[clang] [llvm] [LLVM][MC][AArch64] Assembler support for Armv9.6-A memory systems extensions (PR #112341)

[Jonathan Thackray via cfe-commits]

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@@ -0,0 +1,12 @@
+# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
+// RUN: llvm-mc -triple aarch64 -show-encoding -mattr=+pcdphint %s | FileCheck %s
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jthackray wrote:

I think these tests should also check the instructions are rejected with `-mattr=+nopcdphint`

https://github.com/llvm/llvm-project/pull/112341