[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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@@ -39,68 +39,149 @@ class raw_ostream;
 
 class LLT {
 public:
+  enum class FPVariant {
+    IEEE_FLOAT = 0x0,
+    BRAIN_FLOAT = 0x1,     // BRAIN_FLOAT
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arsenm wrote:

Maybe just call this BF16? 

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