[llvm] [Transforms] Resolve FIXME: Pick the smallest legal type that fits (PR #79158)

[via llvm-commits]

AtariDreams wrote:

So here is a question about this patch:

Say the floating point number is -INT_MIN, aka more than INT_MAX.

It will then be delegated to an i64, as 2147483648 is 1 more than INT_MAX, but  -2147483648 can be i32 as it is INT_MIN. Do I need a special case for this, or does this activate the overflow thing?

https://github.com/llvm/llvm-project/pull/79158