Properly plumbing layout for global varyings. (#6198)

* Properly plumbing layout for global varyings.

* Fix test.

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/glsl/in-layout.slang b/tests/glsl/in-layout.slang
new file mode 100644
index 000000000..651948c69
--- /dev/null
+++ b/tests/glsl/in-layout.slang
@@ -0,0 +1,23 @@
+//TEST:SIMPLE(filecheck=CHECK): -target spirv -entry main -stage fragment
+
+// Test that we can mix explicit and implicit locations for global varyings.
+
+#version 450
+layout(location=1) in vec4 color_0;
+in vec2 texcoord_0;
+in vec2 texCoord_1;
+
+out vec4 out1;
+
+// CHECK-DAG: OpDecorate %color_0 Location 1
+
+// CHECK-DAG: OpDecorate %texcoord_0 Location 0
+
+// CHECK-DAG: OpDecorate %texCoord_1 Location 2
+
+// CHECK-DAG: OpDecorate %entryPointParam_main_out1 Location 0
+
+void main()
+{
+    out1 = vec4(color_0.rg, texcoord_0 + texCoord_1);
+}
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