[PATCH] D51467: Output per-function size-info remarks

[Jessica Paquette via Phabricator via llvm-commits]

paquette added a comment.

I ran this with a debug build, and I noticed it's pretty heavy wrt compile time. I'm working on fixing that before committing.

Also, @anemet asked me offline to provide some opt-stats output. Here's that for sqlite3 at -O2 + size remarks:

Total number of remarks       56884

Top 10 remarks by pass:

  gvn                            56%
  licm                           21%
  inline                         15%
  loop-vectorize                  4%
  slp-vectorizer                  2%
  prologepilog                    1%
  asm-printer                     1%
  regalloc                        0%
  loop-unroll                     0%
  tailcallelim                    0%

Top 10 remarks:

  gvn/LoadClobbered              54%
  licm/InstSunk                  14%
  inline/Inlined                  7%
  inline/TooCostly                5%
  licm/LoadWithLoopInvariantAddressInvalidated  4%
  licm/Hoisted                    3%
  inline/NeverInline              2%
  loop-vectorize/MissedDetails    1%
  loop-vectorize/CFGNotUnderstood  1%
  slp-vectorizer/NotPossible      1%


https://reviews.llvm.org/D51467