[llvm] [GISel] Use GISelValueTracking in isKnownNeverNaN (PR #190542)

[Matt Arsenault via llvm-commits]

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@@ -341,11 +341,12 @@ isKnownToBeAPowerOfTwo(Register Val, const MachineRegisterInfo &MRI,
 /// Returns true if \p Val can be assumed to never be a NaN. If \p SNaN is true,
 /// this returns if \p Val can be assumed to never be a signaling NaN.
 LLVM_ABI bool isKnownNeverNaN(Register Val, const MachineRegisterInfo &MRI,
-                              bool SNaN = false);
+                              GISelValueTracking *VT, bool SNaN = false);
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arsenm wrote:

But I don't see how that's related, these naturally belong as ValueTracking methods alongside KnownBits 

https://github.com/llvm/llvm-project/pull/190542