[llvm] [RISCV] Add initial assembler/MC layer support for big-endian (PR #146534)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,60 @@
+# RUN: llvm-mc -filetype=obj -triple=riscv32be < %s \
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MaskRay wrote:

`%s` instead of `< %s`

https://github.com/llvm/llvm-project/pull/146534