Initial commit.

tests/load-int8.ispc

@@ -0,0 +1,11 @@
+export uniform int width() { return programCount; }
+
+export void f_fu(uniform float RET[], uniform float aFOO[], uniform float b) {
+    uniform int x[4] = { 0x04030201, 0x08070605, 0x0c0b0a09, 0x100f0e0d };
+    unsigned int v = load_from_int8(x, 0);
+    RET[programIndex] = v;
+}
+
+export void result(uniform float RET[]) {
+    RET[programIndex] = 1+programIndex;
+}