[llvm] Bfi precision (PR #66285)

[Matthias Braun via llvm-commits]

MatzeB wrote:

Not sure how this change could trigger leaks. Changing BFI here should mostly effect inlining decisions, basic block placement, register allocation. But it shouldn't change program behavior or memory operations...

Will try to reproduce this test on my machine, to see if there's anything obvious for the change here (though at a first glance the test code seems to provoke an exception abort and would naturally leak because of it?)

https://github.com/llvm/llvm-project/pull/66285