Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 30 insertions, 0 deletions

diff --git a/js/src/irregexp/imported/regexp-bytecode-peephole.h b/js/src/irregexp/imported/regexp-bytecode-peephole.h
new file mode 100644
index 0000000000..5b8a0c7b4b
--- /dev/null
+++ b/js/src/irregexp/imported/regexp-bytecode-peephole.h
@@ -0,0 +1,30 @@
+// Copyright 2019 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_REGEXP_REGEXP_BYTECODE_PEEPHOLE_H_
+#define V8_REGEXP_REGEXP_BYTECODE_PEEPHOLE_H_
+
+#include "irregexp/RegExpShim.h"
+
+namespace v8 {
+namespace internal {
+
+class ByteArray;
+
+// Peephole optimization for regexp interpreter bytecode.
+// Pre-defined bytecode sequences occuring in the bytecode generated by the
+// RegExpBytecodeGenerator can be optimized into a single bytecode.
+class RegExpBytecodePeepholeOptimization : public AllStatic {
+ public:
+  // Performs peephole optimization on the given bytecode and returns the
+  // optimized bytecode.
+  static Handle<ByteArray> OptimizeBytecode(
+      Isolate* isolate, Zone* zone, Handle<String> source, const byte* bytecode,
+      int length, const ZoneUnorderedMap<int, int>& jump_edges);
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_REGEXP_REGEXP_BYTECODE_PEEPHOLE_H_