Initial commit.

tests/cfor-const-fold-4.ispc

@@ -0,0 +1,19 @@
+
+export uniform int width() { return programCount; }
+
+
+
+#define N(x)  (3*x+1)
+// p a power of 2
+#define ROUND_UP(x, p) ((x + (p-1)) & ~(p-1))
+
+export void f_f(uniform float RET[], uniform float aFOO[]) {
+    float a = aFOO[programIndex&0x3];
+    uniform float x[ROUND_UP(N(3), 16)];
+    uniform int i;
+    cfor (i = 0; i < ROUND_UP(N(3), 16); ++i)
+        x[i] = i * i;
+    RET[programIndex] = x[4];
+}
+
+export void result(uniform float RET[]) { RET[programIndex] = 16.; }