[llvm] [BOLT][AArch64] Introduce SPE mode in BasicAggregation (PR #120741)

[Maksim Panchenko via llvm-commits]

================
@@ -245,6 +247,13 @@ int main(int argc, char **argv) {
       if (Error E = RIOrErr.takeError())
         report_error(opts::InputFilename, std::move(E));
       RewriteInstance &RI = *RIOrErr.get();
+
+      if (opts::AggregateOnly && !RI.getBinaryContext().isAArch64() &&
+          opts::ArmSPE == 1) {
+        errs() << "BOLT-ERROR: -spe is available only on AArch64.\n";
----------------
maksfb wrote:

nit: use `ToolName` instead of `"BOLT-ERROR"`.

https://github.com/llvm/llvm-project/pull/120741