[clang] [SFrame][Retry] Add assembler option --gsframe (PR #165806)

[Tarun Prabhu via cfe-commits]

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@@ -2626,6 +2626,14 @@ static void CollectArgsForIntegratedAssembler(Compilation &C,
                                   llvm::codegenoptions::DebugInfoConstructor,
                                   DwarfVersion, llvm::DebuggerKind::Default);
         }
+      } else if (Value == "--gsframe") {
+        if (Triple.isOSBinFormatELF() && Triple.isX86()) {
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tarunprabhu wrote:

The comment on line 5970 says that unwind tables are only defined for `x86` and `aarch64`, but this seems to only add `--gsframe` for `x86`. Is this intentional?

https://github.com/llvm/llvm-project/pull/165806