[llvm] LangRef: Clarify llvm.minnum and llvm.maxnum about sNaN and signed zero (PR #112852)

[Matt Arsenault via llvm-commits]

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@@ -21970,7 +21979,7 @@ This is an overloaded intrinsic.
 Overview:
 """""""""
 
-Predicated floating-point IEEE-754 minNum of two vectors of floating-point values.
+Predicated floating-point IEEE-754-2008 minNum of two vectors of floating-point values.
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arsenm wrote:

Given we call out 2008 here as the base operation, probably should do the same 

https://github.com/llvm/llvm-project/pull/112852