PLT-1485: Investigate issue #4826

[thealmarty]

For #4826.

Pre-submit checklist:

• Branch
  • Tests are provided (if possible)
  • Commit sequence broadly makes sense
  • Key commits have useful messages
  • Changelog fragments have been written (if appropriate)
  • Relevant tickets are mentioned in commit messages
  • Formatting, PNG optimization, etc. are updated
• PR
  • (For external contributions) Corresponding issue exists and is linked in the description
  • Targeting master unless this is a cherry-pick backport
  • Self-reviewed the diff
  • Useful pull request description
  • Reviewer requested

[thealmarty]

Summary:

• Add NOINLINE pragma to the local function: Y, but unreasonable request, esp with INLINABLE pragma. Good work around for now.
• Add strict language pragma: Y, but things may break and it's less controllable than NOINLINE.
• Add -fmax-simplifier-iterations=0 or -fmax-simplifier-iterations=0 -fforce-recomp or -fmax-simplifier-iterations=0 -fforce-recomp -O0 ghc options: N
• Turn off sm_pre_inline and force recompile: N
• Turn off sm_cast_swizzle and force recompile: N
• Turn off mkSimplPass or move it after the plugin pass makes the code not compile.

[thealmarty]

Investigation done. Created ticket for next steps.