[PATCH] D29862: LSR: an alternative way to resolve complex solution

Evgeny Stupachenko via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Mar 6 14:57:32 PST 2017


evstupac added a comment.

Regarding other regressions in spec2006.
New method does not guarantee perfect solution. So I think it would be fair to apply it if it generally demonstrate better code.
By generally I mean, that summ of all  LSR solution registers (say in a benchmark) become lower.
I can collect such statistic for you arch (please proved me with exact options).
If new method generally select more registers for LSR solutions I'll need to fix this.


Repository:
  rL LLVM

https://reviews.llvm.org/D29862





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