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Vasileios Porpodas be0be977ce [SLP] Recommit: Look-ahead operand reordering heuristic.
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 an example).

Reviewers: RKSimon, ABataev, dtemirbulatov, Ayal, hfinkel, rnk

Reviewed By: RKSimon, dtemirbulatov

Subscribers: hiraditya, phosek, rnk, rcorcs, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60897

llvm-svn: 364964
2019-07-02 20:20:28 +00:00
2019-07-02 16:08:10 +00:00
2016-01-26 21:29:08 +00:00
2019-02-19 20:38:51 +00:00

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