From 5b2eb06816521cc0fcfe03258452560bd200002d Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 21 Sep 2023 14:00:48 -0700
Subject: Various slangpy fixes. (#3227)

* Make dynamic cast transparent through `IRAttributedType`.

* Add [CUDAXxx] variant of attributes.

* Support marshaling of vector types.

* Wrap cuda kernels in `extern "C"` block.

---------

Co-authored-by: Yong He <yhe@nvidia.com>
---
 source/slang/slang-ir-constexpr.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'source/slang/slang-ir-constexpr.cpp')

diff --git a/source/slang/slang-ir-constexpr.cpp b/source/slang/slang-ir-constexpr.cpp
index 6e56ebd96..34b56bfef 100644
--- a/source/slang/slang-ir-constexpr.cpp
+++ b/source/slang/slang-ir-constexpr.cpp
@@ -172,7 +172,7 @@ IRLoop* isLoopPhi(IRParam* param)
 bool opCanBeConstExprByBackwardPass(IRInst* value)
 {
     if (value->getOp() == kIROp_Param)
-        return isLoopPhi(as<IRParam>(value));
+        return isLoopPhi(as<IRParam, IRDynamicCastBehavior::NoUnwrap>(value));
     return opCanBeConstExpr(value->getOp());
 }
 
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