[llvm] [SelectionDAG] Change computeAliasing signature from optional<uint64> to LocationSize. (PR #83017)

[Simon Pilgrim via llvm-commits]

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@@ -27835,40 +27835,42 @@ bool DAGCombiner::mayAlias(SDNode *Op0, SDNode *Op1) const {
     bool IsAtomic;
     SDValue BasePtr;
     int64_t Offset;
-    std::optional<int64_t> NumBytes;
+    LocationSize NumBytes;
     MachineMemOperand *MMO;
   };
 
   auto getCharacteristics = [](SDNode *N) -> MemUseCharacteristics {
     if (const auto *LSN = dyn_cast<LSBaseSDNode>(N)) {
       int64_t Offset = 0;
       if (auto *C = dyn_cast<ConstantSDNode>(LSN->getOffset()))
-        Offset = (LSN->getAddressingMode() == ISD::PRE_INC)
-                     ? C->getSExtValue()
-                     : (LSN->getAddressingMode() == ISD::PRE_DEC)
-                           ? -1 * C->getSExtValue()
-                           : 0;
+        Offset = (LSN->getAddressingMode() == ISD::PRE_INC) ? C->getSExtValue()
+                 : (LSN->getAddressingMode() == ISD::PRE_DEC)
+                     ? -1 * C->getSExtValue()
+                     : 0;
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RKSimon wrote:

separate clang-format cleanup?

https://github.com/llvm/llvm-project/pull/83017