merging changes from OPAE branch making this branch

runtime/qemu/vx_api.c

@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "../vx_api/vx_api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (*pocl_workgroup_func) (
+  void * /* args */,
+  void * /* pocl_context */,
+  uint32_t /* group_x */,
+  uint32_t /* group_y */,
+  uint32_t /* group_z */
+);
+
+void pocl_spawn(struct pocl_context_t * ctx, pocl_workgroup_func pfn, const void * args) {
+  uint32_t x, y, z;
+  for (z = 0; z < ctx->num_groups[2]; ++z)
+    for (y = 0; y < ctx->num_groups[1]; ++y)
+      for (x = 0; x < ctx->num_groups[0]; ++x)
+        (pfn)(arguments, ctx, x, y, z);
+}
+
+#ifdef __cplusplus
+}
+#endif