[llvm] [RISCV][MC] Support Base P non-GPR pair instructions (PR #137927)

[Kito Cheng via llvm-commits]

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@@ -1,39 +1,102 @@
-# RUN: llvm-mc %s -triple=riscv64 -mattr=+experimental-p -M no-aliases -show-encoding \
+# RUN: llvm-mc %s -triple=riscv64 -mattr=+experimental-p -riscv-no-aliases -show-encoding \
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kito-cheng wrote:

Why change this to `-riscv-no-aliases`? seems like all other line still using `-M no-aliases`?

https://github.com/llvm/llvm-project/pull/137927