glslang SPV tests: Add a set of SPV tests.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31212 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/spv.swizzle.frag

@@ -0,0 +1,52 @@
+#version 110
+
+uniform float blend;
+uniform vec4 u;
+uniform bool p;
+
+varying vec2 t;
+
+void main()
+{
+    float blendscale = 1.789;
+
+    vec4 w = u;
+    vec4 w_undef;       // test undef
+    vec4 w_dep = u;     // test dependent swizzles
+    vec4 w_reorder = u; // test reordering
+    vec4 w2 = u;
+    vec4 w_flow = u;    // test flowControl
+
+    w_reorder.z = blendscale;
+
+    w.wy = t;
+
+    w_reorder.x = blendscale;
+
+    w2.xyzw = u.zwxy;
+
+    w_reorder.y = blendscale;
+
+    w_dep.xy = w2.xz;
+    w_dep.zw = t;
+
+    w_undef.xy = u.zw;
+
+    if (p)
+        w_flow.x = t.x;
+    else
+        w_flow.x = t.y;
+
+    gl_FragColor = mix(w_reorder, w_undef, w * w2 * w_dep * w_flow);
+
+    vec2 c = t;
+    vec4 rep = vec4(0.0, 0.0, 0.0, 1.0);
+
+    if (c.x < 0.0)
+        c.x *= -1.0;
+
+    if (c.x <= 1.0)
+        rep.x = 3.4;
+
+    gl_FragColor += rep;
+}