Initial commit.

tests/load-int8-1.ispc

@@ -0,0 +1,12 @@
+export uniform int width() { return programCount; }
+
+export void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
+    uniform int x[5] = { 0x04030201, 0x08070605, 0x0c0b0a09, 0x100f0e0d,
+                         0x14131211 };
+    unsigned int v = load_from_int8(x, 2);
+    RET[programIndex] = v;
+}
+
+export void result(uniform float RET[]) {
+    RET[programIndex] = 3+programIndex;
+}