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-rw-r--r--clang/lib/AST/Interp/InterpStack.cpp77
1 files changed, 0 insertions, 77 deletions
diff --git a/clang/lib/AST/Interp/InterpStack.cpp b/clang/lib/AST/Interp/InterpStack.cpp
deleted file mode 100644
index f159fe1955f..00000000000
--- a/clang/lib/AST/Interp/InterpStack.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-//===--- 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 "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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