llvm-project

c4caf949 - [AArch64][MachineCombiner] Recombine long chains of accumulation instructions into a tree to increase ILP (#126060)

[AArch64][MachineCombiner] Recombine long chains of accumulation instructions into a tree to increase ILP (#126060) This pattern shows up often in media libraries. The optimization should only kick in for O3. Currently only supports a single family of accumulation instructions, but can easily be expanded to support additional instructions in the future.