[libc-commits] [libc] [libc] Alternative algorithm for decimal FP printf (PR #123643)

[Simon Tatham via libc-commits]

statham-arm wrote:

Thank you both for approving!

Would you please also look at #123580, which this FP printf strategy depends on? It _works_ correctly with or without that patch, but it's a huge slowdown without it, because this patch depends on `IntegerToString<BigInt>` to make its output digit strings, and that's currently much slower than it needs to be.

https://github.com/llvm/llvm-project/pull/123643