[PATCH] D148792: LangRef: Clarify behavior of minnum/maxnum
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Apr 20 05:29:20 PDT 2023
arsenm added a comment.
In D148792#4283344 <https://reviews.llvm.org/D148792#4283344>, @nikic wrote:
>> Also remove a note about the result always being quiet which is directly contradicted by the following paragraph.
>
> Where is the contradiction?
The entire following paragraph. "Unlike the IEEE-754 2008 behavior, this does not distinguish between
signaling and quiet NaN inputs. If a target's implementation follows
the standard and returns a quiet NaN if either input is a signaling
NaN, the intrinsic lowering is responsible for quieting the inputs to
correctly return the non-NaN input (e.g. by using the equivalent of
``llvm.canonicalize``)."
This is not returning an "always quiet nan" and matches the libm behavior
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D148792/new/
https://reviews.llvm.org/D148792
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