[llvm] [LoongArch] Support .option directive (PR #110404)

[Lu Weining via llvm-commits]

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@@ -0,0 +1,59 @@
+# RUN: llvm-mc --triple loongarch64 --mattr=-relax < %s \
+# RUN:     | FileCheck --check-prefix=CHECK-ASM %s
+# RUN: llvm-mc --triple loongarch64 --filetype=obj < %s \
+# RUN:     | llvm-readobj -r - | FileCheck --check-prefix=CHECK-RELOC %s
+
+# Test the operation of the push and pop assembler directives when
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SixWeining wrote:

Use two `#`s as non-check comments.

https://github.com/llvm/llvm-project/pull/110404