From 7893b4534a1034a001fd7670f3a2ad6d1db66bad Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Wed, 28 Aug 2024 22:27:23 -0700
Subject: Add `ReportIntersectionOptix` for optix. (#4949)

---
 source/slang/hlsl.meta.slang | 14 ++++++++++++++
 tests/cuda/report-hit.slang  |  9 +++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 tests/cuda/report-hit.slang

diff --git a/source/slang/hlsl.meta.slang b/source/slang/hlsl.meta.slang
index 21cb9ef18..10a6254c1 100644
--- a/source/slang/hlsl.meta.slang
+++ b/source/slang/hlsl.meta.slang
@@ -15881,6 +15881,20 @@ bool ReportHit(float tHit, uint hitKind, A attributes)
     }
 }
 
+__generic<each T : __BuiltinIntegerType>
+[ForceInline]
+[require(cuda_glsl_hlsl_spirv, raytracing_intersection)]
+bool ReportHitOptix(float tHit, uint hitKind, expand each T attribs)
+{
+    __target_switch
+    {
+    case cuda:
+        __intrinsic_asm "optixReportIntersection";
+    default:
+        return ReportHit(tHit, hitKind, makeTuple(expand each attribs));
+    }
+}
+
 // 10.3.4
 [require(cuda_glsl_hlsl_spirv, raytracing_anyhit)]
 void IgnoreHit()
diff --git a/tests/cuda/report-hit.slang b/tests/cuda/report-hit.slang
new file mode 100644
index 000000000..12b6d8c4b
--- /dev/null
+++ b/tests/cuda/report-hit.slang
@@ -0,0 +1,9 @@
+//TEST:SIMPLE(filecheck=CHECK): -target cuda
+
+// CHECK: optixReportIntersection(3.0f, 2U, int(1), int(2), int(3))
+
+[shader("intersection")]
+void test()
+{
+    ReportHitOptix(3.0f, 2, 1, 2, 3);
+}
\ No newline at end of file
-- 
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