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368a977298
parameters rather than runtime parameters. There is only one user of these parameters and they are compile time for that user. Making these compile time seems to better reflect their intended usage as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205143 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
//===--- Allocator.cpp - Simple memory allocation abstraction -------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the BumpPtrAllocator interface.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Allocator.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Support/Memory.h"
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#include "llvm/Support/Recycler.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstring>
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namespace llvm {
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SlabAllocator::~SlabAllocator() { }
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MallocSlabAllocator::~MallocSlabAllocator() { }
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MemSlab *MallocSlabAllocator::Allocate(size_t Size) {
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MemSlab *Slab = (MemSlab*)Allocator.Allocate(Size, 0);
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Slab->Size = Size;
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Slab->NextPtr = 0;
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return Slab;
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}
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void MallocSlabAllocator::Deallocate(MemSlab *Slab) {
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Allocator.Deallocate(Slab);
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}
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void BumpPtrAllocatorBase::PrintStats() const {
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unsigned NumSlabs = 0;
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size_t TotalMemory = 0;
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for (MemSlab *Slab = CurSlab; Slab != 0; Slab = Slab->NextPtr) {
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TotalMemory += Slab->Size;
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++NumSlabs;
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}
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errs() << "\nNumber of memory regions: " << NumSlabs << '\n'
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<< "Bytes used: " << BytesAllocated << '\n'
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<< "Bytes allocated: " << TotalMemory << '\n'
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<< "Bytes wasted: " << (TotalMemory - BytesAllocated)
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<< " (includes alignment, etc)\n";
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}
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size_t BumpPtrAllocatorBase::getTotalMemory() const {
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size_t TotalMemory = 0;
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for (MemSlab *Slab = CurSlab; Slab != 0; Slab = Slab->NextPtr) {
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TotalMemory += Slab->Size;
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}
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return TotalMemory;
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}
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void PrintRecyclerStats(size_t Size,
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size_t Align,
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size_t FreeListSize) {
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errs() << "Recycler element size: " << Size << '\n'
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<< "Recycler element alignment: " << Align << '\n'
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<< "Number of elements free for recycling: " << FreeListSize << '\n';
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}
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}
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