[lld] [LLD][COFF] Add support for hybrid ARM64X entry points (PR #123096)

[Martin Storsjö via llvm-commits]

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@@ -2584,6 +2586,16 @@ void Writer::createDynamicRelocs() {
                          coffHeaderOffset + offsetof(coff_file_header, Machine),
                          AMD64);
 
+  if (ctx.symtab.entry || ctx.hybridSymtab->entry) {
+    Defined *entrySym = ctx.hybridSymtab->entry
+                            ? dyn_cast<Defined>(ctx.hybridSymtab->entry)
+                            : nullptr;
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mstorsjo wrote:

Wouldn't a `dyn_cast_or_null<Defined>(ctx.hybridSymtab->entry)` be equivalent to this whole ternary expression?

https://github.com/llvm/llvm-project/pull/123096