Support entrypoints defined in a namespace. (#5011)

* Support entrypoints defined in a namespace.

* Fix test.

2 files changed, 24 insertions, 2 deletions

diff --git a/tests/diagnostics/command-line/entry-point-redundant-stage.slang b/tests/diagnostics/command-line/entry-point-redundant-stage.slang
index 9507b1ea0..788d7e290 100644
--- a/tests/diagnostics/command-line/entry-point-redundant-stage.slang
+++ b/tests/diagnostics/command-line/entry-point-redundant-stage.slang
@@ -1,5 +1,7 @@
 // entry-point-redundant-stage.slang
 
-//DIAGNOSTIC_TEST:SIMPLE:-stage vertex -stage vertex
+//DIAGNOSTIC_TEST:SIMPLE(filecheck=CHECK):-stage vertex -stage vertex
 
-//DIAGNOSTIC_TEST:SIMPLE:-entry vsMain -stage vertex -stage vertex
+//DIAGNOSTIC_TEST:SIMPLE(filecheck=CHECK):-entry vsMain -stage vertex -stage vertex
+
+// CHECK: was specified more than once
diff --git a/tests/language-feature/namespaces/entrypoint-in-namespace.slang b/tests/language-feature/namespaces/entrypoint-in-namespace.slang
new file mode 100644
index 000000000..e91aa5ee3
--- /dev/null
+++ b/tests/language-feature/namespaces/entrypoint-in-namespace.slang
@@ -0,0 +1,20 @@
+//TEST:SIMPLE(filecheck=CHECK): -target spirv -entry Pixel.MyType.Main -stage fragment
+
+// Test that we can compile an entrypoint defined in a namespace.
+
+// CHECK: OpEntryPoint
+struct PSInput
+{
+	float4 color : COLOR;
+};
+
+namespace Pixel
+{
+    struct MyType
+    {
+        static float4 Main(PSInput input) : SV_TARGET
+        {
+            return input.color;
+        }
+    }    
+}
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