Initial commit.

tests/store-int16.ispc

@@ -0,0 +1,14 @@
+export uniform int width() { return programCount; }
+
+export void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
+    uniform int x[16] = 0xffffffff;
+    unsigned int val = aFOO[programIndex];
+    store_to_int16(x, 5, val);
+    unsigned int v = load_from_int16(x, 6);
+    RET[programIndex] = v;
+}
+
+export void result(uniform float RET[]) {
+    RET[programIndex] = 2+programIndex;
+    RET[programCount-1] = 0xffff;
+}