[llvm-branch-commits] [flang] [mlir] [mlir][Transforms] Support 1:N mappings in `ConversionValueMapping` (PR #116524)

[Markus Böck via llvm-branch-commits]

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@@ -1423,37 +1458,21 @@ ValueRange ConversionPatternRewriterImpl::buildUnresolvedMaterialization(
   builder.setInsertionPoint(ip.getBlock(), ip.getPoint());
   auto convertOp =
       builder.create<UnrealizedConversionCastOp>(loc, outputTypes, inputs);
-  if (valueToMap) {
-    assert(outputTypes.size() == 1 && "1:N mapping is not supported");
-    mapping.map(valueToMap, convertOp.getResult(0));
-  }
+  if (!valuesToMap.empty())
+    mapping.map(valuesToMap, convertOp.getResults());
   if (castOp)
     *castOp = convertOp;
   appendRewrite<UnresolvedMaterializationRewrite>(convertOp, converter, kind,
-                                                  originalType, valueToMap);
+                                                  originalType, valuesToMap);
----------------
zero9178 wrote:

```suggestion
                                                  originalType, std::move(valuesToMap));
```

https://github.com/llvm/llvm-project/pull/116524