[llvm] [AVR] Fix a crash in AVRInstrInfo::insertIndirectBranch (PR #67324)

[Jianjian Guan via llvm-commits]

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@@ -573,7 +573,7 @@ void AVRInstrInfo::insertIndirectBranch(MachineBasicBlock &MBB,
   if (STI.hasJMPCALL())
     BuildMI(&MBB, DL, get(AVR::JMPk)).addMBB(&NewDestBB);
   else
-    report_fatal_error("cannot create long jump without FeatureJMPCALL");
+    BuildMI(&MBB, DL, get(AVR::RJMPk)).addMBB(&NewDestBB);
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jacquesguan wrote:

Should we check the BrOffset? Because relative jump can only handle the range between -2k to+2k.

https://github.com/llvm/llvm-project/pull/67324