Support for cache 2/3 and all targets

tests/prefetch-varying.ispc

@@ -0,0 +1,22 @@
+
+export uniform int width() { return programCount; }
+
+int64 zero = 0;
+
+export void f_f(uniform float RET[], uniform float aFOO[]) {
+ uniform int64 a[programCount];
+ for (uniform int i = 0; i < programCount; ++i)
+ a[i] = aFOO[i];
+
+ int64 *ptr = &(a[programIndex+zero]);
+ prefetch_l1(ptr);
+ prefetch_l2(ptr);
+ prefetch_l3(ptr);
+ prefetch_nt(ptr);
+ int g = *ptr;
+ RET[programIndex] = g;
+}
+
+export void result(uniform float RET[]) {
+ RET[programIndex] = 1 + programIndex;
+}