[clang] [clang] Add fbasic-block-sections support for AArch64 (PR #80916)

[Daniel Hoekwater via cfe-commits]

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@@ -5972,6 +5972,15 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
             << A->getAsString(Args) << A->getValue();
       else
         A->render(Args, CmdArgs);
+    } else if (Triple.isAArch64()) {
+      // "all" is not supported on AArch64 since branch relaxation creates new
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dhoekwater wrote:

Yep, added! I got so caught up writing a comment that I forgot to actually do what I created this PR to do...

https://github.com/llvm/llvm-project/pull/80916