[PATCH] D14730: [Aarch64] Add cost for missing extensions.

[Matthew Simpson via llvm-commits]

mssimpso added a comment.

Performance data for the updated revision on spec2000 and spec2006 is below. A
binary diff of the programs before and after the change shows that only three
programs are modified. All the other programs in spec are unaffected. A
positive difference indicates improvement. The programs were tested on a
Cortex-A57-like chip.

  Benchmark           Diff (%)
  ----------------   ---------
  spec2006/gcc       +0.413233
  spec2006/h264ref   +0.183790
  spec2006/sphinx3   +0.129399

For the LLVM test-suite, a binary diff of the programs before and after the
change shows that only the three programs shown below are modified. All other
programs are unaffected. Unfortunately, our testing infrastructure is not yet
capable of providing performance data for the test-suite programs. If the
programs below are of concern to you, I would have to ask for assistance from
the community for gathering the data. Otherwise, given the small number of
affected programs, a post-commit performance review may be sufficient here.

  MultiSource/Applications/JM/lencod/lencod
  MultiSource/Applications/sgefa/sgefa
  MultiSource/Benchmarks/PAQ8p/paq8p


http://reviews.llvm.org/D14730