Add datalayout for constant buffers. (#5608)

* Add datalayout for constant buffers.

* Fixes.

* Fix test.

* Fix glsl codegen.

* Update spirv-specific doc.

* Fix test.

* Fix binding in the presense of specialization constants.

* address comments.

* Add a test for constant buffer layout.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/slang/slang-emit-hlsl.cpp b/source/slang/slang-emit-hlsl.cpp
index 26d37d1f5..824680b72 100644
--- a/source/slang/slang-emit-hlsl.cpp
+++ b/source/slang/slang-emit-hlsl.cpp
@@ -1310,6 +1310,13 @@ void HLSLSourceEmitter::emitSimpleTypeImpl(IRType* type)
         _emitHLSLSubpassInputType(subpassType);
         return;
     }
+    else if (auto cbufferType = as<IRConstantBufferType>(type))
+    {
+        m_writer->emit("ConstantBuffer<");
+        emitType(cbufferType->getElementType());
+        m_writer->emit(" >");
+        return;
+    }
     else if (auto structuredBufferType = as<IRHLSLStructuredBufferTypeBase>(type))
     {
         switch (structuredBufferType->getOp())