[CHERIoT] Re-enable MachineOutliner for CHERIoT

Author: resistor

llvm/lib/Target/RISCV/RISCVInstrInfo.cpp

@@ -2230,12 +2230,6 @@ bool RISCVInstrInfo::isFunctionSafeToOutlineFrom(
     MachineFunction &MF, bool OutlineFromLinkOnceODRs) const {
   const Function &F = MF.getFunction();
 
-  // XXX cheriot: Disable machine outliner
-  RISCVABI::ABI MFABI = MF.getSubtarget<RISCVSubtarget>().getTargetABI();
-  bool IsCheriot = (MFABI == RISCVABI::ABI_CHERIOT) || (MFABI == RISCVABI::ABI_CHERIOT_BAREMETAL);
-  if (IsCheriot)
-    return false;
-
   // Can F be deduplicated by the linker? If it can, don't outline from it.
   if (!OutlineFromLinkOnceODRs && F.hasLinkOnceODRLinkage())
     return false;