[llvm-branch-commits] [llvm] [ARM][Thumb1] Verify EstimateFunctionSizeInBytes every time (PR #203319)

[Simon Tatham via llvm-branch-commits]

statham-arm wrote:

This is a (stacked) followup to #203318, which makes the estimates better.

https://github.com/llvm/llvm-project/pull/203319