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

[YunQiang Su via llvm-commits]

================
@@ -16464,8 +16464,8 @@ type.
 
 Semantics:
 """"""""""
-Follows the IEEE754 2008 semantics for minNum, except for handling of
-+0.0 vs -0.0. This matches the behavior of libm's fmin.
+Follows the IEEE754 2008 semantics for minNum.
+This also matches the behavior of libm's fmin.
----------------
wzssyqa wrote:

I you feel that the "IEEE754-2008 + +0.0>-0.0" is useful, we can export ISD::FMINNUM_IEEE as an new intrinsic.
Anyway, it will be another patch/PR.

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