Enable spriv-opt on spirv (#1076)

* Add spirv-tools module and set ENABLE_OPT to be true

* Add spirv-headers dependency

* Build spirv-opt into glslang project

* Add optimization pass

* Add generated spirv-opt files
Modify solution to avoid obj file conflicts

* Add optimization pass to SPIR-V generation

* Don't pass additional optimizer options to glslang

* Build spirv-opt in Linux

1 files changed, 137 insertions, 0 deletions

diff --git a/external/spirv-tools-generated/DebugInfo.h b/external/spirv-tools-generated/DebugInfo.h
new file mode 100644
index 000000000..0b3406cc8
--- /dev/null
+++ b/external/spirv-tools-generated/DebugInfo.h
@@ -0,0 +1,137 @@
+// Copyright (c) 2017 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and/or associated documentation files (the "Materials"),
+// to deal in the Materials without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Materials, and to permit persons to whom the
+// Materials are furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS
+// STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND
+// HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/ 
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS
+// IN THE MATERIALS.
+
+#ifndef SPIRV_EXTINST_DebugInfo_H_
+#define SPIRV_EXTINST_DebugInfo_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum { DebugInfoVersion = 100, DebugInfoVersion_BitWidthPadding = 0x7fffffff };
+enum { DebugInfoRevision = 1, DebugInfoRevision_BitWidthPadding = 0x7fffffff };
+
+enum DebugInfoInstructions {
+    DebugInfoDebugInfoNone = 0,
+    DebugInfoDebugCompilationUnit = 1,
+    DebugInfoDebugTypeBasic = 2,
+    DebugInfoDebugTypePointer = 3,
+    DebugInfoDebugTypeQualifier = 4,
+    DebugInfoDebugTypeArray = 5,
+    DebugInfoDebugTypeVector = 6,
+    DebugInfoDebugTypedef = 7,
+    DebugInfoDebugTypeFunction = 8,
+    DebugInfoDebugTypeEnum = 9,
+    DebugInfoDebugTypeComposite = 10,
+    DebugInfoDebugTypeMember = 11,
+    DebugInfoDebugTypeInheritance = 12,
+    DebugInfoDebugTypePtrToMember = 13,
+    DebugInfoDebugTypeTemplate = 14,
+    DebugInfoDebugTypeTemplateParameter = 15,
+    DebugInfoDebugTypeTemplateTemplateParameter = 16,
+    DebugInfoDebugTypeTemplateParameterPack = 17,
+    DebugInfoDebugGlobalVariable = 18,
+    DebugInfoDebugFunctionDeclaration = 19,
+    DebugInfoDebugFunction = 20,
+    DebugInfoDebugLexicalBlock = 21,
+    DebugInfoDebugLexicalBlockDiscriminator = 22,
+    DebugInfoDebugScope = 23,
+    DebugInfoDebugNoScope = 24,
+    DebugInfoDebugInlinedAt = 25,
+    DebugInfoDebugLocalVariable = 26,
+    DebugInfoDebugInlinedVariable = 27,
+    DebugInfoDebugDeclare = 28,
+    DebugInfoDebugValue = 29,
+    DebugInfoDebugOperation = 30,
+    DebugInfoDebugExpression = 31,
+    DebugInfoDebugMacroDef = 32,
+    DebugInfoDebugMacroUndef = 33,
+    DebugInfoInstructionsMax = 0x7ffffff
+};
+
+
+enum DebugInfoDebugInfoFlags {
+    DebugInfoFlagIsProtected = 0x01,
+    DebugInfoFlagIsPrivate = 0x02,
+    DebugInfoFlagIsPublic = 0x03,
+    DebugInfoFlagIsLocal = 0x04,
+    DebugInfoFlagIsDefinition = 0x08,
+    DebugInfoFlagFwdDecl = 0x10,
+    DebugInfoFlagArtificial = 0x20,
+    DebugInfoFlagExplicit = 0x40,
+    DebugInfoFlagPrototyped = 0x80,
+    DebugInfoFlagObjectPointer = 0x100,
+    DebugInfoFlagStaticMember = 0x200,
+    DebugInfoFlagIndirectVariable = 0x400,
+    DebugInfoFlagLValueReference = 0x800,
+    DebugInfoFlagRValueReference = 0x1000,
+    DebugInfoFlagIsOptimized = 0x2000,
+    DebugInfoDebugInfoFlagsMax = 0x7ffffff
+};
+
+enum DebugInfoDebugBaseTypeAttributeEncoding {
+    DebugInfoUnspecified = 0,
+    DebugInfoAddress = 1,
+    DebugInfoBoolean = 2,
+    DebugInfoFloat = 4,
+    DebugInfoSigned = 5,
+    DebugInfoSignedChar = 6,
+    DebugInfoUnsigned = 7,
+    DebugInfoUnsignedChar = 8,
+    DebugInfoDebugBaseTypeAttributeEncodingMax = 0x7ffffff
+};
+
+enum DebugInfoDebugCompositeType {
+    DebugInfoClass = 0,
+    DebugInfoStructure = 1,
+    DebugInfoUnion = 2,
+    DebugInfoDebugCompositeTypeMax = 0x7ffffff
+};
+
+enum DebugInfoDebugTypeQualifier {
+    DebugInfoConstType = 0,
+    DebugInfoVolatileType = 1,
+    DebugInfoRestrictType = 2,
+    DebugInfoDebugTypeQualifierMax = 0x7ffffff
+};
+
+enum DebugInfoDebugOperation {
+    DebugInfoDeref = 0,
+    DebugInfoPlus = 1,
+    DebugInfoMinus = 2,
+    DebugInfoPlusUconst = 3,
+    DebugInfoBitPiece = 4,
+    DebugInfoSwap = 5,
+    DebugInfoXderef = 6,
+    DebugInfoStackValue = 7,
+    DebugInfoConstu = 8,
+    DebugInfoDebugOperationMax = 0x7ffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_EXTINST_DebugInfo_H_
\ No newline at end of file