[llvm] [DropUnnecessaryAssumes] Add support for operand bundles (PR #160311)

[Ramkumar Ramachandra via llvm-commits]

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@@ -69,17 +85,10 @@ findAffectedValues(CallBase *CI, TargetTransformInfo *TTI,
     }
   };
 
-  for (unsigned Idx = 0; Idx != CI->getNumOperandBundles(); Idx++) {
-    OperandBundleUse Bundle = CI->getOperandBundleAt(Idx);
-    if (Bundle.getTagName() == "separate_storage") {
-      assert(Bundle.Inputs.size() == 2 &&
-             "separate_storage must have two args");
-      AddAffectedVal(getUnderlyingObject(Bundle.Inputs[0]), Idx);
-      AddAffectedVal(getUnderlyingObject(Bundle.Inputs[1]), Idx);
-    } else if (Bundle.Inputs.size() > ABA_WasOn &&
-               Bundle.getTagName() != IgnoreBundleTag)
-      AddAffectedVal(Bundle.Inputs[ABA_WasOn], Idx);
-  }
+  for (unsigned Idx = 0; Idx != CI->getNumOperandBundles(); Idx++)
+    AssumptionCache::findValuesAffectedByOperandBundle(
+        CI->getOperandBundleAt(Idx),
+        [&](Value *V) { Affected.push_back({V, Idx}); });
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artagnon wrote:

```suggestion
        [&](Value *V) { Affected.emplace_back(V, Idx); });
```

https://github.com/llvm/llvm-project/pull/160311