From 08e36dd6c3c03eb0af7b090d30afee864e309de9 Mon Sep 17 00:00:00 2001
From: "Nathan V. Morrical" <natemorrical@gmail.com>
Date: Tue, 10 Aug 2021 13:25:25 -0600
Subject: Enable reading OptiX SBT records via uniform parameters on ray
 tracing entry points (#1917)

* optix SBT record data can now be accessed using uniform parameters on ray tracing entry points

* Update slang-emit.cpp
---
 source/slang/slang-emit.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'source/slang/slang-emit.cpp')

diff --git a/source/slang/slang-emit.cpp b/source/slang/slang-emit.cpp
index 4a0018770..5ecebddad 100644
--- a/source/slang/slang-emit.cpp
+++ b/source/slang/slang-emit.cpp
@@ -21,6 +21,7 @@
 #include "slang-ir-lower-generics.h"
 #include "slang-ir-lower-tuple-types.h"
 #include "slang-ir-lower-bit-cast.h"
+#include "slang-ir-optix-entry-point-uniforms.h"
 #include "slang-ir-restructure.h"
 #include "slang-ir-restructure-scoping.h"
 #include "slang-ir-specialize.h"
@@ -249,12 +250,18 @@ Result linkAndOptimizeIR(
     // the global scope instead.
     //
     // TODO: We should skip this step for CUDA targets.
+    // (NM): we actually do need to do this step for OptiX based CUDA targets
     //
     {
         CollectEntryPointUniformParamsOptions passOptions;
         switch( target )
         {
         case CodeGenTarget::CUDASource:
+            collectOptiXEntryPointUniformParams(irModule);
+            #if 0
+            dumpIRIfEnabled(compileRequest, irModule, "OPTIX ENTRY POINT UNIFORMS COLLECTED");
+            #endif
+            validateIRModuleIfEnabled(compileRequest, irModule);
             break;
 
         case CodeGenTarget::CPPSource:
-- 
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