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Current Path: /usr/src/contrib/llvm-project/clang/lib/Sema

usr / src / contrib / llvm-project / clang / lib / Sema /

📁 ..
📄 AnalysisBasedWarnings.cpp(83.16 KB)
📄 CodeCompleteConsumer.cpp(22.58 KB)
📄 CoroutineStmtBuilder.h(2.34 KB)
📄 DeclSpec.cpp(52.98 KB)
📄 DelayedDiagnostic.cpp(2.46 KB)
📄 IdentifierResolver.cpp(12.75 KB)
📄 JumpDiagnostics.cpp(37.08 KB)
📄 MultiplexExternalSemaSource.cpp(11.97 KB)
📄 OpenCLBuiltins.td(74.48 KB)
📄 ParsedAttr.cpp(6.91 KB)
📄 Scope.cpp(6.24 KB)
📄 ScopeInfo.cpp(8.02 KB)
📄 Sema.cpp(92.56 KB)
📄 SemaAccess.cpp(70.03 KB)
📄 SemaAttr.cpp(39.44 KB)
📄 SemaAvailability.cpp(35.52 KB)
📄 SemaCUDA.cpp(32.46 KB)
📄 SemaCXXScopeSpec.cpp(42.62 KB)
📄 SemaCast.cpp(117.77 KB)
📄 SemaChecking.cpp(580.53 KB)
📄 SemaCodeComplete.cpp(357.59 KB)
📄 SemaConcept.cpp(41.79 KB)
📄 SemaConsumer.cpp(464 B)
📄 SemaCoroutine.cpp(61.87 KB)
📄 SemaDecl.cpp(711.18 KB)
📄 SemaDeclAttr.cpp(266.6 KB)
📄 SemaDeclCXX.cpp(674.92 KB)
📄 SemaDeclObjC.cpp(208.27 KB)
📄 SemaExceptionSpec.cpp(58.64 KB)
📄 SemaExpr.cpp(744.15 KB)
📄 SemaExprCXX.cpp(343.26 KB)
📄 SemaExprMember.cpp(73.07 KB)
📄 SemaExprObjC.cpp(184.87 KB)
📄 SemaFixItUtils.cpp(7.49 KB)
📄 SemaInit.cpp(392.01 KB)
📄 SemaLambda.cpp(80.53 KB)
📄 SemaLookup.cpp(202.16 KB)
📄 SemaModule.cpp(27.05 KB)
📄 SemaObjCProperty.cpp(119.38 KB)
📄 SemaOpenMP.cpp(760.99 KB)
📄 SemaOverload.cpp(596.12 KB)
📄 SemaPseudoObject.cpp(64.4 KB)
📄 SemaSYCL.cpp(2 KB)
📄 SemaStmt.cpp(167.23 KB)
📄 SemaStmtAsm.cpp(36.06 KB)
📄 SemaStmtAttr.cpp(14.59 KB)
📄 SemaTemplate.cpp(438.46 KB)
📄 SemaTemplateDeduction.cpp(247.26 KB)
📄 SemaTemplateInstantiate.cpp(150.48 KB)
📄 SemaTemplateInstantiateDecl.cpp(240.7 KB)
📄 SemaTemplateVariadic.cpp(44.44 KB)
📄 SemaType.cpp(332.48 KB)
📄 TreeTransform.h(554.25 KB)
📄 TypeLocBuilder.cpp(5.17 KB)
📄 TypeLocBuilder.h(4.5 KB)
📄 UsedDeclVisitor.h(3.33 KB)

Editing: TypeLocBuilder.cpp

//===--- TypeLocBuilder.cpp - Type Source Info collector ------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
//  This files defines TypeLocBuilder, a class for building TypeLocs
//  bottom-up.
//
//===----------------------------------------------------------------------===//

#include "TypeLocBuilder.h"

using namespace clang;

void TypeLocBuilder::pushFullCopy(TypeLoc L) {
  size_t Size = L.getFullDataSize();
  reserve(Size);

SmallVector<TypeLoc, 4> TypeLocs;
  TypeLoc CurTL = L;
  while (CurTL) {
    TypeLocs.push_back(CurTL);
    CurTL = CurTL.getNextTypeLoc();
  }

for (unsigned i = 0, e = TypeLocs.size(); i < e; ++i) {
    TypeLoc CurTL = TypeLocs[e-i-1];
    switch (CurTL.getTypeLocClass()) {
#define ABSTRACT_TYPELOC(CLASS, PARENT)
#define TYPELOC(CLASS, PARENT) \
    case TypeLoc::CLASS: { \
      CLASS##TypeLoc NewTL = push<class CLASS##TypeLoc>(CurTL.getType()); \
      memcpy(NewTL.getOpaqueData(), CurTL.getOpaqueData(), NewTL.getLocalDataSize()); \
      break; \
    }
#include "clang/AST/TypeLocNodes.def"
    }
  }
}

void TypeLocBuilder::grow(size_t NewCapacity) {
  assert(NewCapacity > Capacity);

// Allocate the new buffer and copy the old data into it.
  char *NewBuffer = new char[NewCapacity];
  unsigned NewIndex = Index + NewCapacity - Capacity;
  memcpy(&NewBuffer[NewIndex],
         &Buffer[Index],
         Capacity - Index);

if (Buffer != InlineBuffer)
    delete[] Buffer;

Buffer = NewBuffer;
  Capacity = NewCapacity;
  Index = NewIndex;
}

TypeLoc TypeLocBuilder::pushImpl(QualType T, size_t LocalSize, unsigned LocalAlignment) {
#ifndef NDEBUG
  QualType TLast = TypeLoc(T, nullptr).getNextTypeLoc().getType();
  assert(TLast == LastTy &&
         "mismatch between last type and new type's inner type");
  LastTy = T;
#endif

assert(LocalAlignment <= BufferMaxAlignment && "Unexpected alignment");

// If we need to grow, grow by a factor of 2.
  if (LocalSize > Index) {
    size_t RequiredCapacity = Capacity + (LocalSize - Index);
    size_t NewCapacity = Capacity * 2;
    while (RequiredCapacity > NewCapacity)
      NewCapacity *= 2;
    grow(NewCapacity);
  }

// Because we're adding elements to the TypeLoc backwards, we have to
  // do some extra work to keep everything aligned appropriately.
  // FIXME: This algorithm is a absolute mess because every TypeLoc returned
  // needs to be valid.  Partial TypeLocs are a terrible idea.
  // FIXME: 4 and 8 are sufficient at the moment, but it's pretty ugly to
  // hardcode them.
  if (LocalAlignment == 4) {
    if (NumBytesAtAlign8 == 0) {
      NumBytesAtAlign4 += LocalSize;
    } else {
      unsigned Padding = NumBytesAtAlign4 % 8;
      if (Padding == 0) {
        if (LocalSize % 8 == 0) {
          // Everything is set: there's no padding and we don't need to add
          // any.
        } else {
          assert(LocalSize % 8 == 4);
          // No existing padding; add in 4 bytes padding
          memmove(&Buffer[Index - 4], &Buffer[Index], NumBytesAtAlign4);
          Index -= 4;
        }
      } else {
        assert(Padding == 4);
        if (LocalSize % 8 == 0) {
          // Everything is set: there's 4 bytes padding and we don't need
          // to add any.
        } else {
          assert(LocalSize % 8 == 4);
          // There are 4 bytes padding, but we don't need any; remove it.
          memmove(&Buffer[Index + 4], &Buffer[Index], NumBytesAtAlign4);
          Index += 4;
        }
      }
      NumBytesAtAlign4 += LocalSize;
    }
  } else if (LocalAlignment == 8) {
    if (NumBytesAtAlign8 == 0) {
      // We have not seen any 8-byte aligned element yet. We insert a padding
      // only if the new Index is not 8-byte-aligned.
      if ((Index - LocalSize) % 8 != 0) {
        memmove(&Buffer[Index - 4], &Buffer[Index], NumBytesAtAlign4);
        Index -= 4;
      }
    } else {
      unsigned Padding = NumBytesAtAlign4 % 8;
      if (Padding == 0) {
        if (LocalSize % 8 == 0) {
          // Everything is set: there's no padding and we don't need to add
          // any.
        } else {
          assert(LocalSize % 8 == 4);
          // No existing padding; add in 4 bytes padding
          memmove(&Buffer[Index - 4], &Buffer[Index], NumBytesAtAlign4);
          Index -= 4;
        }
      } else {
        assert(Padding == 4);
        if (LocalSize % 8 == 0) {
          // Everything is set: there's 4 bytes padding and we don't need
          // to add any.
        } else {
          assert(LocalSize % 8 == 4);
          // There are 4 bytes padding, but we don't need any; remove it.
          memmove(&Buffer[Index + 4], &Buffer[Index], NumBytesAtAlign4);
          Index += 4;
        }
      }
    }

// Forget about any padding.
    NumBytesAtAlign4 = 0;
    NumBytesAtAlign8 += LocalSize;
  } else {
    assert(LocalSize == 0);
  }

Index -= LocalSize;

assert(Capacity - Index == TypeLoc::getFullDataSizeForType(T) &&
         "incorrect data size provided to CreateTypeSourceInfo!");

return getTemporaryTypeLoc(T);
}

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Editing: TypeLocBuilder.cpp

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