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c65abd7156
Summary: This patch introduces a new heuristic for guiding operand reordering. The new "look-ahead" heuristic can look beyond the immediate predecessors. This helps break ties when the immediate predecessors have identical opcodes (see lit test for examples). Reviewers: RKSimon, ABataev, dtemirbulatov, Ayal, hfinkel, rnk Reviewed By: RKSimon, dtemirbulatov Subscribers: xbolva00, Carrot, hiraditya, phosek, rnk, rcorcs, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60897