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usr / src / contrib / llvm-project / clang / lib / AST / Interp /

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📄 Boolean.h(4.12 KB)
📄 ByteCodeEmitter.cpp(5.38 KB)
📄 ByteCodeEmitter.h(3.13 KB)
📄 ByteCodeExprGen.cpp(16.6 KB)
📄 ByteCodeExprGen.h(10.2 KB)
📄 ByteCodeGenError.cpp(483 B)
📄 ByteCodeGenError.h(1.36 KB)
📄 ByteCodeStmtGen.cpp(7.21 KB)
📄 ByteCodeStmtGen.h(2.39 KB)
📄 Context.cpp(3.28 KB)
📄 Context.h(2.39 KB)
📄 Descriptor.cpp(10.31 KB)
📄 Descriptor.h(7.82 KB)
📄 Disasm.cpp(1.95 KB)
📄 EvalEmitter.cpp(7.6 KB)
📄 EvalEmitter.h(3.7 KB)
📄 Frame.cpp(464 B)
📄 Frame.h(1.28 KB)
📄 Function.cpp(1.73 KB)
📄 Function.h(4.91 KB)
📄 Integral.h(8.38 KB)
📄 Interp.cpp(11.54 KB)
📄 Interp.h(30.64 KB)
📄 InterpBlock.cpp(1.91 KB)
📄 InterpBlock.h(4.11 KB)
📄 InterpFrame.cpp(5.32 KB)
📄 InterpFrame.h(4.54 KB)
📄 InterpStack.cpp(1.81 KB)
📄 InterpStack.h(3.43 KB)
📄 InterpState.cpp(2.03 KB)
📄 InterpState.h(3.29 KB)
📄 Opcode.h(817 B)
📄 Opcodes.td(11.02 KB)
📄 Pointer.cpp(4.97 KB)
📄 Pointer.h(11.08 KB)
📄 PrimType.cpp(648 B)
📄 PrimType.h(4.66 KB)
📄 Program.cpp(11.29 KB)
📄 Program.h(6.66 KB)
📄 Record.cpp(1.54 KB)
📄 Record.h(3.76 KB)
📄 Source.cpp(1.15 KB)
📄 Source.h(3.25 KB)
📄 State.cpp(5.34 KB)
📄 State.h(4.01 KB)

Editing: InterpStack.cpp

//===--- InterpStack.cpp - Stack implementation for the VM ------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include <cassert>
#include <cstdlib>
#include "InterpStack.h"

using namespace clang;
using namespace clang::interp;

InterpStack::~InterpStack() {
  clear();
}

void InterpStack::clear() {
  if (Chunk && Chunk->Next)
    free(Chunk->Next);
  if (Chunk)
    free(Chunk);
  Chunk = nullptr;
  StackSize = 0;
}

void *InterpStack::grow(size_t Size) {
  assert(Size < ChunkSize - sizeof(StackChunk) && "Object too large");

if (!Chunk || sizeof(StackChunk) + Chunk->size() + Size > ChunkSize) {
    if (Chunk && Chunk->Next) {
      Chunk = Chunk->Next;
    } else {
      StackChunk *Next = new (malloc(ChunkSize)) StackChunk(Chunk);
      if (Chunk)
        Chunk->Next = Next;
      Chunk = Next;
    }
  }

auto *Object = reinterpret_cast<void *>(Chunk->End);
  Chunk->End += Size;
  StackSize += Size;
  return Object;
}

void *InterpStack::peek(size_t Size) {
  assert(Chunk && "Stack is empty!");

StackChunk *Ptr = Chunk;
  while (Size > Ptr->size()) {
    Size -= Ptr->size();
    Ptr = Ptr->Prev;
    assert(Ptr && "Offset too large");
  }

return reinterpret_cast<void *>(Ptr->End - Size);
}

void InterpStack::shrink(size_t Size) {
  assert(Chunk && "Chunk is empty!");

while (Size > Chunk->size()) {
    Size -= Chunk->size();
    if (Chunk->Next) {
      free(Chunk->Next);
      Chunk->Next = nullptr;
    }
    Chunk->End = Chunk->start();
    Chunk = Chunk->Prev;
    assert(Chunk && "Offset too large");
  }

Chunk->End -= Size;
  StackSize -= Size;
}

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Editing: InterpStack.cpp

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