Don't treat StrcturedBuffer<IFoo> as a specializable param. (#5645)

* Don't treat StrcturedBuffer<IFoo> as a specializable param.

* Fix RHI.

2 files changed, 1 insertions, 9 deletions

diff --git a/source/slang/slang-check-shader.cpp b/source/slang/slang-check-shader.cpp
index 52a70034a..50382f9c1 100644
--- a/source/slang/slang-check-shader.cpp
+++ b/source/slang/slang-check-shader.cpp
@@ -79,15 +79,6 @@ static void _collectExistentialSpecializationParamsRec(
             loc);
         return;
     }
-    else if (auto structuredBufferType = as<HLSLStructuredBufferTypeBase>(type))
-    {
-        _collectExistentialSpecializationParamsRec(
-            astBuilder,
-            ioSpecializationParams,
-            structuredBufferType->getElementType(),
-            loc);
-        return;
-    }
 
     if (auto declRefType = as<DeclRefType>(type))
     {
diff --git a/source/slang/slang-mangle.cpp b/source/slang/slang-mangle.cpp
index 4257f5dc2..7d4587480 100644
--- a/source/slang/slang-mangle.cpp
+++ b/source/slang/slang-mangle.cpp
@@ -817,6 +817,7 @@ String getMangledTypeName(ASTBuilder* astBuilder, Type* type)
 {
     SLANG_AST_BUILDER_RAII(astBuilder);
     ManglingContext context(astBuilder);
+    emitRaw(&context, "_ST");
     emitType(&context, type);
     return context.sb.produceString();
 }