[TII][X86] Do not schedule frame-setup/frame-destory instructions (llvm#96611)

frame-setup/frame-destroy instruction can not be scheduled around by
PostRAScheduler. Their order is critical for SEH.

Author: HaohaiWen

llvm/lib/Target/X86/X86InstrInfo.cpp

@@ -8832,6 +8832,11 @@ bool X86InstrInfo::isSchedulingBoundary(const MachineInstr &MI,
       Opcode == X86::PLDTILECFGV)
     return true;
 
+  // Frame setup and destory can't be scheduled around.
+  if (MI.getFlag(MachineInstr::FrameSetup) ||
+      MI.getFlag(MachineInstr::FrameDestroy))
+    return true;
+
   return TargetInstrInfo::isSchedulingBoundary(MI, MBB, MF);
 }