[llvm] [AArch64] Add assembly/disaasembly of atomic ld/st (PR #112892)

[via llvm-commits]

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@@ -0,0 +1,6 @@
+// RUN: not llvm-mc -triple aarch64 -filetype asm -o - %s 2>&1 | FileCheck %s
+
+.arch_extension lsfe
+.arch_extension nolsfe
+ldfadd h0, h1, [x2]
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SpencerAbson wrote:

Shouldn't this fail?

https://github.com/llvm/llvm-project/pull/112892