[llvm] [RISCV] AI Foundry ET extensions for RISC-V (PR #174571)

[Craig Topper via llvm-commits]

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@@ -194,6 +194,28 @@ static DecodeStatus DecodeFPR128RegisterClass(MCInst &Inst, uint32_t RegNo,
   return MCDisassembler::Success;
 }
 
+static DecodeStatus DecodeFPR256RegisterClass(MCInst &Inst, uint64_t RegNo,
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topperc wrote:

Why is RegNo a `uint64_t` here but `uint32_t` in all existing code?

https://github.com/llvm/llvm-project/pull/174571