[llvm] [LangRef] Fix code examples for fptosi/fptoui (PR #218121)

[Yingwei Zheng via llvm-commits]

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@@ -12923,8 +12923,8 @@ is a {ref}`poison value <poisonvalues>`.
 
 ```llvm
 %X = fptosi double -123.0 to i32      ; yields i32:-123
-%Y = fptosi float 1.0E-247 to i1      ; yields undefined:1
-%Z = fptosi float 1.04E+17 to i8      ; yields undefined:1
+%Y = fptosi float 1.0E-247 to i1      ; yields i1:poison
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dtcxzyw wrote:

I will post a fix later.


https://github.com/llvm/llvm-project/pull/218121