From e2b56d015e9cd6c9401e38aff9a303121d50c1e1 Mon Sep 17 00:00:00 2001
From: venkataram-nv <vedavamadath@nvidia.com>
Date: Tue, 25 Jun 2024 15:26:51 -0700
Subject: Add intrinsic for `IsHelperLane()` in HLSL (#4471)

Add InHelperLane() intrinsic for HLSL, GLSL, Metal and Spirv.
---
 tests/hlsl-intrinsic/helper-lane.slang | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 tests/hlsl-intrinsic/helper-lane.slang

(limited to 'tests')

diff --git a/tests/hlsl-intrinsic/helper-lane.slang b/tests/hlsl-intrinsic/helper-lane.slang
new file mode 100644
index 000000000..316bda5f9
--- /dev/null
+++ b/tests/hlsl-intrinsic/helper-lane.slang
@@ -0,0 +1,20 @@
+//TEST:SIMPLE(filecheck=HLSL): -entry main -target hlsl -stage fragment
+//TEST:SIMPLE(filecheck=GLSL): -entry main -target glsl -stage fragment
+//TEST:SIMPLE(filecheck=METAL): -entry main -target metal -stage fragment
+//TEST:SIMPLE(filecheck=SPIRV): -entry main -target spirv -stage fragment
+//TEST:SIMPLE(filecheck=SPIRV): -entry main -target spirv-asm -stage fragment
+
+float4 main() : SV_Target
+{
+    //HLSL: IsHelperLane()
+
+    //GLSL: GL_EXT_demote_to_helper_invocation
+    //GLSL: gl_HelperInvocation()
+
+    //METAL: simd_is_helper_thread()
+
+    //SPIRV: DemoteToHelperInvocation
+    //SPIRV: SPV_EXT_demote_to_helper_invocation
+    //SPIRV: OpIsHelperInvocationEXT
+    return float4(IsHelperLane());
+}
-- 
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