Omit frame pointers in SkOpts code.

This has a huge impact the generated code for each SkRasterPipeline
op (all tail-call based).

Change-Id: I3d77ef342a42292bb6bfa7a68e157c85d1e2a1a9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/606576
Commit-Queue: Herb Derby <herb@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
1 file changed