Avoid make copies of __ref parameters when doing autodiff. (#3242)

Co-authored-by: Yong He <yhe@nvidia.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/source/slang/slang-emit-cpp.cpp b/source/slang/slang-emit-cpp.cpp
index ec797bcf4..81bc2203a 100644
--- a/source/slang/slang-emit-cpp.cpp
+++ b/source/slang/slang-emit-cpp.cpp
@@ -1041,7 +1041,7 @@ void CPPSourceEmitter::_emitType(IRType* type, DeclaratorInfo* declarator)
     case kIROp_RefType:
         {
             auto ptrType = cast<IRPtrTypeBase>(type);
-            RefDeclaratorInfo refDeclarator(declarator);
+            PtrDeclaratorInfo refDeclarator(declarator);
             _emitType(ptrType->getValueType(), &refDeclarator);
         }
         break;
diff --git a/source/slang/slang-ir-autodiff-fwd.cpp b/source/slang/slang-ir-autodiff-fwd.cpp
index 560f3f64e..2465c1b74 100644
--- a/source/slang/slang-ir-autodiff-fwd.cpp
+++ b/source/slang/slang-ir-autodiff-fwd.cpp
@@ -1605,7 +1605,7 @@ void insertTempVarForMutableParams(IRModule* module, IRFunc* func)
     List<IRParam*> params;
     for (auto param : firstBlock->getParams())
     {
-        if (const auto ptrType = as<IRPtrTypeBase>(param->getDataType()))
+        if (const auto ptrType = as<IROutTypeBase>(param->getDataType()))
         {
             params.add(param);
         }