementCount::getFixed(0), VT.getSizeInBits(), /*AddressSpace=*/0);
  29   } else {
  30     IsScalar = false;
  31     IsPointer = false;
  32     IsVector = false;
  33     RawData = 0;
  34   }
  35 }
  36
  37 void LLT::print(raw_ostream &OS) const {
  38   if (isVector()) {
  39     OS << "<";
  40     OS << getElementCount() << " x " << getElementType() << ">";
  41   } else if (isPointer())
  42     OS << "p" << getAddressSpace();
  43   else if (isValid()) {
  44     assert(isScalar() && "unexpected type");
  45     OS << "s" << getScalarSizeInBits();
  46   } else
  47     OS << "LLT_invalid";
  48 }
  49
  50 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  51 LLVM_DUMP_METHOD void LLT::dump() const {
  52   print(dbgs());
  53   dbgs() << '\n';
  54 }
  55 #endif
  56
  57 const constexpr LLT::BitFieldInfo LLT::ScalarSizeFieldInfo;
  58 const constexpr LLT::BitFieldInfo LLT::PointerSizeFieldInfo;
  59 const constexpr LLT::BitFieldInfo LLT::PointerAddressSpaceFieldInfo;
  60 const constexpr LLT::BitFieldInfo LLT::VectorElementsFieldInfo;
  61 const constexpr LLT::BitFieldInfo LLT::VectorScalableFieldInfo;
  62 const constexpr LLT::BitFieldInfo LLT::VectorSizeFieldInfo;
  63 const constexpr LLT::BitFieldInfo LLT::PointerVectorElementsFieldInfo;
  64 const constexpr LLT::BitFieldInfo LLT::PointerVectorScalableFieldInfo;
  65 const constexpr LLT::BitFieldInfo LLT::PointerVectorSizeFieldInfo;
  66 const constexpr LLT::BitFieldInfo LLT::PointerVectorAddressSpaceFieldInfo;