From 64b321995acbc4dee1f1be9e17ea161efa0b6bc9 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 6 Mar 2021 02:51:04 +0200
Subject: [PATCH] Add some test cases for unused interface blocks

---
 .../partially_unused_interface_block.glsl     | 50 +++++++++++++++++++
 .../glsl/unused_interface_block_removal.glsl  | 30 +++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 tests/glsl/partially_unused_interface_block.glsl
 create mode 100644 tests/glsl/unused_interface_block_removal.glsl

diff --git a/tests/glsl/partially_unused_interface_block.glsl b/tests/glsl/partially_unused_interface_block.glsl
new file mode 100644
index 00000000..82b8b1da
--- /dev/null
+++ b/tests/glsl/partially_unused_interface_block.glsl
@@ -0,0 +1,50 @@
+#pragma MSP stage(vertex)
+layout(location=0) in vec4 position;
+layout(location=1) in vec4 color;
+out VertexOut
+{
+	vec2 texcoord;
+	vec4 color;
+} vs_out;
+void main()
+{
+	vs_out.texcoord = position.xy*0.5+0.5;
+	vs_out.color = color;
+	gl_Position = position;
+}
+
+#pragma MSP stage(fragment)
+layout(location=0) out vec4 frag_color;
+void main()
+{
+	frag_color = vs_out.color;
+}
+
+/* Expected output: vertex
+layout(location=0) in vec4 position;
+layout(location=1) in vec4 color;
+out VertexOut
+{
+	vec2 texcoord;
+	vec4 color;
+} vs_out;
+void main()
+{
+	vs_out.texcoord = position.xy*0.5+0.5;
+	vs_out.color = color;
+	gl_Position = position;
+}
+*/
+
+/* Expected output: fragment
+layout(location=0) out vec4 frag_color;
+in VertexOut
+{
+	vec2 texcoord;
+	vec4 color;
+} vs_out;
+void main()
+{
+	frag_color = vs_out.color;
+}
+*/
diff --git a/tests/glsl/unused_interface_block_removal.glsl b/tests/glsl/unused_interface_block_removal.glsl
new file mode 100644
index 00000000..bc3307c3
--- /dev/null
+++ b/tests/glsl/unused_interface_block_removal.glsl
@@ -0,0 +1,30 @@
+uniform Color
+{
+	vec4 tint;
+} global_color;
+
+#pragma MSP stage(vertex)
+layout(location=0) in vec4 position;
+layout(location=1) in vec4 color;
+out VertexOut
+{
+	vec2 texcoord;
+};
+out VertexOut2
+{
+	vec4 color;
+} vs_out;
+void main()
+{
+	texcoord = position.xy*0.5+0.5;
+	vs_out.color = color*global_color.tint;
+	gl_Position = position;
+}
+
+/* Expected output: vertex
+layout(location=0) in vec4 position;
+void main()
+{
+	gl_Position = position;
+}
+*/
-- 
2.43.0