[PATCH] D32324: CodeGen: BlockPlacement: Increase tail duplication size for O3.

[Kyle Butt via Phabricator via llvm-commits]

iteratee updated this revision to Diff 97534.
iteratee added a comment.

Made the aggressive threshold an option.


https://reviews.llvm.org/D32324

Files:
  lib/CodeGen/MachineBlockPlacement.cpp
  test/CodeGen/PowerPC/tail-dup-layout.ll
  test/CodeGen/X86/sse1.ll

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