port from perforce

hgplus/ShaderMinifier/tests/unit/blocks.frag

@@ -0,0 +1,36 @@
+float test_if()
+{
+  int foo = 2;
+  float bar;
+  if (foo == 2)
+    foo++;
+  if (foo < 5)
+    if (foo == 3)
+      bar = 0.2;
+    else
+      bar = 0.3;
+  else
+    bar = 0.4;
+}
+
+float test_for()
+{
+  int foo = 2;
+  int n = 0;
+  for (int i = 0; i < 4; i++)
+    foo += i;
+  for (foo++; n < 4 ; n++)
+    {
+      int k = n - 1;
+      foo += k;
+    }
+  return 1. / float(k);
+}
+
+
+void main()
+{
+  float a = test_if();
+  float b = test_for();
+  gl_FragColor=vec4(.2,a,b,0.);
+}