1 files changed, 23 insertions, 0 deletions
diff --git a/tests/bugs/gh-3997.slang b/tests/bugs/gh-3997.slang
new file mode 100644
index 000000000..8c75da426
--- /dev/null
+++ b/tests/bugs/gh-3997.slang
@@ -0,0 +1,23 @@
+//TEST:SIMPLE(filecheck=CHECK): -target spirv -emit-spirv-directly -O0 -g
+
+//CHECK: OpEntryPoint
+
+float atomicAdd(__ref float value, float amount)
+{
+    __target_switch
+    {
+    case cpp:
+        __requirePrelude("#include <atomic>");
+        __intrinsic_asm "std::atomic_ref(*$0).fetch_add($1)";
+    case spirv:
+        return __atomicAdd(value, amount);
+    }
+}
+
+RWStructuredBuffer<float> outputBuffer;
+
+[numthreads(4, 1, 1)]
+[shader("compute")]
+void computeMain(int3 dispatchThreadID : SV_DispatchThreadID) {
+    atomicAdd(outputBuffer[0], 1);
+}
+\ No newline at end of file