glsl-1.10: add tests for an array index on a swizzled vec lvalue

Current mesa fails both of these (in different ways!).

Inspired by WebGL conformance test
conformance2/glsl3/vector-dynamic-indexing-swizzled-lvalue.html

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

2 files changed, 32 insertions, 0 deletions

diff --git a/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test
new file mode 100644
index 000000000..fa1f7df58
--- /dev/null
+++ b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing-nonconst.shader_test
@@ -0,0 +1,17 @@
+[require]
+GLSL >= 1.10
+
+[vertex shader passthrough]
+
+[fragment shader]
+uniform int zero;
+void main() {
+    gl_FragColor = vec4(1, 0, 0, 1);
+    gl_FragColor.wzyx[zero + 2] = 1.0;
+    gl_FragColor.wzyx[zero + 3] = 0.0;
+}
+
+[test]
+uniform int zero 0
+draw rect -1 -1 2 2
+probe all rgba 0 1 0 1
diff --git a/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test
new file mode 100644
index 000000000..f61ebabb8
--- /dev/null
+++ b/tests/spec/glsl-1.10/execution/swizzled-writemask-indexing.shader_test
@@ -0,0 +1,15 @@
+[require]
+GLSL >= 1.10
+
+[vertex shader passthrough]
+
+[fragment shader]
+void main() {
+    gl_FragColor = vec4(1, 0, 0, 1);
+    gl_FragColor.wzyx[2] = 1.0;
+    gl_FragColor.wzyx[3] = 0.0;
+}
+
+[test]
+draw rect -1 -1 2 2
+probe all rgba 0 1 0 1