[llvm] [NFC][AArch64] Add getNonStrictBranchCondition TII hook (PR #190850)

[Nashe Mncube via llvm-commits]

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@@ -371,7 +347,9 @@ AArch64ConditionOptimizerImpl::getAdjustedCmpInfo(MachineInstr *CmpMI,
     Opc = getComplementOpc(Opc);
   }
 
-  return {NewImm, Opc, getAdjustedCmp(Cmp)};
+  int RelaxedCC = TII->getNonStrictBranchCondition((int)Cmp);
+  assert(RelaxedCC != -1 && "Expected a strict condition code");
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nasherm wrote:

What happens if assertions aren't enabled i.e. in release builds?

https://github.com/llvm/llvm-project/pull/190850