[Mlir-commits] [mlir] [mlir][ODS] Allow inferring operand types from multiple variables (PR #127517)

[Jeff Niu]

================
@@ -303,22 +303,33 @@ struct OperationFormat {
     std::optional<int> getBuilderIdx() const { return builderIdx; }
     void setBuilderIdx(int idx) { builderIdx = idx; }
 
+    int getNumArgs() const { return resolver.size(); }
+
     /// Get the variable this type is resolved to, or nullptr.
-    const NamedTypeConstraint *getVariable() const {
-      return llvm::dyn_cast_if_present<const NamedTypeConstraint *>(resolver);
+    const NamedTypeConstraint *getVariable(int i) const {
+      return resolver.empty()
+                 ? nullptr
+                 : llvm::dyn_cast_if_present<const NamedTypeConstraint *>(
+                       resolver[i]);
----------------
Mogball wrote:

```suggestion
      if (resolver.empty())
          return nullptr
      return llvm::dyn_cast_if_present<const NamedTypeConstraint *>(resolver[i]);
```

1 less line of code

https://github.com/llvm/llvm-project/pull/127517