Implement the extension GL_EXT_spirv_intrinsics

- Add support of SPIR-V execution mode qualifiers.
- Add support of SPIR-V storage class qualifier.
- Add support of SPIR-V decorate qualifiers.
- Add support of SPIR-V type specifier.
- Add support of SPIR-V intruction qualifiers.
- Add support of spirv_by_reference/spirv_literal parameter qualifier.
- Add shader stage macros introduced by this extension.

glslang/Include/SpirvIntrinsics.h

@@ -0,0 +1,136 @@
+//
+// Copyright(C) 2021 Advanced Micro Devices, 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.
+//
+
+#pragma once
+
+#ifndef GLSLANG_WEB
+
+//
+// GL_EXT_spirv_intrinsics
+//
+#include "Common.h"
+
+namespace glslang {
+
+class TIntermTyped;
+class TIntermConstantUnion;
+class TType;
+
+// SPIR-V requirements
+struct TSpirvRequirement {
+    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
+
+    // capability = [..]
+    TSet<TString> extensions;
+    // extension = [..]
+    TSet<int> capabilities;
+};
+
+// SPIR-V execution modes
+struct TSpirvExecutionMode {
+    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
+
+    // spirv_execution_mode
+    TMap<int, TVector<const TIntermConstantUnion*>> modes;
+    // spirv_execution_mode_id
+    TMap<int, TVector<const TIntermConstantUnion*> > modeIds;
+};
+
+// SPIR-V decorations
+struct TSpirvDecorate {
+    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
+
+    // spirv_decorate
+    TMap<int, TVector<const TIntermConstantUnion*> > decorates;
+    // spirv_decorate_id
+    TMap<int, TVector<const TIntermConstantUnion*> > decorateIds;
+    // spirv_decorate_string
+    TMap<int, TVector<const TIntermConstantUnion*> > decorateStrings;
+};
+
+// SPIR-V instruction
+struct TSpirvInstruction {
+    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
+
+    TSpirvInstruction() { set = ""; id = -1; }
+
+    bool operator==(const TSpirvInstruction& rhs) const { return set == rhs.set && id == rhs.id; }
+    bool operator!=(const TSpirvInstruction& rhs) const { return !operator==(rhs); }
+
+    // spirv_instruction
+    TString set;
+    int     id;
+};
+
+// SPIR-V type parameter
+struct TSpirvTypeParameter {
+    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
+
+    TSpirvTypeParameter(const TIntermConstantUnion* arg) { isConstant = true; constant = arg; }
+    TSpirvTypeParameter(const TType* arg) { isConstant = false; type = arg; }
+
+    bool operator==(const TSpirvTypeParameter& rhs) const
+    {
+        return isConstant == rhs.isConstant && ((isConstant && constant == rhs.constant) || (!isConstant && type == rhs.type));
+    }
+    bool operator!=(const TSpirvTypeParameter& rhs) const { return !operator==(rhs); }
+
+    bool isConstant;
+    union {
+        const TIntermConstantUnion* constant;
+        const TType* type;
+    };
+};
+
+typedef TVector<TSpirvTypeParameter> TSpirvTypeParameters;
+
+// SPIR-V type
+struct TSpirvType {
+    POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
+
+    bool operator==(const TSpirvType& rhs) const
+    {
+        return spirvInst == rhs.spirvInst && typeParams == rhs.typeParams;
+    }
+    bool operator!=(const TSpirvType& rhs) const { return !operator==(rhs); }
+
+    // spirv_type
+    TSpirvInstruction spirvInst;
+    TSpirvTypeParameters typeParams;
+};
+
+} // end namespace glslang
+
+#endif // GLSLANG_WEB