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

[via llvm-commits]

================
@@ -23,6 +24,11 @@ STATISTIC(NumPatternEmitted, "Number of patterns emitted");
 using namespace llvm;
 using namespace gi;
 
+static cl::opt<bool>
+    AllowExtendedLLT("gisel-extended-llt",
----------------
DenisGZM wrote:

Yes, you're right. This is because the patch didn't mean to enable extended llt in all available targets. Target maintainers can decide if they want to support such changes and if they are ready for it.

Or the question is, why are there so few tests? 

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