llvm-project

d0caa41c - [GISel] import pattern `(A-(B-C)) to A+(C-B)` (#181676)

[GISel] import pattern `(A-(B-C)) to A+(C-B)` (#181676) This PR imports the rewrite pattern `(A-(B-C)) to A+(C-B)` from selectionDAG to GlobalISel. The rewrite should only trigger when `B-C` is used once.