[Piglit] [PATCH 1/4] link-struct-usage: New test for a bug in the GLSL compiler.

[Eric Anholt]

We were assertion failing during validation after doing structure
splitting on the unlinked shaders, because the two sides ended up not
talking about the same variable any more.

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
---
 tests/shaders/link-struct-usage.shader_test |   44 +++++++++++++++++++++++++++
 1 files changed, 44 insertions(+), 0 deletions(-)
 create mode 100644 tests/shaders/link-struct-usage.shader_test

diff --git a/tests/shaders/link-struct-usage.shader_test b/tests/shaders/link-struct-usage.shader_test
new file mode 100644
index 0000000..8c9fdf2
--- /dev/null
+++ b/tests/shaders/link-struct-usage.shader_test
@@ -0,0 +1,44 @@
+[require]
+
+[vertex shader]
+varying vec4 color;
+struct S {
+       vec4 v;
+};
+void func();
+
+S a;
+
+void main()
+{
+	gl_Position = gl_Vertex;
+
+	a.v = vec4(0.0);
+
+	func();
+
+	color = a.v;
+}
+
+[vertex shader]
+struct S {
+       vec4 v;
+};
+
+S a;
+
+void func()
+{
+	a.v += vec4(0.0, 1.0, 0.0, 0.0);
+}
+
+[fragment shader]
+varying vec4 color;
+void main()
+{
+	gl_FragColor = color;
+}
+
+[test]
+draw rect -1 -1 2 2
+probe all rgba 0.0 1.0 0.0 0.0
-- 
1.7.5.4