:)

This one identifies allocation node and add s the property to the node. Can be
used by passes later

This field can be used to contain pointer to Node specific properties.
Currently used for Allocation Node property which is a list of Edge, Value pairs

__visc__barrier, __visc__getParentNode, __visc__getNumNodeInstances ...
(2) Also fixed bugs. bfs passing correctly through GenVISC pass

(2) EdgeDetection pipeline example working

Added singleNodeStream.ll and twoNodeStream.ll test cases

(1) Changes to DFGraph.h for identifying streaming graphs and edges
(2) Added/modified launch, wait, push, pop intrinsics for streaming graphs
(3) Changes to DFG2LLVM_X86.cpp and DFG2LLVM.h pass to support code gen for streaming
(4) BuildDFG.cpp modified to create streaming edges
(5) Modified visc-rt.cpp and visc-rt.h to add runtime support for streaming

Choose device in init context than in execute node
(Might want to expand to multiple devices in future)
Modifications also include code for choosing sub devices for x86 target,
although that code is inside an always false if condition

(1) Added opencl_cpu_baseline version
(2) Modified opencl_nvidia Makefile to remove -g3 flag

(1) Added opencl_cpu_baseline version
(2) Modified Makefile of opencl_base version to remove -g3

(1) Added opencl_cpu_baseline version
(2) Modified opencl_nvidia Makefile to remove -g3

(1) Added opencl_cpu_baseline version
(2) Modified opencl_opt_8 Makefile to use -O3