[llvm] [clang] [RISCV][MC] MC layer support for the experimental zalasr extension (PR #69685)

[Craig Topper via cfe-commits]

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@@ -797,6 +797,13 @@ def FeatureStdExtSvpbmt
     : SubtargetFeature<"svpbmt", "HasStdExtSvpbmt", "true",
                        "'Svpbmt' (Page-Based Memory Types)">;
 
+def FeatureStdExtZalasr
+    : SubtargetFeature<"experimental-zalasr", "HasStdExtZalasr", "true",
+                       "'Zalasr' (Load-Acquire and Store-Release Instructions)">;
+def HasStdExtZalasr : Predicate<"Subtarget->hasStdExtZalasr()">,
+                               AssemblerPredicate<(all_of FeatureStdExtZalasr),
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topperc wrote:

Align `AssemblerPredicate` with `Predicate` on the previous line. This file was recently reformatted.

https://github.com/llvm/llvm-project/pull/69685