Updated spirv-tools.

3rdparty/spirv-tools/source/fuzz/fuzzer_util.cpp

@@ -550,6 +550,39 @@ bool IsNullConstantSupported(const opt::analysis::Type& type) {
          type.AsDeviceEvent() || type.AsReserveId() || type.AsQueue();
 }
 
+bool GlobalVariablesMustBeDeclaredInEntryPointInterfaces(
+    const opt::IRContext* ir_context) {
+  // TODO(afd): We capture the universal environments for which this requirement
+  //  holds.  The check should be refined on demand for other target
+  //  environments.
+  switch (ir_context->grammar().target_env()) {
+    case SPV_ENV_UNIVERSAL_1_0:
+    case SPV_ENV_UNIVERSAL_1_1:
+    case SPV_ENV_UNIVERSAL_1_2:
+    case SPV_ENV_UNIVERSAL_1_3:
+      return false;
+    default:
+      return true;
+  }
+}
+
+void AddVariableIdToEntryPointInterfaces(opt::IRContext* context, uint32_t id) {
+  if (GlobalVariablesMustBeDeclaredInEntryPointInterfaces(context)) {
+    // Conservatively add this global to the interface of every entry point in
+    // the module.  This means that the global is available for other
+    // transformations to use.
+    //
+    // A downside of this is that the global will be in the interface even if it
+    // ends up never being used.
+    //
+    // TODO(https://github.com/KhronosGroup/SPIRV-Tools/issues/3111) revisit
+    //  this if a more thorough approach to entry point interfaces is taken.
+    for (auto& entry_point : context->module()->entry_points()) {
+      entry_point.AddOperand({SPV_OPERAND_TYPE_ID, {id}});
+    }
+  }
+}
+
 }  // namespace fuzzerutil
 
 }  // namespace fuzz