[llvm] [SDAG] Reverse the canonicalization of isInf/isNanOrInf (PR #81404)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> Looks like we may still get libcall with this PR. https://godbolt.org/z/W1Pq8G3ar

You need an additional fabs. This patch only reverses the transforms in https://github.com/llvm/llvm-project/commit/2b582440c16c72b6b021ea5c212ceda3bdfb2b9b to avoid breaking AMDGPU tests.

https://github.com/llvm/llvm-project/pull/81404