From fdf061e278720ec066a1fac8f1f35a22e817bf2d Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 21 Nov 2024 14:07:23 -0800
Subject: 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.
---
 source/slang/slang-check-type.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'source/slang/slang-check-type.cpp')

diff --git a/source/slang/slang-check-type.cpp b/source/slang/slang-check-type.cpp
index 34f16751b..d9691a828 100644
--- a/source/slang/slang-check-type.cpp
+++ b/source/slang/slang-check-type.cpp
@@ -101,6 +101,13 @@ Type* SemanticsVisitor::getRemovedModifierType(ModifiedType* modifiedType, Modif
     return m_astBuilder->getModifiedType(modifiedType->getBase(), newModifiers);
 }
 
+Type* SemanticsVisitor::getConstantBufferType(Type* elementType, Type* layoutType)
+{
+    auto iBufferDataLayoutType = m_astBuilder->getSharedASTBuilder()->getIBufferDataLayoutType();
+    auto witness = isSubtype(layoutType, iBufferDataLayoutType, IsSubTypeOptions());
+    return m_astBuilder->getConstantBufferType(elementType, layoutType, witness);
+}
+
 Expr* SemanticsVisitor::ExpectATypeRepr(Expr* expr)
 {
     if (auto overloadedExpr = as<OverloadedExpr>(expr))
-- 
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