diff --git a/src/libraries/glslang/SPIRV/GlslangToSpv.cpp b/src/libraries/glslang/SPIRV/GlslangToSpv.cpp
index 071dad301..3e420aa26 100644
--- a/src/libraries/glslang/SPIRV/GlslangToSpv.cpp
+++ b/src/libraries/glslang/SPIRV/GlslangToSpv.cpp
@@ -1292,7 +1292,8 @@ bool IsDescriptorResource(const glslang::TType& type)
     // basically samplerXXX/subpass/sampler/texture are all included
     // if they are the global-scope-class, not the function parameter
     // (or local, if they ever exist) class.
-    if (type.getBasicType() == glslang::EbtSampler)
+    if (type.getBasicType() == glslang::EbtSampler ||
+        type.getBasicType() == glslang::EbtAccStruct)
         return type.getQualifier().isUniformOrBuffer();
 
     // None of the above.
@@ -1439,7 +1440,7 @@ TGlslangToSpvTraverser::TGlslangToSpvTraverser(unsigned int spvVersion,
     // Add the source extensions
     const auto& sourceExtensions = glslangIntermediate->getRequestedExtensions();
     for (auto it = sourceExtensions.begin(); it != sourceExtensions.end(); ++it)
-        builder.addSourceExtension(it->c_str());
+        builder.addSourceExtension(it->first.c_str());
 
     // Add the top-level modes for this shader.
 
@@ -1448,7 +1449,7 @@ TGlslangToSpvTraverser::TGlslangToSpvTraverser(unsigned int spvVersion,
         builder.addExecutionMode(shaderEntry, spv::ExecutionModeXfb);
     }
 
-    if (sourceExtensions.find("GL_EXT_ray_flags_primitive_culling") != sourceExtensions.end()) {
+    if (glslangIntermediate->getLayoutPrimitiveCulling()) {
         builder.addCapability(spv::CapabilityRayTraversalPrimitiveCullingProvisionalKHR);
     }
 
@@ -3524,7 +3525,18 @@ spv::Id TGlslangToSpvTraverser::createSpvVariable(const glslang::TIntermSymbol*
     if (glslang::IsAnonymous(name))
         name = "";
 
-    return builder.createVariable(storageClass, spvType, name);
+    spv::Id initializer = spv::NoResult;
+
+    if (node->getType().getQualifier().storage == glslang::EvqUniform &&
+        !node->getConstArray().empty()) {
+            int nextConst = 0;
+            initializer = createSpvConstantFromConstUnionArray(node->getType(),
+                                                               node->getConstArray(),
+                                                               nextConst,
+                                                               false /* specConst */);
+    }
+
+    return builder.createVariable(storageClass, spvType, name, initializer);
 }
 
 // Return type Id of the sampled type.
@@ -4388,8 +4400,10 @@ bool TGlslangToSpvTraverser::writableParam(glslang::TStorageQualifier qualifier)
     assert(qualifier == glslang::EvqIn ||
            qualifier == glslang::EvqOut ||
            qualifier == glslang::EvqInOut ||
+           qualifier == glslang::EvqUniform ||
            qualifier == glslang::EvqConstReadOnly);
-    return qualifier != glslang::EvqConstReadOnly;
+    return qualifier != glslang::EvqConstReadOnly &&
+           qualifier != glslang::EvqUniform;
 }
 
 // Is parameter pass-by-original?
@@ -8270,6 +8284,18 @@ spv::Id TGlslangToSpvTraverser::createSpvConstant(const glslang::TIntermTyped& n
 
     // We now know we have a specialization constant to build
 
+    // Extra capabilities may be needed.
+    if (node.getType().contains8BitInt())
+        builder.addCapability(spv::CapabilityInt8);
+    if (node.getType().contains16BitFloat())
+        builder.addCapability(spv::CapabilityFloat16);
+    if (node.getType().contains16BitInt())
+        builder.addCapability(spv::CapabilityInt16);
+    if (node.getType().contains64BitInt())
+        builder.addCapability(spv::CapabilityInt64);
+    if (node.getType().containsDouble())
+        builder.addCapability(spv::CapabilityFloat64);
+
     // gl_WorkGroupSize is a special case until the front-end handles hierarchical specialization constants,
     // even then, it's specialization ids are handled by special case syntax in GLSL: layout(local_size_x = ...
     if (node.getType().getQualifier().builtIn == glslang::EbvWorkGroupSize) {
diff --git a/src/libraries/glslang/SPIRV/spirv.hpp b/src/libraries/glslang/SPIRV/spirv.hpp
index 2b7e80f83..dae36cf20 100644
--- a/src/libraries/glslang/SPIRV/spirv.hpp
+++ b/src/libraries/glslang/SPIRV/spirv.hpp
@@ -50,11 +50,11 @@ namespace spv {
 typedef unsigned int Id;
 
 #define SPV_VERSION 0x10500
-#define SPV_REVISION 1
+#define SPV_REVISION 3
 
 static const unsigned int MagicNumber = 0x07230203;
 static const unsigned int Version = 0x00010500;
-static const unsigned int Revision = 1;
+static const unsigned int Revision = 3;
 static const unsigned int OpCodeMask = 0xffff;
 static const unsigned int WordCountShift = 16;
 
diff --git a/src/libraries/glslang/glslang/Include/BaseTypes.h b/src/libraries/glslang/glslang/Include/BaseTypes.h
index 816b17948..b69eaebf2 100644
--- a/src/libraries/glslang/glslang/Include/BaseTypes.h
+++ b/src/libraries/glslang/glslang/Include/BaseTypes.h
@@ -231,6 +231,9 @@ enum TBuiltInVariable {
     EbvFragSizeEXT,
     EbvFragInvocationCountEXT,
 
+    EbvSecondaryFragDataEXT,
+    EbvSecondaryFragColorEXT,
+
     EbvViewportMaskNV,
     EbvSecondaryPositionNV,
     EbvSecondaryViewportMaskNV,
@@ -433,6 +436,9 @@ __inline const char* GetBuiltInVariableString(TBuiltInVariable v)
     case EbvFragSizeEXT:                return "FragSizeEXT";
     case EbvFragInvocationCountEXT:     return "FragInvocationCountEXT";
 
+    case EbvSecondaryFragDataEXT:       return "SecondaryFragDataEXT";
+    case EbvSecondaryFragColorEXT:      return "SecondaryFragColorEXT";
+
     case EbvViewportMaskNV:             return "ViewportMaskNV";
     case EbvSecondaryPositionNV:        return "SecondaryPositionNV";
     case EbvSecondaryViewportMaskNV:    return "SecondaryViewportMaskNV";
diff --git a/src/libraries/glslang/glslang/Include/ResourceLimits.h b/src/libraries/glslang/glslang/Include/ResourceLimits.h
index 106b21d9c..b670cf163 100644
--- a/src/libraries/glslang/glslang/Include/ResourceLimits.h
+++ b/src/libraries/glslang/glslang/Include/ResourceLimits.h
@@ -142,6 +142,7 @@ struct TBuiltInResource {
     int maxTaskWorkGroupSizeY_NV;
     int maxTaskWorkGroupSizeZ_NV;
     int maxMeshViewCountNV;
+    int maxDualSourceDrawBuffersEXT;
 
     TLimits limits;
 };
diff --git a/src/libraries/glslang/glslang/Include/Types.h b/src/libraries/glslang/glslang/Include/Types.h
index b2c416d10..235ea3f1d 100644
--- a/src/libraries/glslang/glslang/Include/Types.h
+++ b/src/libraries/glslang/glslang/Include/Types.h
@@ -1235,6 +1235,7 @@ struct TShaderQualifiers {
     bool layoutDerivativeGroupQuads;    // true if layout derivative_group_quadsNV set
     bool layoutDerivativeGroupLinear;   // true if layout derivative_group_linearNV set
     int primitives;                     // mesh shader "max_primitives"DerivativeGroupLinear;   // true if layout derivative_group_linearNV set
+    bool layoutPrimitiveCulling;        // true if layout primitive_culling set
     TLayoutDepth getDepth() const { return layoutDepth; }
 #else
     TLayoutDepth getDepth() const { return EldNone; }
@@ -1268,6 +1269,7 @@ struct TShaderQualifiers {
         layoutOverrideCoverage      = false;
         layoutDerivativeGroupQuads  = false;
         layoutDerivativeGroupLinear = false;
+        layoutPrimitiveCulling      = false;
         primitives                  = TQualifier::layoutNotSet;
         interlockOrdering = EioNone;
 #endif
@@ -1331,6 +1333,8 @@ struct TShaderQualifiers {
             primitives = src.primitives;
         if (src.interlockOrdering != EioNone)
             interlockOrdering = src.interlockOrdering;
+        if (src.layoutPrimitiveCulling)
+            layoutPrimitiveCulling = src.layoutPrimitiveCulling;
 #endif
     }
 };
diff --git a/src/libraries/glslang/glslang/Include/glslang_c_interface.h b/src/libraries/glslang/glslang/Include/glslang_c_interface.h
index 5a450e0e9..50e95b7e8 100644
--- a/src/libraries/glslang/glslang/Include/glslang_c_interface.h
+++ b/src/libraries/glslang/glslang/Include/glslang_c_interface.h
@@ -148,6 +148,7 @@ typedef struct glslang_resource_s {
     int max_task_work_group_size_y_nv;
     int max_task_work_group_size_z_nv;
     int max_mesh_view_count_nv;
+    int maxDualSourceDrawBuffersEXT;
 
     glslang_limits_t limits;
 } glslang_resource_t;
diff --git a/src/libraries/glslang/glslang/Include/glslang_c_shader_types.h b/src/libraries/glslang/glslang/Include/glslang_c_shader_types.h
index 769f4c4a8..d01a115f6 100644
--- a/src/libraries/glslang/glslang/Include/glslang_c_shader_types.h
+++ b/src/libraries/glslang/glslang/Include/glslang_c_shader_types.h
@@ -164,6 +164,9 @@ typedef enum {
     GLSLANG_REFLECTION_SEPARATE_BUFFERS_BIT = (1 << 3),
     GLSLANG_REFLECTION_ALL_BLOCK_VARIABLES_BIT = (1 << 4),
     GLSLANG_REFLECTION_UNWRAP_IO_BLOCKS_BIT = (1 << 5),
+    GLSLANG_REFLECTION_ALL_IO_VARIABLES_BIT = (1 << 6),
+    GLSLANG_REFLECTION_SHARED_STD140_SSBO_BIT = (1 << 7),
+    GLSLANG_REFLECTION_SHARED_STD140_UBO_BIT = (1 << 8),
     LAST_ELEMENT_MARKER(GLSLANG_REFLECTION_COUNT),
 } glslang_reflection_options_t;
 
diff --git a/src/libraries/glslang/glslang/Include/revision.h b/src/libraries/glslang/glslang/Include/revision.h
index f096716eb..693557bec 100644
--- a/src/libraries/glslang/glslang/Include/revision.h
+++ b/src/libraries/glslang/glslang/Include/revision.h
@@ -1,3 +1,3 @@
 // This header is generated by the make-revision script.
 
-#define GLSLANG_PATCH_LEVEL 3741
+#define GLSLANG_PATCH_LEVEL 3766
diff --git a/src/libraries/glslang/glslang/MachineIndependent/Initialize.cpp b/src/libraries/glslang/glslang/MachineIndependent/Initialize.cpp
index 2fb44d089..4806f7381 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/Initialize.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/Initialize.cpp
@@ -146,7 +146,7 @@ EProfile EDesktopProfile = static_cast<EProfile>(ENoProfile | ECoreProfile | ECo
 // Declare pointers to put into the table for versioning.
 #ifdef GLSLANG_WEB
     const Versioning* Es300Desktop130 = nullptr;
-    const Versioning* Es310Desktop430 = nullptr;
+    const Versioning* Es310Desktop420 = nullptr;
 #else
     const Versioning Es300Desktop130Version[] = { { EEsProfile,      0, 300, 0, nullptr },
                                                   { EDesktopProfile, 0, 130, 0, nullptr },
@@ -158,11 +158,6 @@ EProfile EDesktopProfile = static_cast<EProfile>(ENoProfile | ECoreProfile | ECo
                                                   { EBadProfile } };
     const Versioning* Es310Desktop420 = &Es310Desktop420Version[0];
 
-    const Versioning Es310Desktop430Version[] = { { EEsProfile,      0, 310, 0, nullptr },
-                                                  { EDesktopProfile, 0, 430, 0, nullptr },
-                                                  { EBadProfile } };
-    const Versioning* Es310Desktop430 = &Es310Desktop430Version[0];
-
     const Versioning Es310Desktop450Version[] = { { EEsProfile,      0, 310, 0, nullptr },
                                                   { EDesktopProfile, 0, 450, 0, nullptr },
                                                   { EBadProfile } };
@@ -1349,7 +1344,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
 #endif
 
     if ((profile == EEsProfile && version >= 300) ||
-        (profile != EEsProfile && version >= 400)) {
+        (profile != EEsProfile && version >= 150)) {
         commonBuiltins.append(
             "highp uint packUnorm2x16(vec2);"
                   "vec2 unpackUnorm2x16(highp uint);"
@@ -1357,7 +1352,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
     }
 
     if ((profile == EEsProfile && version >= 300) ||
-        (profile != EEsProfile && version >= 420)) {
+        (profile != EEsProfile && version >= 150)) {
         commonBuiltins.append(
             "highp uint packSnorm2x16(vec2);"
             "      vec2 unpackSnorm2x16(highp uint);"
@@ -1369,7 +1364,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
         commonBuiltins.append(
             "mediump vec2 unpackHalf2x16(highp uint);"
             "\n");
-    } else if (profile != EEsProfile && version >= 420) {
+    } else if (profile != EEsProfile && version >= 150) {
         commonBuiltins.append(
             "        vec2 unpackHalf2x16(highp uint);"
             "\n");
@@ -1377,7 +1372,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
 
 #ifndef GLSLANG_WEB
     if ((profile == EEsProfile && version >= 310) ||
-        (profile != EEsProfile && version >= 400)) {
+        (profile != EEsProfile && version >= 150)) {
         commonBuiltins.append(
             "highp uint packSnorm4x8(vec4);"
             "highp uint packUnorm4x8(vec4);"
@@ -1389,7 +1384,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
             "mediump vec4 unpackSnorm4x8(highp uint);"
             "mediump vec4 unpackUnorm4x8(highp uint);"
             "\n");
-    } else if (profile != EEsProfile && version >= 400) {
+    } else if (profile != EEsProfile && version >= 150) {
         commonBuiltins.append(
                     "vec4 unpackSnorm4x8(highp uint);"
                     "vec4 unpackUnorm4x8(highp uint);"
@@ -3072,6 +3067,24 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
             "\n");
     }
 
+    if ((profile == EEsProfile && version >= 300 && version < 310) ||
+        (profile != EEsProfile && version >= 150 && version < 450)) { // GL_EXT_shader_integer_mix
+        commonBuiltins.append("int mix(int, int, bool);"
+                              "ivec2 mix(ivec2, ivec2, bvec2);"
+                              "ivec3 mix(ivec3, ivec3, bvec3);"
+                              "ivec4 mix(ivec4, ivec4, bvec4);"
+                              "uint  mix(uint,  uint,  bool );"
+                              "uvec2 mix(uvec2, uvec2, bvec2);"
+                              "uvec3 mix(uvec3, uvec3, bvec3);"
+                              "uvec4 mix(uvec4, uvec4, bvec4);"
+                              "bool  mix(bool,  bool,  bool );"
+                              "bvec2 mix(bvec2, bvec2, bvec2);"
+                              "bvec3 mix(bvec3, bvec3, bvec3);"
+                              "bvec4 mix(bvec4, bvec4, bvec4);"
+
+                              "\n");
+    }
+
     // GL_AMD_gpu_shader_half_float/Explicit types
     if (profile != EEsProfile && version >= 450) {
         commonBuiltins.append(
@@ -5864,9 +5877,9 @@ void TBuiltIns::addQueryFunctions(TSampler sampler, const TString& typeName, int
 
     //
     // textureQueryLod(), fragment stage only
-    //
+    // Also enabled with extension GL_ARB_texture_query_lod
 
-    if (profile != EEsProfile && version >= 400 && sampler.isCombined() && sampler.dim != EsdRect &&
+    if (profile != EEsProfile && version >= 150 && sampler.isCombined() && sampler.dim != EsdRect &&
         ! sampler.isMultiSample() && ! sampler.isBuffer()) {
         for (int f16TexAddr = 0; f16TexAddr < 2; ++f16TexAddr) {
             if (f16TexAddr && sampler.type != EbtFloat16)
@@ -6758,6 +6771,18 @@ void TBuiltIns::initialize(const TBuiltInResource &resources, int version, EProf
             s.append(builtInConstant);
         }
 
+        if (version >= 100) {
+            // GL_EXT_blend_func_extended
+            snprintf(builtInConstant, maxSize, "const mediump int gl_MaxDualSourceDrawBuffersEXT = %d;", resources.maxDualSourceDrawBuffersEXT);
+            s.append(builtInConstant);
+            // this is here instead of with the others in initialize(version, profile) due to the dependence on gl_MaxDualSourceDrawBuffersEXT
+            if (language == EShLangFragment) {
+                s.append(
+                    "mediump vec4 gl_SecondaryFragColorEXT;"
+                    "mediump vec4 gl_SecondaryFragDataEXT[gl_MaxDualSourceDrawBuffersEXT];"
+                    "\n");
+            }
+        }
     } else {
         // non-ES profile
 
@@ -7570,6 +7595,10 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
             BuiltInVariable("gl_FragStencilRefARB", EbvFragStencilRef, symbolTable);
         }
 
+        if (profile != EEsProfile && version < 400) {
+            symbolTable.setFunctionExtensions("textureQueryLod", 1, &E_GL_ARB_texture_query_lod);
+        }
+
         if (profile != EEsProfile && version >= 460) {
             symbolTable.setFunctionExtensions("rayQueryInitializeEXT",                                            1, &E_GL_EXT_ray_query);
             symbolTable.setFunctionExtensions("rayQueryTerminateEXT",                                             1, &E_GL_EXT_ray_query);
@@ -7880,6 +7909,22 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
             symbolTable.setFunctionExtensions("atomicCompSwap", 1, &E_GL_ARB_shader_storage_buffer_object);
         }
 
+        // GL_ARB_shading_language_packing
+        if (profile != EEsProfile && version < 400 ) {
+            symbolTable.setFunctionExtensions("packUnorm2x16", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("unpackUnorm2x16", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("packSnorm4x8", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("packUnorm4x8", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("unpackSnorm4x8", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("unpackUnorm4x8", 1, &E_GL_ARB_shading_language_packing);
+        }
+        if (profile != EEsProfile && version < 420 ) {
+            symbolTable.setFunctionExtensions("packSnorm2x16", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("unpackSnorm2x16", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("unpackHalf2x16", 1, &E_GL_ARB_shading_language_packing);
+            symbolTable.setFunctionExtensions("packHalf2x16", 1, &E_GL_ARB_shading_language_packing);
+        }
+
         symbolTable.setVariableExtensions("gl_DeviceIndex",  1, &E_GL_EXT_device_group);
         BuiltInVariable("gl_DeviceIndex", EbvDeviceIndex, symbolTable);
         symbolTable.setVariableExtensions("gl_ViewIndex", 1, &E_GL_EXT_multiview);
@@ -8091,6 +8136,7 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
             symbolTable.setFunctionExtensions("groupMemoryBarrier",         1, &E_GL_ARB_compute_shader);
         }
 
+
         symbolTable.setFunctionExtensions("controlBarrier",                 1, &E_GL_KHR_memory_scope_semantics);
         symbolTable.setFunctionExtensions("debugPrintfEXT",                 1, &E_GL_EXT_debug_printf);
 
@@ -9131,6 +9177,16 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
             symbolTable.insert(*new TVariable(NewPoolTString("gl_FragData"), fragData));
             SpecialQualifier("gl_FragData", EvqFragColor, EbvFragData, symbolTable);
         }
+
+        // GL_EXT_blend_func_extended
+        if (profile == EEsProfile && version >= 100) {
+           symbolTable.setVariableExtensions("gl_MaxDualSourceDrawBuffersEXT",    1, &E_GL_EXT_blend_func_extended);
+           symbolTable.setVariableExtensions("gl_SecondaryFragColorEXT",    1, &E_GL_EXT_blend_func_extended);
+           symbolTable.setVariableExtensions("gl_SecondaryFragDataEXT",    1, &E_GL_EXT_blend_func_extended);
+           SpecialQualifier("gl_SecondaryFragColorEXT", EvqVaryingOut, EbvSecondaryFragColorEXT, symbolTable);
+           SpecialQualifier("gl_SecondaryFragDataEXT", EvqVaryingOut, EbvSecondaryFragDataEXT, symbolTable);
+        }
+
         break;
 
     case EShLangTessControl:
diff --git a/src/libraries/glslang/glslang/MachineIndependent/Intermediate.cpp b/src/libraries/glslang/glslang/MachineIndependent/Intermediate.cpp
index f6a5e7f27..52ec6115f 100755
--- a/src/libraries/glslang/glslang/MachineIndependent/Intermediate.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/Intermediate.cpp
@@ -1620,7 +1620,7 @@ bool TIntermediate::isFPIntegralConversion(TBasicType from, TBasicType to) const
 //
 bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperator op) const
 {
-    if (isEsProfile() || version == 110)
+    if ((isEsProfile() && version < 310 ) || version == 110)
         return false;
 
     if (from == to)
@@ -1667,7 +1667,7 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
                                 extensionRequested(E_GL_EXT_shader_explicit_arithmetic_types_float16) ||
                                 extensionRequested(E_GL_EXT_shader_explicit_arithmetic_types_float32) ||
                                 extensionRequested(E_GL_EXT_shader_explicit_arithmetic_types_float64);
-
+    
     if (explicitTypesEnabled) {
         // integral promotions
         if (isIntegralPromotion(from, to)) {
@@ -1699,6 +1699,30 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
             if (from == EbtBool && (to == EbtInt || to == EbtUint || to == EbtFloat))
                 return true;
         }
+    } else if (isEsProfile()) {
+        switch (to) {
+            case EbtFloat:
+                switch (from) {
+                case EbtInt:
+                case EbtUint:
+                    return extensionRequested(E_GL_EXT_shader_implicit_conversions);
+                case EbtFloat:
+                    return true;
+                default:
+                    return false;
+                }
+            case EbtUint:
+                switch (from) {
+                case EbtInt:
+                    return extensionRequested(E_GL_EXT_shader_implicit_conversions);
+                case EbtUint:
+                    return true;
+                default:
+                    return false;
+                }
+            default:
+                return false;
+        }        
     } else {
         switch (to) {
         case EbtDouble:
@@ -1709,12 +1733,14 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
             case EbtUint64:
             case EbtFloat:
             case EbtDouble:
-                return true;
+                return version >= 400 || extensionRequested(E_GL_ARB_gpu_shader_fp64);
             case EbtInt16:
             case EbtUint16:
-                return extensionRequested(E_GL_AMD_gpu_shader_int16);
+                return (version >= 400 || extensionRequested(E_GL_ARB_gpu_shader_fp64)) &&
+                       extensionRequested(E_GL_AMD_gpu_shader_int16);
             case EbtFloat16:
-                return extensionRequested(E_GL_AMD_gpu_shader_half_float);
+                return (version >= 400 || extensionRequested(E_GL_ARB_gpu_shader_fp64)) &&
+                       extensionRequested(E_GL_AMD_gpu_shader_half_float);
             default:
                 return false;
            }
@@ -1731,15 +1757,14 @@ bool TIntermediate::canImplicitlyPromote(TBasicType from, TBasicType to, TOperat
                 return extensionRequested(E_GL_AMD_gpu_shader_int16);
             case EbtFloat16:
                 return 
-                    extensionRequested(E_GL_AMD_gpu_shader_half_float) ||
-                    getSource() == EShSourceHlsl;
+                    extensionRequested(E_GL_AMD_gpu_shader_half_float) || getSource() == EShSourceHlsl;
             default:
                  return false;
             }
         case EbtUint:
             switch (from) {
             case EbtInt:
-                 return version >= 400 || getSource() == EShSourceHlsl;
+                return version >= 400 || getSource() == EShSourceHlsl;
             case EbtUint:
                 return true;
             case EbtBool:
@@ -1931,7 +1956,9 @@ std::tuple<TBasicType, TBasicType> TIntermediate::getConversionDestinatonType(TB
     TBasicType res0 = EbtNumTypes;
     TBasicType res1 = EbtNumTypes;
 
-    if (isEsProfile() || version == 110)
+    if ((isEsProfile() && 
+        (version < 310 || !extensionRequested(E_GL_EXT_shader_implicit_conversions))) || 
+        version == 110)
         return std::make_tuple(res0, res1);
 
     if (getSource() == EShSourceHlsl) {
diff --git a/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.cpp b/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.cpp
index d3c9269ca..a35d41a05 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.cpp
@@ -428,8 +428,18 @@ TIntermTyped* TParseContext::handleBracketDereference(const TSourceLoc& loc, TIn
 #ifndef GLSLANG_WEB
     if (base->isReference() && ! base->isArray()) {
         requireExtensions(loc, 1, &E_GL_EXT_buffer_reference2, "buffer reference indexing");
-        result = intermediate.addBinaryMath(EOpAdd, base, index, loc);
-        result->setType(base->getType());
+        if (base->getType().getReferentType()->containsUnsizedArray()) {
+            error(loc, "cannot index reference to buffer containing an unsized array", "", "");
+            result = nullptr;
+        } else {
+            result = intermediate.addBinaryMath(EOpAdd, base, index, loc);
+            if (result != nullptr)
+                result->setType(base->getType());
+        }
+        if (result == nullptr) {
+            error(loc, "cannot index buffer reference", "", "");
+            result = intermediate.addConstantUnion(0.0, EbtFloat, loc);
+        }
         return result;
     }
     if (base->getAsSymbolNode() && isIoResizeArray(base->getType()))
@@ -822,50 +832,7 @@ TIntermTyped* TParseContext::handleDotDereference(const TSourceLoc& loc, TInterm
     TIntermTyped* result = base;
     if ((base->isVector() || base->isScalar()) &&
         (base->isFloatingDomain() || base->isIntegerDomain() || base->getBasicType() == EbtBool)) {
-        if (base->isScalar()) {
-            const char* dotFeature = "scalar swizzle";
-            requireProfile(loc, ~EEsProfile, dotFeature);
-            profileRequires(loc, ~EEsProfile, 420, E_GL_ARB_shading_language_420pack, dotFeature);
-        }
-
-        TSwizzleSelectors<TVectorSelector> selectors;
-        parseSwizzleSelector(loc, field, base->getVectorSize(), selectors);
-
-        if (base->isVector() && selectors.size() != 1 && base->getType().contains16BitFloat())
-            requireFloat16Arithmetic(loc, ".", "can't swizzle types containing float16");
-        if (base->isVector() && selectors.size() != 1 && base->getType().contains16BitInt())
-            requireInt16Arithmetic(loc, ".", "can't swizzle types containing (u)int16");
-        if (base->isVector() && selectors.size() != 1 && base->getType().contains8BitInt())
-            requireInt8Arithmetic(loc, ".", "can't swizzle types containing (u)int8");
-
-        if (base->isScalar()) {
-            if (selectors.size() == 1)
-                return result;
-            else {
-                TType type(base->getBasicType(), EvqTemporary, selectors.size());
-                // Swizzle operations propagate specialization-constantness
-                if (base->getQualifier().isSpecConstant())
-                    type.getQualifier().makeSpecConstant();
-                return addConstructor(loc, base, type);
-            }
-        }
-
-        if (base->getType().getQualifier().isFrontEndConstant())
-            result = intermediate.foldSwizzle(base, selectors, loc);
-        else {
-            if (selectors.size() == 1) {
-                TIntermTyped* index = intermediate.addConstantUnion(selectors[0], loc);
-                result = intermediate.addIndex(EOpIndexDirect, base, index, loc);
-                result->setType(TType(base->getBasicType(), EvqTemporary, base->getType().getQualifier().precision));
-            } else {
-                TIntermTyped* index = intermediate.addSwizzle(selectors, loc);
-                result = intermediate.addIndex(EOpVectorSwizzle, base, index, loc);
-                result->setType(TType(base->getBasicType(), EvqTemporary, base->getType().getQualifier().precision, selectors.size()));
-            }
-            // Swizzle operations propagate specialization-constantness
-            if (base->getType().getQualifier().isSpecConstant())
-                result->getWritableType().getQualifier().makeSpecConstant();
-        }
+        result = handleDotSwizzle(loc, base, field);
     } else if (base->isStruct() || base->isReference()) {
         const TTypeList* fields = base->isReference() ?
                                   base->getType().getReferentType()->getStruct() :
@@ -906,6 +873,60 @@ TIntermTyped* TParseContext::handleDotDereference(const TSourceLoc& loc, TInterm
     return result;
 }
 
+//
+// Handle seeing a base.swizzle, a subset of base.identifier in the grammar.
+//
+TIntermTyped* TParseContext::handleDotSwizzle(const TSourceLoc& loc, TIntermTyped* base, const TString& field)
+{
+    TIntermTyped* result = base;
+    if (base->isScalar()) {
+        const char* dotFeature = "scalar swizzle";
+        requireProfile(loc, ~EEsProfile, dotFeature);
+        profileRequires(loc, ~EEsProfile, 420, E_GL_ARB_shading_language_420pack, dotFeature);
+    }
+
+    TSwizzleSelectors<TVectorSelector> selectors;
+    parseSwizzleSelector(loc, field, base->getVectorSize(), selectors);
+
+    if (base->isVector() && selectors.size() != 1 && base->getType().contains16BitFloat())
+        requireFloat16Arithmetic(loc, ".", "can't swizzle types containing float16");
+    if (base->isVector() && selectors.size() != 1 && base->getType().contains16BitInt())
+        requireInt16Arithmetic(loc, ".", "can't swizzle types containing (u)int16");
+    if (base->isVector() && selectors.size() != 1 && base->getType().contains8BitInt())
+        requireInt8Arithmetic(loc, ".", "can't swizzle types containing (u)int8");
+
+    if (base->isScalar()) {
+        if (selectors.size() == 1)
+            return result;
+        else {
+            TType type(base->getBasicType(), EvqTemporary, selectors.size());
+            // Swizzle operations propagate specialization-constantness
+            if (base->getQualifier().isSpecConstant())
+                type.getQualifier().makeSpecConstant();
+            return addConstructor(loc, base, type);
+        }
+    }
+
+    if (base->getType().getQualifier().isFrontEndConstant())
+        result = intermediate.foldSwizzle(base, selectors, loc);
+    else {
+        if (selectors.size() == 1) {
+            TIntermTyped* index = intermediate.addConstantUnion(selectors[0], loc);
+            result = intermediate.addIndex(EOpIndexDirect, base, index, loc);
+            result->setType(TType(base->getBasicType(), EvqTemporary, base->getType().getQualifier().precision));
+        } else {
+            TIntermTyped* index = intermediate.addSwizzle(selectors, loc);
+            result = intermediate.addIndex(EOpVectorSwizzle, base, index, loc);
+            result->setType(TType(base->getBasicType(), EvqTemporary, base->getType().getQualifier().precision, selectors.size()));
+        }
+        // Swizzle operations propagate specialization-constantness
+        if (base->getType().getQualifier().isSpecConstant())
+            result->getWritableType().getQualifier().makeSpecConstant();
+    }
+
+    return result;
+}
+
 void TParseContext::blockMemberExtensionCheck(const TSourceLoc& loc, const TIntermTyped* base, int member, const TString& memberName)
 {
     // a block that needs extension checking is either 'base', or if arrayed,
@@ -2198,6 +2219,28 @@ void TParseContext::builtInOpCheck(const TSourceLoc& loc, const TFunction& fnCan
             memorySemanticsCheck(loc, fnCandidate, callNode);
         }
         break;
+
+    case EOpMix:
+        if (profile == EEsProfile && version < 310) {
+            // Look for specific signatures
+            if ((*argp)[0]->getAsTyped()->getBasicType() != EbtFloat &&
+                (*argp)[1]->getAsTyped()->getBasicType() != EbtFloat &&
+                (*argp)[2]->getAsTyped()->getBasicType() == EbtBool) {
+                requireExtensions(loc, 1, &E_GL_EXT_shader_integer_mix, "specific signature of builtin mix");
+            }
+        }
+
+        if (profile != EEsProfile && version < 450) {
+            if ((*argp)[0]->getAsTyped()->getBasicType() != EbtFloat && 
+                (*argp)[0]->getAsTyped()->getBasicType() != EbtDouble &&
+                (*argp)[1]->getAsTyped()->getBasicType() != EbtFloat &&
+                (*argp)[1]->getAsTyped()->getBasicType() != EbtDouble &&
+                (*argp)[2]->getAsTyped()->getBasicType() == EbtBool) {
+                requireExtensions(loc, 1, &E_GL_EXT_shader_integer_mix, fnCandidate.getName().c_str());
+            }
+        }
+
+        break;
 #endif
 
     default:
@@ -3354,6 +3397,11 @@ void TParseContext::globalQualifierTypeCheck(const TSourceLoc& loc, const TQuali
         !qualifier.hasBufferReference())
         error(loc, "buffers can be declared only as blocks", "buffer", "");
 
+    if (qualifier.storage != EvqVaryingIn && publicType.basicType == EbtDouble &&
+        extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit) && language == EShLangVertex &&
+        version < 400) {
+        profileRequires(loc, ECoreProfile | ECompatibilityProfile, 410, E_GL_ARB_gpu_shader_fp64, "vertex-shader `double` type");
+    }
     if (qualifier.storage != EvqVaryingIn && qualifier.storage != EvqVaryingOut)
         return;
 
@@ -3404,7 +3452,7 @@ void TParseContext::globalQualifierTypeCheck(const TSourceLoc& loc, const TQuali
                 profileRequires(loc, ENoProfile, 150, nullptr, "vertex input arrays");
             }
             if (publicType.basicType == EbtDouble)
-                profileRequires(loc, ~EEsProfile, 410, nullptr, "vertex-shader `double` type input");
+                profileRequires(loc, ~EEsProfile, 410, E_GL_ARB_vertex_attrib_64bit, "vertex-shader `double` type input");
             if (qualifier.isAuxiliary() || qualifier.isInterpolation() || qualifier.isMemory() || qualifier.invariant)
                 error(loc, "vertex input cannot be further qualified", "", "");
             break;
@@ -5125,6 +5173,12 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
             }
         }
     }
+
+    if (id == "primitive_culling") {
+        requireExtensions(loc, 1, &E_GL_EXT_ray_flags_primitive_culling, "primitive culling");
+        publicType.shaderQualifiers.layoutPrimitiveCulling = true;
+        return;
+    }
 #endif
 
     error(loc, "unrecognized layout identifier, or qualifier requires assignment (e.g., binding = 4)", id.c_str(), "");
@@ -5385,10 +5439,10 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
 
     case EShLangFragment:
         if (id == "index") {
-            requireProfile(loc, ECompatibilityProfile | ECoreProfile, "index layout qualifier on fragment output");
+            requireProfile(loc, ECompatibilityProfile | ECoreProfile | EEsProfile, "index layout qualifier on fragment output");
             const char* exts[2] = { E_GL_ARB_separate_shader_objects, E_GL_ARB_explicit_attrib_location };
             profileRequires(loc, ECompatibilityProfile | ECoreProfile, 330, 2, exts, "index layout qualifier on fragment output");
-
+            profileRequires(loc, EEsProfile ,310, E_GL_EXT_blend_func_extended, "index layout qualifier on fragment output");
             // "It is also a compile-time error if a fragment shader sets a layout index to less than 0 or greater than 1."
             if (value < 0 || value > 1) {
                 value = 0;
@@ -6056,6 +6110,8 @@ void TParseContext::checkNoShaderLayouts(const TSourceLoc& loc, const TShaderQua
         error(loc, message, "num_views", "");
     if (shaderQualifiers.interlockOrdering != EioNone)
         error(loc, message, TQualifier::getInterlockOrderingString(shaderQualifiers.interlockOrdering), "");
+    if (shaderQualifiers.layoutPrimitiveCulling)
+        error(loc, "can only be applied as standalone", "primitive_culling", "");
 #endif
 }
 
@@ -6135,7 +6191,10 @@ const TFunction* TParseContext::findFunction(const TSourceLoc& loc, const TFunct
                                 extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float32) ||
                                 extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float64);
 
-    if (isEsProfile() || version < 120)
+    if (isEsProfile())
+        function = (extensionTurnedOn(E_GL_EXT_shader_implicit_conversions) && version >= 310) ?
+                    findFunction120(loc, call, builtIn) : findFunctionExact(loc, call, builtIn);
+    else if (version < 120)
         function = findFunctionExact(loc, call, builtIn);
     else if (version < 400)
         function = extensionTurnedOn(E_GL_ARB_gpu_shader_fp64) ? findFunction400(loc, call, builtIn) : findFunction120(loc, call, builtIn);
@@ -7542,6 +7601,8 @@ void TParseContext::declareBlock(const TSourceLoc& loc, TTypeList& typeList, con
     fixBlockLocations(loc, currentBlockQualifier, typeList, memberWithLocation, memberWithoutLocation);
     fixXfbOffsets(currentBlockQualifier, typeList);
     fixBlockUniformOffsets(currentBlockQualifier, typeList);
+    fixBlockUniformLayoutMatrix(currentBlockQualifier, &typeList, nullptr);
+    fixBlockUniformLayoutPacking(currentBlockQualifier, &typeList, nullptr);
     for (unsigned int member = 0; member < typeList.size(); ++member)
         layoutTypeCheck(typeList[member].loc, *typeList[member].type);
 
@@ -7912,6 +7973,101 @@ void TParseContext::fixBlockUniformOffsets(TQualifier& qualifier, TTypeList& typ
     }
 }
 
+//
+// Spread LayoutMatrix to uniform block member, if a uniform block member is a struct,
+// we need spread LayoutMatrix to this struct member too. and keep this rule for recursive.
+//
+void TParseContext::fixBlockUniformLayoutMatrix(TQualifier& qualifier, TTypeList* originTypeList,
+                                                TTypeList* tmpTypeList)
+{
+    assert(tmpTypeList == nullptr || originTypeList->size() == tmpTypeList->size());
+    for (unsigned int member = 0; member < originTypeList->size(); ++member) {
+        if (qualifier.layoutPacking != ElpNone) {
+            if (tmpTypeList == nullptr) {
+                if (((*originTypeList)[member].type->isMatrix() ||
+                     (*originTypeList)[member].type->getBasicType() == EbtStruct) &&
+                    (*originTypeList)[member].type->getQualifier().layoutMatrix == ElmNone) {
+                    (*originTypeList)[member].type->getQualifier().layoutMatrix = qualifier.layoutMatrix;
+                }
+            } else {
+                if (((*tmpTypeList)[member].type->isMatrix() ||
+                     (*tmpTypeList)[member].type->getBasicType() == EbtStruct) &&
+                    (*tmpTypeList)[member].type->getQualifier().layoutMatrix == ElmNone) {
+                    (*tmpTypeList)[member].type->getQualifier().layoutMatrix = qualifier.layoutMatrix;
+                }
+            }
+        }
+
+        if ((*originTypeList)[member].type->getBasicType() == EbtStruct) {
+            TQualifier* memberQualifier = nullptr;
+            // block member can be declare a matrix style, so it should be update to the member's style
+            if ((*originTypeList)[member].type->getQualifier().layoutMatrix == ElmNone) {
+                memberQualifier = &qualifier;
+            } else {
+                memberQualifier = &((*originTypeList)[member].type->getQualifier());
+            }
+
+            const TType* tmpType = tmpTypeList == nullptr ?
+                (*originTypeList)[member].type->clone() : (*tmpTypeList)[member].type;
+
+            fixBlockUniformLayoutMatrix(*memberQualifier, (*originTypeList)[member].type->getWritableStruct(),
+                                        tmpType->getWritableStruct());
+
+            const TTypeList* structure = recordStructCopy(matrixFixRecord, (*originTypeList)[member].type, tmpType);
+
+            if (tmpTypeList == nullptr) {
+                (*originTypeList)[member].type->setStruct(const_cast<TTypeList*>(structure));
+            }
+            if (tmpTypeList != nullptr) {
+                (*tmpTypeList)[member].type->setStruct(const_cast<TTypeList*>(structure));
+            }
+        }
+    }
+}
+
+//
+// Spread LayoutPacking to block member, if a  block member is a struct, we need spread LayoutPacking to
+// this struct member too. and keep this rule for recursive.
+//
+void TParseContext::fixBlockUniformLayoutPacking(TQualifier& qualifier, TTypeList* originTypeList,
+                                                 TTypeList* tmpTypeList)
+{
+    assert(tmpTypeList == nullptr || originTypeList->size() == tmpTypeList->size());
+    for (unsigned int member = 0; member < originTypeList->size(); ++member) {
+        if (qualifier.layoutPacking != ElpNone) {
+            if (tmpTypeList == nullptr) {
+                if ((*originTypeList)[member].type->getQualifier().layoutPacking == ElpNone) {
+                    (*originTypeList)[member].type->getQualifier().layoutPacking = qualifier.layoutPacking;
+                }
+            } else {
+                if ((*tmpTypeList)[member].type->getQualifier().layoutPacking == ElpNone) {
+                    (*tmpTypeList)[member].type->getQualifier().layoutPacking = qualifier.layoutPacking;
+                }
+            }
+        }
+
+        if ((*originTypeList)[member].type->getBasicType() == EbtStruct) {
+            // Deep copy the type in pool.
+            // Because, struct use in different block may have different layout qualifier.
+            // We have to new a object to distinguish between them.
+            const TType* tmpType = tmpTypeList == nullptr ?
+                (*originTypeList)[member].type->clone() : (*tmpTypeList)[member].type;
+
+            fixBlockUniformLayoutPacking(qualifier, (*originTypeList)[member].type->getWritableStruct(),
+                                         tmpType->getWritableStruct());
+
+            const TTypeList* structure = recordStructCopy(packingFixRecord, (*originTypeList)[member].type, tmpType);
+
+            if (tmpTypeList == nullptr) {
+                (*originTypeList)[member].type->setStruct(const_cast<TTypeList*>(structure));
+            }
+            if (tmpTypeList != nullptr) {
+                (*tmpTypeList)[member].type->setStruct(const_cast<TTypeList*>(structure));
+            }
+        }
+    }
+}
+
 // For an identifier that is already declared, add more qualification to it.
 void TParseContext::addQualifierToExisting(const TSourceLoc& loc, TQualifier qualifier, const TString& identifier)
 {
@@ -8220,6 +8376,16 @@ void TParseContext::updateStandaloneQualifierDefaults(const TSourceLoc& loc, con
     {
         checkIoArraysConsistency(loc);
     }
+
+    if (publicType.shaderQualifiers.layoutPrimitiveCulling) {
+        if (publicType.qualifier.storage != EvqTemporary)
+            error(loc, "layout qualifier can not have storage qualifiers", "primitive_culling","", "");
+        else {
+            intermediate.setLayoutPrimitiveCulling();
+        }
+        // Exit early as further checks are not valid
+        return;
+    }
 #endif 
     const TQualifier& qualifier = publicType.qualifier;
 
@@ -8370,5 +8536,43 @@ TIntermNode* TParseContext::addSwitch(const TSourceLoc& loc, TIntermTyped* expre
     return switchNode;
 }
 
+//
+// When a struct used in block, and has it's own layout packing, layout matrix,
+// record the origin structure of a struct to map, and Record the structure copy to the copy table,
+//
+const TTypeList* TParseContext::recordStructCopy(TStructRecord& record, const TType* originType, const TType* tmpType)
+{
+    size_t memberCount = tmpType->getStruct()->size();
+    size_t originHash = 0, tmpHash = 0;
+    std::hash<size_t> hasher;
+    for (size_t i = 0; i < memberCount; i++) {
+        size_t originMemberHash = hasher(originType->getStruct()->at(i).type->getQualifier().layoutPacking +
+                                         originType->getStruct()->at(i).type->getQualifier().layoutMatrix);
+        size_t tmpMemberHash = hasher(tmpType->getStruct()->at(i).type->getQualifier().layoutPacking +
+                                      tmpType->getStruct()->at(i).type->getQualifier().layoutMatrix);
+        originHash = hasher((originHash ^ originMemberHash) << 1);
+        tmpHash = hasher((tmpHash ^ tmpMemberHash) << 1);
+    }
+    const TTypeList* originStruct = originType->getStruct();
+    const TTypeList* tmpStruct = tmpType->getStruct();
+    if (originHash != tmpHash) {
+        auto fixRecords = record.find(originStruct);
+        if (fixRecords != record.end()) {
+            auto fixRecord = fixRecords->second.find(tmpHash);
+            if (fixRecord != fixRecords->second.end()) {
+                return fixRecord->second;
+            } else {
+                record[originStruct][tmpHash] = tmpStruct;
+                return tmpStruct;
+            }
+        } else {
+            record[originStruct] = std::map<size_t, const TTypeList*>();
+            record[originStruct][tmpHash] = tmpStruct;
+            return tmpStruct;
+        }
+    }
+    return originStruct;
+}
+
 } // end namespace glslang
 
diff --git a/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.h b/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.h
index 20df64053..8b262c946 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.h
+++ b/src/libraries/glslang/glslang/MachineIndependent/ParseHelper.h
@@ -68,6 +68,7 @@ class TScanContext;
 class TPpContext;
 
 typedef std::set<int> TIdSetType;
+typedef std::map<const TTypeList*, std::map<size_t, const TTypeList*>> TStructRecord;
 
 //
 // Sharable code (as well as what's in TParseVersions) across
@@ -315,6 +316,7 @@ public:
     TIntermTyped* handleBinaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* left, TIntermTyped* right);
     TIntermTyped* handleUnaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* childNode);
     TIntermTyped* handleDotDereference(const TSourceLoc&, TIntermTyped* base, const TString& field);
+    TIntermTyped* handleDotSwizzle(const TSourceLoc&, TIntermTyped* base, const TString& field);
     void blockMemberExtensionCheck(const TSourceLoc&, const TIntermTyped* base, int member, const TString& memberName);
     TFunction* handleFunctionDeclarator(const TSourceLoc&, TFunction& function, bool prototype);
     TIntermAggregate* handleFunctionDefinition(const TSourceLoc&, TFunction&);
@@ -417,12 +419,15 @@ public:
     void fixBlockLocations(const TSourceLoc&, TQualifier&, TTypeList&, bool memberWithLocation, bool memberWithoutLocation);
     void fixXfbOffsets(TQualifier&, TTypeList&);
     void fixBlockUniformOffsets(TQualifier&, TTypeList&);
+    void fixBlockUniformLayoutMatrix(TQualifier&, TTypeList*, TTypeList*);
+    void fixBlockUniformLayoutPacking(TQualifier&, TTypeList*, TTypeList*);
     void addQualifierToExisting(const TSourceLoc&, TQualifier, const TString& identifier);
     void addQualifierToExisting(const TSourceLoc&, TQualifier, TIdentifierList&);
     void invariantCheck(const TSourceLoc&, const TQualifier&);
     void updateStandaloneQualifierDefaults(const TSourceLoc&, const TPublicType&);
     void wrapupSwitchSubsequence(TIntermAggregate* statements, TIntermNode* branchNode);
     TIntermNode* addSwitch(const TSourceLoc&, TIntermTyped* expression, TIntermAggregate* body);
+    const TTypeList* recordStructCopy(TStructRecord&, const TType*, const TType*);
 
 #ifndef GLSLANG_WEB
     TAttributeType attributeFromName(const TString& name) const;
@@ -483,6 +488,8 @@ protected:
     bool anyIndexLimits;
     TIdSetType inductiveLoopIds;
     TVector<TIntermTyped*> needsIndexLimitationChecking;
+    TStructRecord matrixFixRecord;
+    TStructRecord packingFixRecord;
 
     //
     // Geometry shader input arrays:
diff --git a/src/libraries/glslang/glslang/MachineIndependent/Scan.cpp b/src/libraries/glslang/glslang/MachineIndependent/Scan.cpp
index 69f41c05d..9260c4eae 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/Scan.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/Scan.cpp
@@ -1196,8 +1196,8 @@ int TScanContext::tokenizeIdentifier()
         afterType = true;
         if (parseContext.isEsProfile() || parseContext.version < 150 ||
             (!parseContext.symbolTable.atBuiltInLevel() &&
-              parseContext.version < 400 &&
-             !parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64)))
+              (parseContext.version < 400 && !parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64) &&
+              (parseContext.version < 410 && !parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)))))
             reservedWord();
         return keyword;
 
@@ -1792,7 +1792,9 @@ int TScanContext::dMat()
 
     if (!parseContext.isEsProfile() && (parseContext.version >= 400 ||
         parseContext.symbolTable.atBuiltInLevel() ||
-        (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64))))
+        (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64)) ||
+        (parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)
+         && parseContext.language == EShLangVertex)))
         return keyword;
 
     if (parseContext.isForwardCompatible())
diff --git a/src/libraries/glslang/glslang/MachineIndependent/Versions.cpp b/src/libraries/glslang/glslang/MachineIndependent/Versions.cpp
index 4967fb775..4e755f475 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/Versions.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/Versions.cpp
@@ -64,6 +64,7 @@
 //        checkDeprecated()
 //        requireNotRemoved()
 //        requireExtensions()
+//        extensionRequires()
 //
 //    Typically, only the first two calls are needed.  They go into a code path that
 //    implements Feature F, and will log the proper error/warning messages.  Parsing
@@ -78,9 +79,11 @@
 //     const char* const XXX_extension_X = "XXX_extension_X";
 //
 // 2) Add extension initialization to TParseVersions::initializeExtensionBehavior(),
-//    the first function below:
+//    the first function below and optionally a entry to extensionData for additional
+//    error checks:
 //
 //     extensionBehavior[XXX_extension_X] = EBhDisable;
+//     (Optional) exts[] = {XXX_extension_X, EShTargetSpv_1_4}
 //
 // 3) Add any preprocessor directives etc. in the next function, TParseVersions::getPreamble():
 //
@@ -140,6 +143,8 @@
 //    set of extensions that both enable them and are necessary, given the version of the symbol
 //    table. (There is a different symbol table for each version.)
 //
+// 7) If the extension has additional requirements like minimum SPIR-V version required, add them
+//    to extensionRequires()
 
 #include "parseVersions.h"
 #include "localintermediate.h"
@@ -155,6 +160,20 @@ namespace glslang {
 //
 void TParseVersions::initializeExtensionBehavior()
 {
+    typedef struct {
+        const char *const extensionName;
+        EShTargetLanguageVersion minSpvVersion;
+    } extensionData;
+
+    const extensionData exts[] = { {E_GL_EXT_ray_tracing, EShTargetSpv_1_4} };
+
+    for (int ii = 0; ii < sizeof(exts) / sizeof(exts[0]); ii++) {
+        // Add only extensions which require > spv1.0 to save space in map
+        if (exts[ii].minSpvVersion > EShTargetSpv_1_0) {
+            extensionMinSpv[E_GL_EXT_ray_tracing] = exts[ii].minSpvVersion;
+        }
+    }
+
     extensionBehavior[E_GL_OES_texture_3D]                   = EBhDisable;
     extensionBehavior[E_GL_OES_standard_derivatives]         = EBhDisable;
     extensionBehavior[E_GL_EXT_frag_depth]                   = EBhDisable;
@@ -201,6 +220,9 @@ void TParseVersions::initializeExtensionBehavior()
     extensionBehavior[E_GL_ARB_shader_bit_encoding]          = EBhDisable;
     extensionBehavior[E_GL_ARB_shader_image_size]            = EBhDisable;
     extensionBehavior[E_GL_ARB_shader_storage_buffer_object] = EBhDisable;
+    extensionBehavior[E_GL_ARB_shading_language_packing]     = EBhDisable;
+    extensionBehavior[E_GL_ARB_texture_query_lod]            = EBhDisable;
+    extensionBehavior[E_GL_ARB_vertex_attrib_64bit]          = EBhDisable;
 
     extensionBehavior[E_GL_KHR_shader_subgroup_basic]            = EBhDisable;
     extensionBehavior[E_GL_KHR_shader_subgroup_vote]             = EBhDisable;
@@ -295,6 +317,7 @@ void TParseVersions::initializeExtensionBehavior()
     extensionBehavior[E_GL_OES_tessellation_point_size]  = EBhDisable;
     extensionBehavior[E_GL_OES_texture_buffer]           = EBhDisable;
     extensionBehavior[E_GL_OES_texture_cube_map_array]   = EBhDisable;
+    extensionBehavior[E_GL_EXT_shader_integer_mix]       = EBhDisable;
 
     // EXT extensions
     extensionBehavior[E_GL_EXT_device_group]                = EBhDisable;
@@ -303,6 +326,8 @@ void TParseVersions::initializeExtensionBehavior()
     extensionBehavior[E_GL_EXT_ray_tracing]                 = EBhDisable;
     extensionBehavior[E_GL_EXT_ray_query]                   = EBhDisable;
     extensionBehavior[E_GL_EXT_ray_flags_primitive_culling] = EBhDisable;
+    extensionBehavior[E_GL_EXT_blend_func_extended]         = EBhDisable;
+    extensionBehavior[E_GL_EXT_shader_implicit_conversions] = EBhDisable;
 
     // OVR extensions
     extensionBehavior[E_GL_OVR_multiview]                = EBhDisable;
@@ -324,6 +349,7 @@ void TParseVersions::initializeExtensionBehavior()
     extensionBehavior[E_GL_EXT_shader_subgroup_extended_types_int64]   = EBhDisable;
     extensionBehavior[E_GL_EXT_shader_subgroup_extended_types_float16] = EBhDisable;
 }
+
 #endif // GLSLANG_WEB
 
 // Get code that is not part of a shared symbol table, is specific to this shader,
@@ -362,6 +388,9 @@ void TParseVersions::getPreamble(std::string& preamble)
             "#define GL_EXT_tessellation_point_size 1\n"
             "#define GL_EXT_texture_buffer 1\n"
             "#define GL_EXT_texture_cube_map_array 1\n"
+            "#define GL_EXT_shader_implicit_conversions 1\n"
+            "#define GL_EXT_shader_integer_mix 1\n"
+            "#define GL_EXT_blend_func_extended 1\n"
 
             // OES matching AEP
             "#define GL_OES_geometry_shader 1\n"
@@ -412,12 +441,15 @@ void TParseVersions::getPreamble(std::string& preamble)
             "#define GL_ARB_shader_stencil_export 1\n"
             "#define GL_ARB_sample_shading 1\n"
             "#define GL_ARB_shader_image_size 1\n"
+            "#define GL_ARB_shading_language_packing 1\n"
 //            "#define GL_ARB_cull_distance 1\n"    // present for 4.5, but need extension control over block members
             "#define GL_ARB_post_depth_coverage 1\n"
             "#define GL_ARB_fragment_shader_interlock 1\n"
             "#define GL_ARB_uniform_buffer_object 1\n"
             "#define GL_ARB_shader_bit_encoding 1\n"
             "#define GL_ARB_shader_storage_buffer_object 1\n"
+            "#define GL_ARB_texture_query_lod 1\n"
+            "#define GL_ARB_vertex_attrib_64bit 1\n"
             "#define GL_EXT_shader_non_constant_global_initializers 1\n"
             "#define GL_EXT_shader_image_load_formatted 1\n"
             "#define GL_EXT_post_depth_coverage 1\n"
@@ -819,6 +851,9 @@ void TParseVersions::updateExtensionBehavior(int line, const char* extension, co
     // check if extension is used with correct shader stage
     checkExtensionStage(getCurrentLoc(), extension);
 
+    // check if extension has additional requirements
+    extensionRequires(getCurrentLoc(), extension ,behaviorString);
+
     // update the requested extension
     updateExtensionBehavior(extension, behavior);
 
@@ -916,8 +951,8 @@ void TParseVersions::updateExtensionBehavior(const char* extension, TExtensionBe
         } else {
             if (iter->second == EBhDisablePartial)
                 warn(getCurrentLoc(), "extension is only partially supported:", "#extension", extension);
-            if (behavior == EBhEnable || behavior == EBhRequire)
-                intermediate.addRequestedExtension(extension);
+            if (behavior == EBhEnable || behavior == EBhRequire || behavior == EBhDisable)
+                intermediate.updateRequestedExtension(extension, behavior);
             iter->second = behavior;
         }
     }
@@ -935,6 +970,24 @@ void TParseVersions::checkExtensionStage(const TSourceLoc& loc, const char * con
     }
 }
 
+// Check if extension has additional requirements
+void TParseVersions::extensionRequires(const TSourceLoc &loc, const char * const extension, const char *behaviorString)
+{
+    bool isEnabled = false;
+    if (!strcmp("require", behaviorString))
+        isEnabled = true;
+    else if (!strcmp("enable", behaviorString))
+        isEnabled = true;
+
+    if (isEnabled) {
+        unsigned int minSpvVersion = 0;
+        auto iter = extensionMinSpv.find(TString(extension));
+        if (iter != extensionMinSpv.end())
+            minSpvVersion = iter->second;
+        requireSpv(loc, extension, minSpvVersion);
+    }
+}
+
 // Call for any operation needing full GLSL integer data-type support.
 void TParseVersions::fullIntegerCheck(const TSourceLoc& loc, const char* op)
 {
@@ -945,8 +998,13 @@ void TParseVersions::fullIntegerCheck(const TSourceLoc& loc, const char* op)
 // Call for any operation needing GLSL double data-type support.
 void TParseVersions::doubleCheck(const TSourceLoc& loc, const char* op)
 {
+
     //requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
-    profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, E_GL_ARB_gpu_shader_fp64, op);
+    if (language == EShLangVertex) {
+        const char* const f64_Extensions[] = {E_GL_ARB_gpu_shader_fp64, E_GL_ARB_vertex_attrib_64bit};
+        profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, 2, f64_Extensions, op);
+    } else
+        profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, E_GL_ARB_gpu_shader_fp64, op);
 }
 
 // Call for any operation needing GLSL float16 data-type support.
@@ -1187,5 +1245,12 @@ void TParseVersions::requireSpv(const TSourceLoc& loc, const char* op)
         error(loc, "only allowed when generating SPIR-V", op, "");
 #endif
 }
+void TParseVersions::requireSpv(const TSourceLoc& loc, const char *op, unsigned int version)
+{
+#ifndef GLSLANG_WEB
+    if (spvVersion.spv < version)
+        error(loc, "not supported for current targeted SPIR-V version", op, "");
+#endif
+}
 
 } // end namespace glslang
diff --git a/src/libraries/glslang/glslang/MachineIndependent/Versions.h b/src/libraries/glslang/glslang/MachineIndependent/Versions.h
index 5343dedd5..29bb44933 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/Versions.h
+++ b/src/libraries/glslang/glslang/MachineIndependent/Versions.h
@@ -36,6 +36,7 @@
 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.
 //
+
 #ifndef _VERSIONS_INCLUDED_
 #define _VERSIONS_INCLUDED_
 
@@ -52,7 +53,7 @@
 // Don't maintain an ordinal set of enums (0,1,2,3...) to avoid all possible
 // defects from mixing the two different forms.
 //
-typedef enum {
+typedef enum : unsigned {
     EBadProfile           = 0,
     ENoProfile            = (1 << 0), // only for desktop, before profiles showed up
     ECoreProfile          = (1 << 1),
@@ -156,6 +157,9 @@ const char* const E_GL_ARB_sample_shading               = "GL_ARB_sample_shading
 const char* const E_GL_ARB_shader_bit_encoding          = "GL_ARB_shader_bit_encoding";
 const char* const E_GL_ARB_shader_image_size            = "GL_ARB_shader_image_size";
 const char* const E_GL_ARB_shader_storage_buffer_object = "GL_ARB_shader_storage_buffer_object";
+const char* const E_GL_ARB_shading_language_packing     = "GL_ARB_shading_language_packing";
+const char* const E_GL_ARB_texture_query_lod            = "GL_ARB_texture_query_lod";
+const char* const E_GL_ARB_vertex_attrib_64bit          = "GL_ARB_vertex_attrib_64bit";
 
 const char* const E_GL_KHR_shader_subgroup_basic            = "GL_KHR_shader_subgroup_basic";
 const char* const E_GL_KHR_shader_subgroup_vote             = "GL_KHR_shader_subgroup_vote";
@@ -194,6 +198,8 @@ const char* const E_GL_EXT_debug_printf                     = "GL_EXT_debug_prin
 const char* const E_GL_EXT_ray_tracing                      = "GL_EXT_ray_tracing";
 const char* const E_GL_EXT_ray_query                        = "GL_EXT_ray_query";
 const char* const E_GL_EXT_ray_flags_primitive_culling      = "GL_EXT_ray_flags_primitive_culling";
+const char* const E_GL_EXT_blend_func_extended              = "GL_EXT_blend_func_extended";
+const char* const E_GL_EXT_shader_implicit_conversions      = "GL_EXT_shader_implicit_conversions";
 
 // Arrays of extensions for the above viewportEXTs duplications
 
@@ -265,6 +271,7 @@ const char* const E_GL_EXT_tessellation_shader                  = "GL_EXT_tessel
 const char* const E_GL_EXT_tessellation_point_size              = "GL_EXT_tessellation_point_size";
 const char* const E_GL_EXT_texture_buffer                       = "GL_EXT_texture_buffer";
 const char* const E_GL_EXT_texture_cube_map_array               = "GL_EXT_texture_cube_map_array";
+const char* const E_GL_EXT_shader_integer_mix                   = "GL_EXT_shader_integer_mix"; 
 
 // OES matching AEP
 const char* const E_GL_OES_geometry_shader                      = "GL_OES_geometry_shader";
diff --git a/src/libraries/glslang/glslang/MachineIndependent/intermOut.cpp b/src/libraries/glslang/glslang/MachineIndependent/intermOut.cpp
index 593ed6f91..86edcfe4d 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/intermOut.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/intermOut.cpp
@@ -1466,7 +1466,7 @@ void TIntermediate::output(TInfoSink& infoSink, bool tree)
     infoSink.debug << "Shader version: " << version << "\n";
     if (requestedExtensions.size() > 0) {
         for (auto extIt = requestedExtensions.begin(); extIt != requestedExtensions.end(); ++extIt)
-            infoSink.debug << "Requested " << *extIt << "\n";
+            infoSink.debug << "Requested " << extIt->first << "\n";
     }
 
     if (xfbMode)
diff --git a/src/libraries/glslang/glslang/MachineIndependent/iomapper.cpp b/src/libraries/glslang/glslang/MachineIndependent/iomapper.cpp
index 9dc1da2c9..fadcb1bf9 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/iomapper.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/iomapper.cpp
@@ -309,26 +309,43 @@ struct TSymbolValidater
         TIntermSymbol* base = ent1.symbol;
         const TType& type = ent1.symbol->getType();
         const TString& name = entKey.first;
-        TString mangleName1, mangleName2;
-        type.appendMangledName(mangleName1);
         EShLanguage stage = ent1.stage;
+        TString mangleName1, mangleName2;
         if (currentStage != stage) {
             preStage = currentStage;
             currentStage = stage;
             nextStage = EShLangCount;
             for (int i = currentStage + 1; i < EShLangCount; i++) {
-                if (inVarMaps[i] != nullptr)
+                if (inVarMaps[i] != nullptr) {
                     nextStage = static_cast<EShLanguage>(i);
+                    break;
+                }
             }
         }
+
+        if (type.getQualifier().isArrayedIo(stage)) {
+            TType subType(type, 0);
+            subType.appendMangledName(mangleName1);
+        } else {
+            type.appendMangledName(mangleName1);
+        }
+
         if (base->getQualifier().storage == EvqVaryingIn) {
             // validate stage in;
             if (preStage == EShLangCount)
                 return;
+            if (name == "gl_PerVertex")
+                return;
             if (outVarMaps[preStage] != nullptr) {
                 auto ent2 = outVarMaps[preStage]->find(name);
                 if (ent2 != outVarMaps[preStage]->end()) {
-                    ent2->second.symbol->getType().appendMangledName(mangleName2);
+                    if (ent2->second.symbol->getType().getQualifier().isArrayedIo(preStage)) {
+                        TType subType(ent2->second.symbol->getType(), 0);
+                        subType.appendMangledName(mangleName2);
+                    }
+                    else {
+                        ent2->second.symbol->getType().appendMangledName(mangleName2);
+                    }
                     if (mangleName1 == mangleName2)
                         return;
                     else {
@@ -343,10 +360,18 @@ struct TSymbolValidater
             // validate stage out;
             if (nextStage == EShLangCount)
                 return;
+            if (name == "gl_PerVertex")
+                return;
             if (outVarMaps[nextStage] != nullptr) {
                 auto ent2 = inVarMaps[nextStage]->find(name);
                 if (ent2 != inVarMaps[nextStage]->end()) {
-                    ent2->second.symbol->getType().appendMangledName(mangleName2);
+                    if (ent2->second.symbol->getType().getQualifier().isArrayedIo(nextStage)) {
+                        TType subType(ent2->second.symbol->getType(), 0);
+                        subType.appendMangledName(mangleName2);
+                    }
+                    else {
+                        ent2->second.symbol->getType().appendMangledName(mangleName2);
+                    }
                     if (mangleName1 == mangleName2)
                         return;
                     else {
@@ -579,10 +604,7 @@ TDefaultGlslIoResolver::TDefaultGlslIoResolver(const TIntermediate& intermediate
 
 int TDefaultGlslIoResolver::resolveInOutLocation(EShLanguage stage, TVarEntryInfo& ent) {
     const TType& type = ent.symbol->getType();
-    const TString& name = IsAnonymous(ent.symbol->getName()) ?
-                            ent.symbol->getType().getTypeName()
-                            :
-                            ent.symbol->getName();
+    const TString& name = getAccessName(ent.symbol);
     if (currentStage != stage) {
         preStage = currentStage;
         currentStage = stage;
@@ -630,7 +652,7 @@ int TDefaultGlslIoResolver::resolveInOutLocation(EShLanguage stage, TVarEntryInf
         TVarSlotMap::iterator iter = storageSlotMap[resourceKey].find(name);
         if (iter != storageSlotMap[resourceKey].end()) {
             // If interface resource be found, set it has location and this symbol's new location
-            // equal the symbol's explicit location declarated in pre or next stage.
+            // equal the symbol's explicit location declaration in pre or next stage.
             //
             // vs:    out vec4 a;
             // fs:    layout(..., location = 3,...) in vec4 a;
@@ -666,10 +688,7 @@ int TDefaultGlslIoResolver::resolveInOutLocation(EShLanguage stage, TVarEntryInf
 
 int TDefaultGlslIoResolver::resolveUniformLocation(EShLanguage /*stage*/, TVarEntryInfo& ent) {
     const TType& type = ent.symbol->getType();
-    const TString& name = IsAnonymous(ent.symbol->getName()) ?
-                            ent.symbol->getType().getTypeName()
-                            :
-                            ent.symbol->getName();
+    const TString& name = getAccessName(ent.symbol);
     // kick out of not doing this
     if (! doAutoLocationMapping()) {
         return ent.newLocation = -1;
@@ -712,7 +731,7 @@ int TDefaultGlslIoResolver::resolveUniformLocation(EShLanguage /*stage*/, TVarEn
         TVarSlotMap::iterator iter = slotMap.find(name);
         if (iter != slotMap.end()) {
             // If uniform resource be found, set it has location and this symbol's new location
-            // equal the uniform's explicit location declarated in other stage.
+            // equal the uniform's explicit location declaration in other stage.
             //
             // vs:    uniform vec4 a;
             // fs:    layout(..., location = 3,...) uniform vec4 a;
@@ -720,7 +739,7 @@ int TDefaultGlslIoResolver::resolveUniformLocation(EShLanguage /*stage*/, TVarEn
             location = iter->second;
         }
         if (! hasLocation) {
-            // No explicit location declaraten in other stage.
+            // No explicit location declaration in other stage.
             // So we should find a new slot for this uniform.
             //
             // vs:    uniform vec4 a;
@@ -729,7 +748,7 @@ int TDefaultGlslIoResolver::resolveUniformLocation(EShLanguage /*stage*/, TVarEn
             storageSlotMap[resourceKey][name] = location;
         }
     } else {
-        // the first uniform declarated in a program.
+        // the first uniform declaration in a program.
         TVarSlotMap varSlotMap;
         location = getFreeSlot(resourceKey, 0, size);
         varSlotMap[name] = location;
@@ -740,11 +759,8 @@ int TDefaultGlslIoResolver::resolveUniformLocation(EShLanguage /*stage*/, TVarEn
 
 int TDefaultGlslIoResolver::resolveBinding(EShLanguage /*stage*/, TVarEntryInfo& ent) {
     const TType& type = ent.symbol->getType();
-    const TString& name = IsAnonymous(ent.symbol->getName()) ?
-                            ent.symbol->getType().getTypeName()
-                            :
-                            ent.symbol->getName();
-    // On OpenGL arrays of opaque types take a seperate binding for each element
+    const TString& name = getAccessName(ent.symbol);
+    // On OpenGL arrays of opaque types take a separate binding for each element
     int numBindings = intermediate.getSpv().openGl != 0 && type.isSizedArray() ? type.getCumulativeArraySize() : 1;
     TResourceType resource = getResourceType(type);
     // don't need to handle uniform symbol, it will be handled in resolveUniformLocation
@@ -818,10 +834,7 @@ void TDefaultGlslIoResolver::endCollect(EShLanguage /*stage*/) {
 
 void TDefaultGlslIoResolver::reserverStorageSlot(TVarEntryInfo& ent, TInfoSink& infoSink) {
     const TType& type = ent.symbol->getType();
-    const TString& name = IsAnonymous(ent.symbol->getName()) ?
-                            ent.symbol->getType().getTypeName()
-                            :
-                            ent.symbol->getName();
+    const TString& name = getAccessName(ent.symbol);
     TStorageQualifier storage = type.getQualifier().storage;
     EShLanguage stage(EShLangCount);
     switch (storage) {
@@ -881,10 +894,7 @@ void TDefaultGlslIoResolver::reserverStorageSlot(TVarEntryInfo& ent, TInfoSink&
 
 void TDefaultGlslIoResolver::reserverResourceSlot(TVarEntryInfo& ent, TInfoSink& infoSink) {
     const TType& type = ent.symbol->getType();
-    const TString& name = IsAnonymous(ent.symbol->getName()) ?
-                            ent.symbol->getType().getTypeName()
-                            :
-                            ent.symbol->getName();
+    const TString& name = getAccessName(ent.symbol);
     int resource = getResourceType(type);
     if (type.getQualifier().hasBinding()) {
         TVarSlotMap& varSlotMap = resourceSlotMap[resource];
@@ -907,6 +917,13 @@ void TDefaultGlslIoResolver::reserverResourceSlot(TVarEntryInfo& ent, TInfoSink&
     }
 }
 
+const TString& TDefaultGlslIoResolver::getAccessName(const TIntermSymbol* symbol)
+{
+    return symbol->getBasicType() == EbtBlock ?
+        symbol->getType().getTypeName() :
+        symbol->getName();
+}
+
 //TDefaultGlslIoResolver end
 
 /*
diff --git a/src/libraries/glslang/glslang/MachineIndependent/iomapper.h b/src/libraries/glslang/glslang/MachineIndependent/iomapper.h
index 13a8932b9..7ca18b8a5 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/iomapper.h
+++ b/src/libraries/glslang/glslang/MachineIndependent/iomapper.h
@@ -203,6 +203,7 @@ public:
     void endCollect(EShLanguage) override;
     void reserverStorageSlot(TVarEntryInfo& ent, TInfoSink& infoSink) override;
     void reserverResourceSlot(TVarEntryInfo& ent, TInfoSink& infoSink) override;
+    const TString& getAccessName(const TIntermSymbol*);
     // in/out symbol and uniform symbol are stored in the same resourceSlotMap, the storage key is used to identify each type of symbol.
     // We use stage and storage qualifier to construct a storage key. it can help us identify the same storage resource used in different stage.
     // if a resource is a program resource and we don't need know it usage stage, we can use same stage to build storage key.
@@ -238,12 +239,13 @@ typedef std::map<TString, TVarEntryInfo> TVarLiveMap;
 // In the future, if the vc++ compiler can handle such a situation,
 // this part of the code will be removed.
 struct TVarLivePair : std::pair<const TString, TVarEntryInfo> {
-    TVarLivePair(std::pair<const TString, TVarEntryInfo>& _Right) : pair(_Right.first, _Right.second) {}
+    TVarLivePair(const std::pair<const TString, TVarEntryInfo>& _Right) : pair(_Right.first, _Right.second) {}
     TVarLivePair& operator=(const TVarLivePair& _Right) {
         const_cast<TString&>(first) = _Right.first;
         second = _Right.second;
         return (*this);
     }
+    TVarLivePair(const TVarLivePair& src) : pair(src) { }
 };
 typedef std::vector<TVarLivePair> TVarLiveVector;
 
diff --git a/src/libraries/glslang/glslang/MachineIndependent/linkValidate.cpp b/src/libraries/glslang/glslang/MachineIndependent/linkValidate.cpp
index dcb1cc8cb..96ea46876 100755
--- a/src/libraries/glslang/glslang/MachineIndependent/linkValidate.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/linkValidate.cpp
@@ -153,7 +153,7 @@ void TIntermediate::mergeModes(TInfoSink& infoSink, TIntermediate& unit)
 
     if (vertices == TQualifier::layoutNotSet)
         vertices = unit.vertices;
-    else if (vertices != unit.vertices) {
+    else if (unit.vertices != TQualifier::layoutNotSet && vertices != unit.vertices) {
         if (language == EShLangGeometry || language == EShLangMeshNV)
             error(infoSink, "Contradictory layout max_vertices values");
         else if (language == EShLangTessControl)
@@ -172,12 +172,12 @@ void TIntermediate::mergeModes(TInfoSink& infoSink, TIntermediate& unit)
 
     if (inputPrimitive == ElgNone)
         inputPrimitive = unit.inputPrimitive;
-    else if (inputPrimitive != unit.inputPrimitive)
+    else if (unit.inputPrimitive != ElgNone && inputPrimitive != unit.inputPrimitive)
         error(infoSink, "Contradictory input layout primitives");
 
     if (outputPrimitive == ElgNone)
         outputPrimitive = unit.outputPrimitive;
-    else if (outputPrimitive != unit.outputPrimitive)
+    else if (unit.outputPrimitive != ElgNone && outputPrimitive != unit.outputPrimitive)
         error(infoSink, "Contradictory output layout primitives");
 
     if (originUpperLeft != unit.originUpperLeft || pixelCenterInteger != unit.pixelCenterInteger)
@@ -1550,7 +1550,9 @@ int TIntermediate::getBaseAlignment(const TType& type, int& size, int& stride, T
         RoundToPow2(size, alignment);
         stride = size;  // uses full matrix size for stride of an array of matrices (not quite what rule 6/8, but what's expected)
                         // uses the assumption for rule 10 in the comment above
-        size = stride * type.getOuterArraySize();
+        // use one element to represent the last member of SSBO which is unsized array
+        int arraySize = (type.isUnsizedArray() && (type.getOuterArraySize() == 0)) ? 1 : type.getOuterArraySize();
+        size = stride * arraySize;
         return alignment;
     }
 
diff --git a/src/libraries/glslang/glslang/MachineIndependent/localintermediate.h b/src/libraries/glslang/glslang/MachineIndependent/localintermediate.h
index 66f5a88ad..a3ff88683 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/localintermediate.h
+++ b/src/libraries/glslang/glslang/MachineIndependent/localintermediate.h
@@ -265,6 +265,7 @@ public:
         computeDerivativeMode(LayoutDerivativeNone),
         primitives(TQualifier::layoutNotSet),
         numTaskNVBlocks(0),
+        layoutPrimitiveCulling(false),
         autoMapBindings(false),
         autoMapLocations(false),
         flattenUniformArrays(false),
@@ -356,8 +357,15 @@ public:
     }
     const SpvVersion& getSpv() const { return spvVersion; }
     EShLanguage getStage() const { return language; }
-    void addRequestedExtension(const char* extension) { requestedExtensions.insert(extension); }
-    const std::set<std::string>& getRequestedExtensions() const { return requestedExtensions; }
+    void updateRequestedExtension(const char* extension, TExtensionBehavior behavior) { 
+        if(requestedExtensions.find(extension) != requestedExtensions.end()) {
+            requestedExtensions[extension] = behavior; 
+        } else {
+            requestedExtensions.insert(std::make_pair(extension, behavior)); 
+        }
+    }
+
+    const std::map<std::string, TExtensionBehavior>& getRequestedExtensions() const { return requestedExtensions; }
 
     void setTreeRoot(TIntermNode* r) { treeRoot = r; }
     TIntermNode* getTreeRoot() const { return treeRoot; }
@@ -392,7 +400,7 @@ public:
     void setSource(EShSource s) { source = s; }
     EShSource getSource() const { return source; }
 #else
-    void setSource(EShSource s) { assert(s == EShSourceGlsl); }
+    void setSource(EShSource s) { assert(s == EShSourceGlsl); (void)s; }
     EShSource getSource() const { return EShSourceGlsl; }
 #endif
 
@@ -735,6 +743,8 @@ public:
     void setLayoutDerivativeMode(ComputeDerivativeMode mode) { computeDerivativeMode = mode; }
     bool hasLayoutDerivativeModeNone() const { return computeDerivativeMode != LayoutDerivativeNone; }
     ComputeDerivativeMode getLayoutDerivativeModeNone() const { return computeDerivativeMode; }
+    void setLayoutPrimitiveCulling() { layoutPrimitiveCulling = true; }
+    bool getLayoutPrimitiveCulling() const { return layoutPrimitiveCulling; }
     bool setPrimitives(int m)
     {
         if (primitives != TQualifier::layoutNotSet)
@@ -902,7 +912,13 @@ protected:
 #ifdef GLSLANG_WEB
     bool extensionRequested(const char *extension) const { return false; }
 #else
-    bool extensionRequested(const char *extension) const {return requestedExtensions.find(extension) != requestedExtensions.end();}
+    bool extensionRequested(const char *extension) const {
+        auto it = requestedExtensions.find(extension);
+        if (it != requestedExtensions.end()) {
+            return (it->second == EBhDisable) ? false : true;
+        }
+        return false;
+    }
 #endif
 
     static const char* getResourceName(TResourceType);
@@ -917,7 +933,7 @@ protected:
     int version;                                // source version
     SpvVersion spvVersion;
     TIntermNode* treeRoot;
-    std::set<std::string> requestedExtensions;  // cumulation of all enabled or required extensions; not connected to what subset of the shader used them
+    std::map<std::string, TExtensionBehavior> requestedExtensions;  // cumulation of all enabled or required extensions; not connected to what subset of the shader used them
     TBuiltInResource resources;
     int numEntryPoints;
     int numErrors;
@@ -961,6 +977,7 @@ protected:
     ComputeDerivativeMode computeDerivativeMode;
     int primitives;
     int numTaskNVBlocks;
+    bool layoutPrimitiveCulling;
 
     // Base shift values
     std::array<unsigned int, EResCount> shiftBinding;
diff --git a/src/libraries/glslang/glslang/MachineIndependent/parseVersions.h b/src/libraries/glslang/glslang/MachineIndependent/parseVersions.h
index aa1964fc2..0d006a716 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/parseVersions.h
+++ b/src/libraries/glslang/glslang/MachineIndependent/parseVersions.h
@@ -101,6 +101,7 @@ public:
     void updateExtensionBehavior(int line, const char* const extension, const char* behavior) { }
     void updateExtensionBehavior(const char* const extension, TExtensionBehavior) { }
     void checkExtensionStage(const TSourceLoc&, const char* const extension) { }
+    void extensionRequires(const TSourceLoc&, const char* const extension, const char* behavior) { }
     void fullIntegerCheck(const TSourceLoc&, const char* op) { }
     void doubleCheck(const TSourceLoc&, const char* op) { }
     bool float16Arithmetic() { return false; }
@@ -139,6 +140,7 @@ public:
     virtual bool checkExtensionsRequested(const TSourceLoc&, int numExtensions, const char* const extensions[],
         const char* featureDesc);
     virtual void checkExtensionStage(const TSourceLoc&, const char* const extension);
+    virtual void extensionRequires(const TSourceLoc&, const char* const extension, const char* behavior);
     virtual void fullIntegerCheck(const TSourceLoc&, const char* op);
 
     virtual void unimplemented(const TSourceLoc&, const char* featureDesc);
@@ -170,6 +172,7 @@ public:
     virtual void vulkanRemoved(const TSourceLoc&, const char* op);
     virtual void requireVulkan(const TSourceLoc&, const char* op);
     virtual void requireSpv(const TSourceLoc&, const char* op);
+    virtual void requireSpv(const TSourceLoc&, const char *op, unsigned int version);
 
 
 #if defined(GLSLANG_WEB) && !defined(GLSLANG_WEB_DEVEL)
@@ -222,6 +225,7 @@ public:
 
 protected:
     TMap<TString, TExtensionBehavior> extensionBehavior;    // for each extension string, what its current behavior is set to
+    TMap<TString, unsigned int> extensionMinSpv;            // for each extension string, store minimum spirv required
     EShMessages messages;        // errors/warnings/rule-sets
     int numErrors;               // number of compile-time errors encountered
     TInputScanner* currentScanner;
diff --git a/src/libraries/glslang/glslang/MachineIndependent/reflection.cpp b/src/libraries/glslang/glslang/MachineIndependent/reflection.cpp
index 287693323..d394cf01f 100644
--- a/src/libraries/glslang/glslang/MachineIndependent/reflection.cpp
+++ b/src/libraries/glslang/glslang/MachineIndependent/reflection.cpp
@@ -77,10 +77,10 @@ namespace glslang {
 // This is in the glslang namespace directly so it can be a friend of TReflection.
 //
 
-class TReflectionTraverser : public TLiveTraverser {
+class TReflectionTraverser : public TIntermTraverser {
 public:
     TReflectionTraverser(const TIntermediate& i, TReflection& r) :
-         TLiveTraverser(i), reflection(r) { }
+	                     TIntermTraverser(), intermediate(i), reflection(r), updateStageMasks(true) { }
 
     virtual bool visitBinary(TVisit, TIntermBinary* node);
     virtual void visitSymbol(TIntermSymbol* base);
@@ -92,11 +92,28 @@ public:
         if (processedDerefs.find(&base) == processedDerefs.end()) {
             processedDerefs.insert(&base);
 
+            int blockIndex = -1;
+            int offset     = -1;
+            TList<TIntermBinary*> derefs;
+            TString baseName = base.getName();
+
+            if (base.getType().getBasicType() == EbtBlock) {
+                offset = 0;
+                bool anonymous = IsAnonymous(baseName);
+                const TString& blockName = base.getType().getTypeName();
+
+                if (!anonymous)
+                    baseName = blockName;
+                else
+                    baseName = "";
+
+                blockIndex = addBlockName(blockName, base.getType(), intermediate.getBlockSize(base.getType()));
+            }
+
             // Use a degenerate (empty) set of dereferences to immediately put as at the end of
             // the dereference change expected by blowUpActiveAggregate.
-            TList<TIntermBinary*> derefs;
-            blowUpActiveAggregate(base.getType(), base.getName(), derefs, derefs.end(), -1, -1, 0, 0,
-                                  base.getQualifier().storage, true);
+            blowUpActiveAggregate(base.getType(), baseName, derefs, derefs.end(), offset, blockIndex, 0, -1, 0,
+                                    base.getQualifier().storage, updateStageMasks);
         }
     }
 
@@ -155,9 +172,9 @@ public:
     void getOffsets(const TType& type, TVector<int>& offsets)
     {
         const TTypeList& memberList = *type.getStruct();
-
         int memberSize = 0;
         int offset = 0;
+
         for (size_t m = 0; m < offsets.size(); ++m) {
             // if the user supplied an offset, snap to it now
             if (memberList[m].type->getQualifier().hasOffset())
@@ -233,7 +250,7 @@ public:
     // A value of 0 for arraySize will mean to use the full array's size.
     void blowUpActiveAggregate(const TType& baseType, const TString& baseName, const TList<TIntermBinary*>& derefs,
                                TList<TIntermBinary*>::const_iterator deref, int offset, int blockIndex, int arraySize,
-                               int topLevelArrayStride, TStorageQualifier baseStorage, bool active)
+                               int topLevelArraySize, int topLevelArrayStride, TStorageQualifier baseStorage, bool active)
     {
         // when strictArraySuffix is enabled, we closely follow the rules from ARB_program_interface_query.
         // Broadly:
@@ -262,14 +279,15 @@ public:
                 // Visit all the indices of this array, and for each one add on the remaining dereferencing
                 for (int i = 0; i < std::max(visitNode->getLeft()->getType().getOuterArraySize(), 1); ++i) {
                     TString newBaseName = name;
-                    if (strictArraySuffix && blockParent)
+                    if (terminalType->getBasicType() == EbtBlock) {}
+                    else if (strictArraySuffix && blockParent)
                         newBaseName.append(TString("[0]"));
                     else if (strictArraySuffix || baseType.getBasicType() != EbtBlock)
                         newBaseName.append(TString("[") + String(i) + "]");
                     TList<TIntermBinary*>::const_iterator nextDeref = deref;
                     ++nextDeref;
                     blowUpActiveAggregate(*terminalType, newBaseName, derefs, nextDeref, offset, blockIndex, arraySize,
-                                          topLevelArrayStride, baseStorage, active);
+                                          topLevelArraySize, topLevelArrayStride, baseStorage, active);
 
                     if (offset >= 0)
                         offset += stride;
@@ -282,9 +300,10 @@ public:
                 int stride = getArrayStride(baseType, visitNode->getLeft()->getType());
 
                 index = visitNode->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst();
-                if (strictArraySuffix && blockParent) {
+                if (terminalType->getBasicType() == EbtBlock) {}
+                else if (strictArraySuffix && blockParent)
                     name.append(TString("[0]"));
-                } else if (strictArraySuffix || baseType.getBasicType() != EbtBlock) {
+                else if (strictArraySuffix || baseType.getBasicType() != EbtBlock) {
                     name.append(TString("[") + String(index) + "]");
 
                     if (offset >= 0)
@@ -294,7 +313,10 @@ public:
                 if (topLevelArrayStride == 0)
                     topLevelArrayStride = stride;
 
-                blockParent = false;
+                // expand top-level arrays in blocks with [0] suffix
+                if (topLevelArrayStride != 0 && visitNode->getLeft()->getType().isArray()) {
+                    blockParent = false;
+                }
                 break;
             }
             case EOpIndexDirectStruct:
@@ -304,6 +326,12 @@ public:
                 if (name.size() > 0)
                     name.append(".");
                 name.append((*visitNode->getLeft()->getType().getStruct())[index].type->getFieldName());
+
+                // expand non top-level arrays with [x] suffix
+                if (visitNode->getLeft()->getType().getBasicType() != EbtBlock && terminalType->isArray())
+                {
+                    blockParent = false;
+                }
                 break;
             default:
                 break;
@@ -323,24 +351,27 @@ public:
                 if (offset >= 0)
                     stride = getArrayStride(baseType, *terminalType);
 
-                if (topLevelArrayStride == 0)
-                    topLevelArrayStride = stride;
-
                 int arrayIterateSize = std::max(terminalType->getOuterArraySize(), 1);
 
                 // for top-level arrays in blocks, only expand [0] to avoid explosion of items
-                if (strictArraySuffix && blockParent)
+                if ((strictArraySuffix && blockParent) ||
+                    ((topLevelArraySize == arrayIterateSize) && (topLevelArrayStride == 0))) {
                     arrayIterateSize = 1;
+                }
+
+                if (topLevelArrayStride == 0)
+                    topLevelArrayStride = stride;
 
                 for (int i = 0; i < arrayIterateSize; ++i) {
                     TString newBaseName = name;
-                    newBaseName.append(TString("[") + String(i) + "]");
+                    if (terminalType->getBasicType() != EbtBlock)
+                        newBaseName.append(TString("[") + String(i) + "]");
                     TType derefType(*terminalType, 0);
                     if (offset >= 0)
                         offset = baseOffset + stride * i;
 
                     blowUpActiveAggregate(derefType, newBaseName, derefs, derefs.end(), offset, blockIndex, 0,
-                                          topLevelArrayStride, baseStorage, active);
+                                          topLevelArraySize, topLevelArrayStride, baseStorage, active);
                 }
             } else {
                 // Visit all members of this aggregate, and for each one,
@@ -369,8 +400,31 @@ public:
                         arrayStride = getArrayStride(baseType, derefType);
                     }
 
-                    blowUpActiveAggregate(derefType, newBaseName, derefs, derefs.end(), offset, blockIndex, 0,
-                                          arrayStride, baseStorage, active);
+                    if (topLevelArraySize == -1 && arrayStride == 0 && blockParent)
+                        topLevelArraySize = 1;
+
+                    if (strictArraySuffix && blockParent) {
+                        // if this member is an array, store the top-level array stride but start the explosion from
+                        // the inner struct type.
+                        if (derefType.isArray() && derefType.isStruct()) {
+                            newBaseName.append("[0]");
+                            auto dimSize = derefType.isUnsizedArray() ? 0 : derefType.getArraySizes()->getDimSize(0);
+                            blowUpActiveAggregate(TType(derefType, 0), newBaseName, derefs, derefs.end(), memberOffsets[i],
+                                blockIndex, 0, dimSize, arrayStride, terminalType->getQualifier().storage, false);
+                        }
+                        else if (derefType.isArray()) {
+                            auto dimSize = derefType.isUnsizedArray() ? 0 : derefType.getArraySizes()->getDimSize(0);
+                            blowUpActiveAggregate(derefType, newBaseName, derefs, derefs.end(), memberOffsets[i], blockIndex,
+                                0, dimSize, 0, terminalType->getQualifier().storage, false);
+                        }
+                        else {
+                            blowUpActiveAggregate(derefType, newBaseName, derefs, derefs.end(), memberOffsets[i], blockIndex,
+                                0, 1, 0, terminalType->getQualifier().storage, false);
+                        }
+                    } else {
+                        blowUpActiveAggregate(derefType, newBaseName, derefs, derefs.end(), offset, blockIndex, 0,
+                                              topLevelArraySize, arrayStride, baseStorage, active);
+                    }
                 }
             }
 
@@ -406,6 +460,7 @@ public:
             if ((reflection.options & EShReflectionSeparateBuffers) && terminalType->isAtomic())
                 reflection.atomicCounterUniformIndices.push_back(uniformIndex);
 
+            variables.back().topLevelArraySize = topLevelArraySize;
             variables.back().topLevelArrayStride = topLevelArrayStride;
             
             if ((reflection.options & EShReflectionAllBlockVariables) && active) {
@@ -537,65 +592,17 @@ public:
             if (! anonymous)
                 baseName = blockName;
 
-            if (base->getType().isArray()) {
-                TType derefType(base->getType(), 0);
-
-                assert(! anonymous);
-                for (int e = 0; e < base->getType().getCumulativeArraySize(); ++e)
-                    blockIndex = addBlockName(blockName + "[" + String(e) + "]", derefType,
-                                              intermediate.getBlockSize(base->getType()));
-                baseName.append(TString("[0]"));
-            } else
-                blockIndex = addBlockName(blockName, base->getType(), intermediate.getBlockSize(base->getType()));
+            blockIndex = addBlockName(blockName, base->getType(), intermediate.getBlockSize(base->getType()));
 
             if (reflection.options & EShReflectionAllBlockVariables) {
                 // Use a degenerate (empty) set of dereferences to immediately put as at the end of
                 // the dereference change expected by blowUpActiveAggregate.
                 TList<TIntermBinary*> derefs;
 
-                // because we don't have any derefs, the first thing blowUpActiveAggregate will do is iterate over each
-                // member in the struct definition. This will lose any information about whether the parent was a buffer
-                // block. So if we're using strict array rules which don't expand the first child of a buffer block we
-                // instead iterate over the children here.
-                const bool strictArraySuffix = (reflection.options & EShReflectionStrictArraySuffix);
-                bool blockParent = (base->getType().getBasicType() == EbtBlock && base->getQualifier().storage == EvqBuffer);
-
-                if (strictArraySuffix && blockParent) {
-                    TType structDerefType(base->getType(), 0);
-
-                    const TType &structType = base->getType().isArray() ? structDerefType : base->getType();
-                    const TTypeList& typeList = *structType.getStruct();
-
-                    TVector<int> memberOffsets;
-
-                    memberOffsets.resize(typeList.size());
-                    getOffsets(structType, memberOffsets);
-
-                    for (int i = 0; i < (int)typeList.size(); ++i) {
-                        TType derefType(structType, i);
-                        TString name = baseName;
-                        if (name.size() > 0)
-                            name.append(".");
-                        name.append(typeList[i].type->getFieldName());
-
-                        // if this member is an array, store the top-level array stride but start the explosion from
-                        // the inner struct type.
-                        if (derefType.isArray() && derefType.isStruct()) {
-                            name.append("[0]");
-                            blowUpActiveAggregate(TType(derefType, 0), name, derefs, derefs.end(), memberOffsets[i],
-                                                  blockIndex, 0, getArrayStride(structType, derefType),
-                                                  base->getQualifier().storage, false);
-                        } else {
-                            blowUpActiveAggregate(derefType, name, derefs, derefs.end(), memberOffsets[i], blockIndex,
-                                                  0, 0, base->getQualifier().storage, false);
-                        }
-                    }
-                } else {
-                    // otherwise - if we're not using strict array suffix rules, or this isn't a block so we are
-                    // expanding root arrays anyway, just start the iteration from the base block type.
-                    blowUpActiveAggregate(base->getType(), baseName, derefs, derefs.end(), 0, blockIndex, 0, 0,
+                // otherwise - if we're not using strict array suffix rules, or this isn't a block so we are
+                // expanding root arrays anyway, just start the iteration from the base block type.
+                blowUpActiveAggregate(base->getType(), baseName, derefs, derefs.end(), 0, blockIndex, 0, -1, 0,
                                           base->getQualifier().storage, false);
-                }
             }
         }
 
@@ -626,30 +633,40 @@ public:
             else
                 baseName = base->getName();
         }
-        blowUpActiveAggregate(base->getType(), baseName, derefs, derefs.begin(), offset, blockIndex, arraySize, 0,
+        blowUpActiveAggregate(base->getType(), baseName, derefs, derefs.begin(), offset, blockIndex, arraySize, -1, 0,
                               base->getQualifier().storage, true);
     }
 
     int addBlockName(const TString& name, const TType& type, int size)
     {
-        TReflection::TMapIndexToReflection& blocks = reflection.GetBlockMapForStorage(type.getQualifier().storage);
-
         int blockIndex;
-        TReflection::TNameToIndex::const_iterator it = reflection.nameToIndex.find(name.c_str());
-        if (reflection.nameToIndex.find(name.c_str()) == reflection.nameToIndex.end()) {
-            blockIndex = (int)blocks.size();
-            reflection.nameToIndex[name.c_str()] = blockIndex;
-            blocks.push_back(TObjectReflection(name.c_str(), type, -1, -1, size, -1));
-
-            blocks.back().numMembers = countAggregateMembers(type);
-
-            EShLanguageMask& stages = blocks.back().stages;
-            stages = static_cast<EShLanguageMask>(stages | 1 << intermediate.getStage());
+        if (type.isArray()) {
+            TType derefType(type, 0);
+            for (int e = 0; e < type.getOuterArraySize(); ++e) {
+                uint32_t memberBlockIndex = addBlockName(name + "[" + String(e) + "]", derefType, size);
+                if (e == 0)
+                    blockIndex = memberBlockIndex;
+            }
         } else {
-            blockIndex = it->second;
+            TReflection::TMapIndexToReflection& blocks = reflection.GetBlockMapForStorage(type.getQualifier().storage);
 
-            EShLanguageMask& stages = blocks[blockIndex].stages;
-            stages = static_cast<EShLanguageMask>(stages | 1 << intermediate.getStage());
+            TReflection::TNameToIndex::const_iterator it = reflection.nameToIndex.find(name.c_str());
+            if (reflection.nameToIndex.find(name.c_str()) == reflection.nameToIndex.end()) {
+                blockIndex = (int)blocks.size();
+                reflection.nameToIndex[name.c_str()] = blockIndex;
+                blocks.push_back(TObjectReflection(name.c_str(), type, -1, -1, size, blockIndex));
+
+                blocks.back().numMembers = countAggregateMembers(type);
+
+                EShLanguageMask& stages = blocks.back().stages;
+                stages = static_cast<EShLanguageMask>(stages | 1 << intermediate.getStage());
+            }
+            else {
+                blockIndex = it->second;
+
+                EShLanguageMask& stages = blocks[blockIndex].stages;
+                stages = static_cast<EShLanguageMask>(stages | 1 << intermediate.getStage());
+            }
         }
 
         return blockIndex;
@@ -995,8 +1012,10 @@ public:
         return type.isArray() ? type.getOuterArraySize() : 1;
     }
 
+    const TIntermediate& intermediate;
     TReflection& reflection;
     std::set<const TIntermNode*> processedDerefs;
+    bool updateStageMasks;
 
 protected:
     TReflectionTraverser(TReflectionTraverser&);
@@ -1029,7 +1048,21 @@ bool TReflectionTraverser::visitBinary(TVisit /* visit */, TIntermBinary* node)
 // To reflect non-dereferenced objects.
 void TReflectionTraverser::visitSymbol(TIntermSymbol* base)
 {
-    if (base->getQualifier().storage == EvqUniform)
+    if (base->getQualifier().storage == EvqUniform) {
+        if (base->getBasicType() == EbtBlock) {
+            if (reflection.options & EShReflectionSharedStd140UBO) {
+                addUniform(*base);
+            }
+        } else {
+            addUniform(*base);
+        }
+    }
+
+    // #TODO add std140/layout active rules for ssbo, same with ubo.
+    // Storage buffer blocks will be collected and expanding in this part.
+    if((reflection.options & EShReflectionSharedStd140SSBO) &&
+       (base->getQualifier().storage == EvqBuffer && base->getBasicType() == EbtBlock &&
+        (base->getQualifier().layoutPacking == ElpStd140 || base->getQualifier().layoutPacking == ElpShared)))
         addUniform(*base);
 
     if ((intermediate.getStage() == reflection.firstStage && base->getQualifier().isPipeInput()) ||
@@ -1135,15 +1168,47 @@ bool TReflection::addStage(EShLanguage stage, const TIntermediate& intermediate)
 
     TReflectionTraverser it(intermediate, *this);
 
-    // put the entry point on the list of functions to process
-    it.pushFunction(intermediate.getEntryPointMangledName().c_str());
-
-    // process all the functions
-    while (! it.functions.empty()) {
-        TIntermNode* function = it.functions.back();
-        it.functions.pop_back();
-        function->traverse(&it);
+    for (auto& sequnence : intermediate.getTreeRoot()->getAsAggregate()->getSequence()) {
+        if (sequnence->getAsAggregate() != nullptr) {
+            if (sequnence->getAsAggregate()->getOp() == glslang::EOpLinkerObjects) {
+                it.updateStageMasks = false;
+                TIntermAggregate* linkerObjects = sequnence->getAsAggregate();
+                for (auto& sequnence : linkerObjects->getSequence()) {
+                    auto pNode = sequnence->getAsSymbolNode();
+                    if (pNode != nullptr) {
+                        if ((pNode->getQualifier().storage == EvqUniform &&
+                            (options & EShReflectionSharedStd140UBO)) ||
+                           (pNode->getQualifier().storage == EvqBuffer &&
+                            (options & EShReflectionSharedStd140SSBO))) {
+                            // collect std140 and shared uniform block form AST
+                            if ((pNode->getBasicType() == EbtBlock) &&
+                                ((pNode->getQualifier().layoutPacking == ElpStd140) ||
+                                 (pNode->getQualifier().layoutPacking == ElpShared))) {
+                                   pNode->traverse(&it);
+                            }
+                        }
+                        else if ((options & EShReflectionAllIOVariables) &&
+                            (pNode->getQualifier().isPipeInput() || pNode->getQualifier().isPipeOutput()))
+                        {
+                            pNode->traverse(&it);
+                        }
+                    }
+                }
+            } else {
+                // This traverser will travers all function in AST.
+                // If we want reflect uncalled function, we need set linke message EShMsgKeepUncalled.
+                // When EShMsgKeepUncalled been set to true, all function will be keep in AST, even it is a uncalled function.
+                // This will keep some uniform variables in reflection, if those uniform variables is used in these uncalled function.
+                //
+                // If we just want reflect only live node, we can use a default link message or set EShMsgKeepUncalled false.
+                // When linke message not been set EShMsgKeepUncalled, linker won't keep uncalled function in AST.
+                // So, travers all function node can equivalent to travers live function.
+                it.updateStageMasks = true;
+                sequnence->getAsAggregate()->traverse(&it);
+            }
+        }
     }
+    it.updateStageMasks = true;
 
     buildCounterIndices(intermediate);
     buildUniformStageMask(intermediate);
diff --git a/src/libraries/glslang/glslang/OSDependent/Web/glslang.js.cpp b/src/libraries/glslang/glslang/OSDependent/Web/glslang.js.cpp
index 854d293a3..f2306a609 100644
--- a/src/libraries/glslang/glslang/OSDependent/Web/glslang.js.cpp
+++ b/src/libraries/glslang/glslang/OSDependent/Web/glslang.js.cpp
@@ -141,6 +141,7 @@ const TBuiltInResource DefaultTBuiltInResource = {
     /* .maxTaskWorkGroupSizeY_NV = */ 1,
     /* .maxTaskWorkGroupSizeZ_NV = */ 1,
     /* .maxMeshViewCountNV = */ 4,
+    /* .maxDualSourceDrawBuffersEXT = */ 1,
 
     /* .limits = */ {
         /* .nonInductiveForLoops = */ 1,
diff --git a/src/libraries/glslang/glslang/Public/ShaderLang.h b/src/libraries/glslang/glslang/Public/ShaderLang.h
old mode 100755
new mode 100644
index acb2a0785..7905b3d16
--- a/src/libraries/glslang/glslang/Public/ShaderLang.h
+++ b/src/libraries/glslang/glslang/Public/ShaderLang.h
@@ -68,7 +68,7 @@
 // This should always increase, as some paths to do not consume
 // a more major number.
 // It should increment by one when new functionality is added.
-#define GLSLANG_MINOR_VERSION 13
+#define GLSLANG_MINOR_VERSION 14
 
 //
 // Call before doing any other compiler/linker operations.
@@ -109,7 +109,7 @@ typedef enum {
     LAST_ELEMENT_MARKER(EShLangCount),
 } EShLanguage;         // would be better as stage, but this is ancient now
 
-typedef enum {
+typedef enum : unsigned {
     EShLangVertexMask         = (1 << EShLangVertex),
     EShLangTessControlMask    = (1 << EShLangTessControl),
     EShLangTessEvaluationMask = (1 << EShLangTessEvaluation),
@@ -240,7 +240,7 @@ typedef enum {
 //
 // Message choices for what errors and warnings are given.
 //
-enum EShMessages {
+enum EShMessages : unsigned {
     EShMsgDefault          = 0,         // default is to give all required errors and extra warnings
     EShMsgRelaxedErrors    = (1 << 0),  // be liberal in accepting input
     EShMsgSuppressWarnings = (1 << 1),  // suppress all warnings, except those required by the specification
@@ -255,7 +255,7 @@ enum EShMessages {
     EShMsgDebugInfo        = (1 << 10), // save debug information
     EShMsgHlslEnable16BitTypes  = (1 << 11), // enable use of 16-bit types in SPIR-V for HLSL
     EShMsgHlslLegalization  = (1 << 12), // enable HLSL Legalization messages
-    EShMsgHlslDX9Compatible = (1 << 13), // enable HLSL DX9 compatible mode (right now only for samplers)
+    EShMsgHlslDX9Compatible = (1 << 13), // enable HLSL DX9 compatible mode (for samplers and semantics)
     EShMsgBuiltinSymbolTable = (1 << 14), // print the builtin symbol table
     LAST_ELEMENT_MARKER(EShMsgCount),
 };
@@ -264,13 +264,16 @@ enum EShMessages {
 // Options for building reflection
 //
 typedef enum {
-    EShReflectionDefault           = 0,        // default is original behaviour before options were added
-    EShReflectionStrictArraySuffix = (1 << 0), // reflection will follow stricter rules for array-of-structs suffixes
-    EShReflectionBasicArraySuffix  = (1 << 1), // arrays of basic types will be appended with [0] as in GL reflection
-    EShReflectionIntermediateIO    = (1 << 2), // reflect inputs and outputs to program, even with no vertex shader
-    EShReflectionSeparateBuffers   = (1 << 3), // buffer variables and buffer blocks are reflected separately
-    EShReflectionAllBlockVariables = (1 << 4), // reflect all variables in blocks, even if they are inactive
-    EShReflectionUnwrapIOBlocks    = (1 << 5), // unwrap input/output blocks the same as with uniform blocks
+    EShReflectionDefault            = 0,        // default is original behaviour before options were added
+    EShReflectionStrictArraySuffix  = (1 << 0), // reflection will follow stricter rules for array-of-structs suffixes
+    EShReflectionBasicArraySuffix   = (1 << 1), // arrays of basic types will be appended with [0] as in GL reflection
+    EShReflectionIntermediateIO     = (1 << 2), // reflect inputs and outputs to program, even with no vertex shader
+    EShReflectionSeparateBuffers    = (1 << 3), // buffer variables and buffer blocks are reflected separately
+    EShReflectionAllBlockVariables  = (1 << 4), // reflect all variables in blocks, even if they are inactive
+    EShReflectionUnwrapIOBlocks     = (1 << 5), // unwrap input/output blocks the same as with uniform blocks
+    EShReflectionAllIOVariables     = (1 << 6), // reflect all input/output variables, even if they are inactive
+    EShReflectionSharedStd140SSBO   = (1 << 7), // Apply std140/shared rules for ubo to ssbo
+    EShReflectionSharedStd140UBO    = (1 << 8), // Apply std140/shared rules for ubo to ssbo
     LAST_ELEMENT_MARKER(EShReflectionCount),
 } EShReflectionOptions;
 
@@ -412,6 +415,7 @@ enum TResourceType {
     EResCount
 };
 
+
 // Make one TShader per shader that you will link into a program. Then
 //  - provide the shader through setStrings() or setStringsWithLengths()
 //  - optionally call setEnv*(), see below for more detail
@@ -694,6 +698,7 @@ public:
     int counterIndex;
     int numMembers;
     int arrayStride;            // stride of an array variable
+    int topLevelArraySize;      // size of the top-level variable in a storage buffer member
     int topLevelArrayStride;    // stride of the top-level variable in a storage buffer member
     EShLanguageMask stages;
 
diff --git a/src/modules/graphics/ShaderStage.cpp b/src/modules/graphics/ShaderStage.cpp
index 5f280e63f..92ecb14a9 100644
--- a/src/modules/graphics/ShaderStage.cpp
+++ b/src/modules/graphics/ShaderStage.cpp
@@ -118,6 +118,7 @@ static const TBuiltInResource defaultTBuiltInResource = {
 	/* .maxTaskWorkGroupSizeY_NV = */ 1,
 	/* .maxTaskWorkGroupSizeZ_NV = */ 1,
 	/* .maxMeshViewCountNV = */ 4,
+	/* .maxDualSourceDrawBuffersEXT = */ 1,
 	/* .limits = */ {
 		/* .nonInductiveForLoops = */ 1,
 		/* .whileLoops = */ 1,
diff --git a/src/modules/graphics/metal/ShaderStage.mm b/src/modules/graphics/metal/ShaderStage.mm
index 9dcbbe7f7..3f7a7ea5c 100644
--- a/src/modules/graphics/metal/ShaderStage.mm
+++ b/src/modules/graphics/metal/ShaderStage.mm
@@ -116,6 +116,7 @@ static const TBuiltInResource defaultTBuiltInResource = {
 	/* .maxTaskWorkGroupSizeY_NV = */ 1,
 	/* .maxTaskWorkGroupSizeZ_NV = */ 1,
 	/* .maxMeshViewCountNV = */ 4,
+	/* .maxDualSourceDrawBuffersEXT = */ 1,
 	/* .limits = */ {
 		/* .nonInductiveForLoops = */ 1,
 		/* .whileLoops = */ 1,