ICStubSpace.h (1185B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: set ts=8 sts=2 et sw=2 tw=80: 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef jit_ICStubSpace_h 8 #define jit_ICStubSpace_h 9 10 #include "ds/LifoAlloc.h" 11 12 namespace js { 13 namespace jit { 14 15 // ICStubSpace is an abstraction for allocation policy and storage for CacheIR 16 // stub data. Each JitZone has a single ICStubSpace. 17 class ICStubSpace { 18 static constexpr size_t DefaultChunkSize = 4096; 19 LifoAlloc allocator_{DefaultChunkSize, js::BackgroundMallocArena}; 20 21 public: 22 inline void* alloc(size_t size) { return allocator_.alloc(size); } 23 24 JS_DECLARE_NEW_METHODS(allocate, alloc, inline) 25 26 void freeAllAfterMinorGC(JS::Zone* zone); 27 28 void transferFrom(ICStubSpace& other) { 29 allocator_.transferFrom(&other.allocator_); 30 } 31 32 size_t sizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf) const { 33 return allocator_.sizeOfExcludingThis(mallocSizeOf); 34 } 35 }; 36 37 } // namespace jit 38 } // namespace js 39 40 #endif /* jit_ICStubSpace_h */