Intrinsics: tests for TMC+Control Divergence

runtime/intrinsics/vx_intrinsics.h

@@ -22,3 +22,13 @@ unsigned vx_threadID(void);
 
 // Get hardware warp ID
 unsigned vx_warpID(void);
+
+
+
+#define __if(b) vx_split(b); \
+                if (b) \
+
+#define __else else
+
+
+#define __endif vx_join();

runtime/intrinsics/vx_intrinsics.s

@@ -27,6 +27,7 @@ vx_barrier:
 .global vx_split
 vx_split:
 	.word 0x0005206b    # split a0
+	ret
 
 .type vx_join, @function
 .global vx_join