[llvm] [GlobalISel][LLT] Introduce FPInfo for LLT (Enable bfloat, ppc128float and others in GlobalISel) (PR #155107)

[Matt Arsenault via llvm-commits]

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@@ -380,7 +380,8 @@ LLVM_ABI LegalizeMutation changeElementCountTo(unsigned TypeIdx,
 
 /// Keep the same scalar or element type as \p TypeIdx, but take the number of
 /// elements from \p Ty.
-LLVM_ABI LegalizeMutation changeElementCountTo(unsigned TypeIdx, LLT Ty);
+LLVM_ABI LegalizeMutation changeElementCountTo(unsigned TypeIdx,
+                                               ElementCount EC);
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arsenm wrote:

Can you submit this as a separate NFC patch, I'm surprised this was encoded as an LLT 

https://github.com/llvm/llvm-project/pull/155107