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-rw-r--r--js/src/jit/Label.cpp29
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diff --git a/js/src/jit/Label.cpp b/js/src/jit/Label.cpp
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+/* -*- 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/. */
+
+#include "jit/Label.h"
+
+#include "mozilla/Assertions.h"
+
+#include "jit/CompileWrappers.h"
+#include "jit/JitContext.h"
+#include "js/Utility.h"
+
+namespace js::jit {
+
+#ifdef DEBUG
+Label::~Label() {
+ // The assertion below doesn't hold if an error occurred.
+ JitContext* context = MaybeGetJitContext();
+ bool hadError =
+ js::oom::HadSimulatedOOM() ||
+ (context && context->runtime && context->runtime->hadOutOfMemory()) ||
+ (context && !context->runtime && context->hasOOM());
+ MOZ_ASSERT_IF(!hadError, !used());
+}
+#endif
+
+} // namespace js::jit