[llvm] [RISCV][Scheduler] Add scheduling definitions for 128-bit Zfa instructions (PR #140003)

[Pengcheng Wang via llvm-commits]

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@@ -447,13 +450,16 @@ let Unsupported = true in {
 def : WriteRes<WriteFRoundF16, []>;
 def : WriteRes<WriteFRoundF32, []>;
 def : WriteRes<WriteFRoundF64, []>;
+def : WriteRes<WriteFRoundF128, []>;
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wangpc-pp wrote:

Maybe define `UnsupportedSchedZfaWithQ`?

https://github.com/llvm/llvm-project/pull/140003