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diff --git a/src/3rdparty/glslang/SPIRV/SpvTools.h b/src/3rdparty/glslang/SPIRV/SpvTools.h
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+//
+// Copyright (C) 2014-2016 LunarG, Inc.
+// Copyright (C) 2018 Google, Inc.
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+//    Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//
+//    Redistributions in binary form must reproduce the above
+//    copyright notice, this list of conditions and the following
+//    disclaimer in the documentation and/or other materials provided
+//    with the distribution.
+//
+//    Neither the name of 3Dlabs Inc. Ltd. nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+//
+// Call into SPIRV-Tools to disassemble, validate, and optimize.
+//
+
+#pragma once
+#ifndef GLSLANG_SPV_TOOLS_H
+#define GLSLANG_SPV_TOOLS_H
+
+#include <vector>
+#include <ostream>
+
+#include "../glslang/MachineIndependent/localintermediate.h"
+#include "Logger.h"
+
+namespace glslang {
+
+struct SpvOptions {
+    SpvOptions() : generateDebugInfo(false), disableOptimizer(true),
+        optimizeSize(false), disassemble(false), validate(false) { }
+    bool generateDebugInfo;
+    bool disableOptimizer;
+    bool optimizeSize;
+    bool disassemble;
+    bool validate;
+};
+
+#if ENABLE_OPT
+
+// Use the SPIRV-Tools disassembler to print SPIR-V.
+void SpirvToolsDisassemble(std::ostream& out, const std::vector<unsigned int>& spirv);
+
+// Apply the SPIRV-Tools validator to generated SPIR-V.
+void SpirvToolsValidate(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
+                        spv::SpvBuildLogger*);
+
+// Apply the SPIRV-Tools optimizer to generated SPIR-V, for the purpose of
+// legalizing HLSL SPIR-V.
+void SpirvToolsLegalize(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
+                        spv::SpvBuildLogger*, const SpvOptions*);
+
+#endif
+
+} // end namespace glslang
+
+#endif // GLSLANG_SPV_TOOLS_H