[llvm] [RISCV] Consolidate some DecoderNamespaces for standard extensions. (PR #128954)

[Pengcheng Wang via llvm-commits]

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@@ -721,6 +711,11 @@ DecodeStatus RISCVDisassembler::getInstruction32(MCInst &MI, uint64_t &Size,
   TRY_TO_DECODE_FEATURE_ANY(XRivosFeatureGroup, DecoderTableXRivos32, "Rivos");
 
   TRY_TO_DECODE(true, DecoderTable32, "RISCV32");
+  TRY_TO_DECODE(true, DecoderTableRV32GPRPair32,
+                "RV32GPRPair (rv32 and GPR pairs)");
+  TRY_TO_DECODE(true, DecoderTableZfinx32, "Zfinx (Float in Integer)");
+  TRY_TO_DECODE(true, DecoderTableZdinxRV32GPRPair32,
+                "ZdinxRV32GPRPair (rv32 and Double in Integer)");
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wangpc-pp wrote:

There were some concerns about ordering raised by @jrtc27 in https://reviews.llvm.org/D151309.
> Downstream we have a separate encoding mode that replaces some standard instructions with alternative ones; even if the order doesn't matter upstream, it would be preferable for us if the standard table was the last one not the first one.



https://github.com/llvm/llvm-project/pull/128954