[PATCH] D107882: BPF: Enable frontend constant folding for VLA size

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

I'd prefer not to mess with the AST if we don't need to; more differences between targets make it harder to understand any issues that come up.  BPF-flavored C already has enough weird differences without adding unnecessary changes.

If all you need is to avoid unnecessary llvm.stacksave calls, can you try messing with CodeGenFunction::EmitAutoVarAlloca?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107882/new/

https://reviews.llvm.org/D107882