Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/js/src/jit/ICStubSpace.h b/js/src/jit/ICStubSpace.h
new file mode 100644
index 0000000000..09dde6da4e
--- /dev/null
+++ b/js/src/jit/ICStubSpace.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef jit_ICStubSpace_h
+#define jit_ICStubSpace_h
+
+#include "ds/LifoAlloc.h"
+
+namespace js {
+namespace jit {
+
+// ICStubSpace is an abstraction for allocation policy and storage for CacheIR
+// stub data. Each JitZone has a single ICStubSpace.
+class ICStubSpace {
+  static constexpr size_t DefaultChunkSize = 4096;
+  LifoAlloc allocator_{DefaultChunkSize};
+
+ public:
+  inline void* alloc(size_t size) { return allocator_.alloc(size); }
+
+  JS_DECLARE_NEW_METHODS(allocate, alloc, inline)
+
+  void freeAllAfterMinorGC(JS::Zone* zone);
+
+  void transferFrom(ICStubSpace& other) {
+    allocator_.transferFrom(&other.allocator_);
+  }
+
+  size_t sizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf) const {
+    return allocator_.sizeOfExcludingThis(mallocSizeOf);
+  }
+};
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_ICStubSpace_h */