From 85b996a75683b5364456d731a9cb4aee5c3fada2 Mon Sep 17 00:00:00 2001
From: Anders Leino <aleino@nvidia.com>
Date: Wed, 18 Sep 2024 18:36:33 +0300
Subject: Add WGSL pack/unpack, constructor, derivatives & misc intrinsics
 (#5102)

* Add WGSL pack/unpack intrinsics

This addresses issue #5080.

* Add WGSL constructor intrinsics

This addresses issue #5081.

* Add WGSL derivative and miscellaneous intrinsics

This addresses issue #5083.

* Add some missing WGSL intrinsics

- degrees
- faceforward
---
 source/slang/slang-emit-wgsl.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

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

diff --git a/source/slang/slang-emit-wgsl.cpp b/source/slang/slang-emit-wgsl.cpp
index 0a4cca407..40d8ace91 100644
--- a/source/slang/slang-emit-wgsl.cpp
+++ b/source/slang/slang-emit-wgsl.cpp
@@ -1002,4 +1002,22 @@ void WGSLSourceEmitter::emitFrontMatterImpl(TargetRequest* /* targetReq */)
     }
 }
 
+void WGSLSourceEmitter::emitIntrinsicCallExprImpl(
+    IRCall* inst,
+    UnownedStringSlice intrinsicDefinition,
+    IRInst* intrinsicInst,
+    EmitOpInfo const& inOuterPrec
+    )
+{
+    // The f16 constructor is generated for f32tof16
+    if (intrinsicDefinition.startsWith("f16"))
+    {
+        m_f16ExtensionEnabled = true;
+    }
+
+    CLikeSourceEmitter::emitIntrinsicCallExprImpl(
+        inst, intrinsicDefinition, intrinsicInst, inOuterPrec
+    );
+}
+
 } // namespace Slang
-- 
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