[PATCH] D33577: CodeGen: BlockPlacement: Use Branching factor to choose between near equals.

[Kyle Butt via Phabricator via llvm-commits]

iteratee updated this revision to Diff 100472.
iteratee edited the summary of this revision.
iteratee added a comment.

Add comments to the change summary about the global heuristic that we're approximating (maybe badly) by calculating the branch factor.


Repository:
  rL LLVM

https://reviews.llvm.org/D33577

Files:
  lib/CodeGen/MachineBlockPlacement.cpp
  test/CodeGen/AArch64/combine-comparisons-by-cse.ll
  test/CodeGen/AArch64/machine_cse.ll
  test/CodeGen/ARM/2013-05-05-IfConvertBug.ll
  test/CodeGen/ARM/tail-opts.ll
  test/CodeGen/PowerPC/tail-dup-branch-to-fallthrough.ll
  test/CodeGen/WebAssembly/cfg-stackify.ll
  test/CodeGen/X86/block-placement-branch-factor.mir
  test/CodeGen/X86/block-placement.ll
  test/CodeGen/X86/loop-blocks.ll
  test/CodeGen/X86/tail-merge-after-mbp.mir

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