[llvm] [AMDGPU][True16][CodeGen] do not legalize t16 operand during user scan (PR #145450)

[Jay Foad via llvm-commits]

================
@@ -8744,11 +8746,14 @@ void SIInstrInfo::addUsersToMoveToVALUWorklist(
         ++I;
       } while (I != E && I->getParent() == &UseMI);
     } else {
-      legalizeOperandsVALUt16(UseMI, OpNo, MRI);
+      LegalizeList.push_back(std::make_pair(&UseMI, OpNo));
----------------
jayfoad wrote:

Better:
```suggestion
      LegalizeList.push_back(std::pair(&UseMI, OpNo));
```
Even better:
```suggestion
      LegalizeList.emplace_back(&UseMI, OpNo);
```

https://github.com/llvm/llvm-project/pull/145450