added visc.h

llvm/test/VISC/parboil/common/include/visc.h

@@ -32,6 +32,7 @@ void __visc__return(...);
 void* __visc__getNode();
 void* __visc__getParentNode(void*);
 void __visc__barrier();
+void* __visc__malloc(long);
 unsigned __visc__getNodeInstanceID_x(void*);
 unsigned __visc__getNodeInstanceID_y(void*);
 unsigned __visc__getNodeInstanceID_z(void*);