Add OpMemoryBarrier

include/sirit/sirit.h

@@ -364,6 +364,11 @@ public:
     /// Finish the current primitive and start a new one. No vertex is emitted.
     Id OpEndPrimitive();
 
+    // Barrier
+
+    /// Control the order that memory accesses are observed.
+    Id OpMemoryBarrier(Id scope, Id semantics);
+
     // Logical
 
     /// Result is true if any component of Vector is true, otherwise result is false.

src/CMakeLists.txt

@@ -27,6 +27,7 @@ add_library(sirit
     instructions/extension.cpp
     instructions/image.cpp
     instructions/group.cpp
+    instructions/barrier.cpp
 )
 
 target_compile_options(sirit PRIVATE ${SIRIT_CXX_FLAGS})

src/instructions/barrier.cpp

@@ -0,0 +1,20 @@
+/* This file is part of the sirit project.
+ * Copyright (c) 2019 sirit
+ * This software may be used and distributed according to the terms of the
+ * 3-Clause BSD License
+ */
+
+#include <memory>
+#include "op.h"
+#include "sirit/sirit.h"
+
+namespace Sirit {
+
+Id Module::OpMemoryBarrier(Id scope, Id semantics) {
+    auto op = std::make_unique<Op>(spv::Op::OpMemoryBarrier);
+    op->Add(scope);
+    op->Add(semantics);
+    return AddCode(std::move(op));
+}
+
+} // namespace Sirit