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diff --git a/gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/BreakVariableAliasingInInnerLoops.h b/gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/BreakVariableAliasingInInnerLoops.h
new file mode 100644
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--- /dev/null
+++ b/gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/BreakVariableAliasingInInnerLoops.h
@@ -0,0 +1,25 @@
+//
+// Copyright 2016 The ANGLE 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.
+//
+
+// BreakVariableAliasingInInnerLoops.h: To optimize simple assignments, the HLSL compiler frontend
+//      may record a variable as aliasing another. Sometimes the alias information gets garbled
+//      so we work around this issue by breaking the aliasing chain in inner loops.
+
+#ifndef COMPILER_TRANSLATOR_TREEOPS_D3D_BREAKVARIABLEALIASINGININNERLOOPS_H_
+#define COMPILER_TRANSLATOR_TREEOPS_D3D_BREAKVARIABLEALIASINGININNERLOOPS_H_
+
+#include "common/angleutils.h"
+
+namespace sh
+{
+class TCompiler;
+class TIntermNode;
+
+[[nodiscard]] bool BreakVariableAliasingInInnerLoops(TCompiler *compiler, TIntermNode *root);
+
+}  // namespace sh
+
+#endif  // COMPILER_TRANSLATOR_TREEOPS_D3D_BREAKVARIABLEALIASINGININNERLOOPS_H_