[clang] [llvm] [AArch64][clang][llvm] Add ACLE `stshh` atomic store builtin (PR #181386)

[Jonathan Thackray via cfe-commits]

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@@ -1577,6 +1577,21 @@ def : InstAlias<"nop", (NOP)>;
 
 def STSHH: STSHHI;
 
+let hasSideEffects = 1, mayStore = 1, isPseudo = 1, isCodeGenOnly = 1 in {
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jthackray wrote:

Thanks, updated.

https://github.com/llvm/llvm-project/pull/181386