[llvm] [IR] Add support for `nneg` flag with `uitofp` (PR #86141)

[via llvm-commits]

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@@ -2143,12 +2137,15 @@ class IRBuilderBase {
   }
 
   Value *CreateCast(Instruction::CastOps Op, Value *V, Type *DestTy,
-                    const Twine &Name = "") {
+                    const Twine &Name = "", bool IsNonNeg = false) {
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goldsteinn wrote:

ill revert that.

https://github.com/llvm/llvm-project/pull/86141