This patch also takes the first step to remove backward compatibility code from the passes. We only support the in-tree LLVM version. Change-Id: I7836e524404afba151d1a8bfa539b505e1dbdb8e
The feature is fundamentally broken. See the comment in the code. Change-Id: If36b06b0732cc4d18f20240ed96d30a7959b0d21
Change-Id: I106c5faf8d8f1af5d3f5542fe666532895413909