Initial commit.

tests/struct-vary-index-expr.ispc

@@ -0,0 +1,16 @@
+
+export uniform int width() { return programCount; }
+
+
+
+struct Foo { float f; };
+
+export void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
+    float a = aFOO[programIndex];
+    uniform Foo foo[17] = a;
+    ++foo[a].f;
+    uniform int i[16] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 };
+    RET[programIndex] = foo[i[programIndex]].f;
+}
+
+export void result(uniform float RET[]) { RET[programIndex] = 2+programIndex; }