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[mlir][func] Fix ReturnOp issue #112146 #112385

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[mlir][func] Fix ReturnOp issue #112146 #112385

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6 changes: 4 additions & 2 deletions mlir/include/mlir/Dialect/Func/IR/FuncOps.td
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Original file line number Diff line number Diff line change
Expand Up @@ -338,8 +338,10 @@ def FuncOp : Func_Op<"func", [
// ReturnOp
//===----------------------------------------------------------------------===//

def ReturnOp : Func_Op<"return", [Pure, HasParent<"FuncOp">,
MemRefsNormalizable, ReturnLike, Terminator]> {
def ReturnOp : Func_Op<"return", [
Pure, HasParent<"FuncOp">, MemRefsNormalizable, ReturnLike, Terminator,
DeclareOpInterfaceMethods<RegionBranchTerminatorOpInterface, ["getSuccessorRegions"]>]
> {
let summary = "Function return operation";
let description = [{
The `func.return` operation represents a return operation within a function.
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6 changes: 6 additions & 0 deletions mlir/lib/Dialect/Func/IR/FuncOps.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -306,6 +306,12 @@ LogicalResult ReturnOp::verify() {
return success();
}

void ReturnOp::getSuccessorRegions(ArrayRef<Attribute> operands,
SmallVectorImpl<RegionSuccessor> &regions) {
// Return control back to func::FuncOp.
regions.push_back(RegionSuccessor());
}

//===----------------------------------------------------------------------===//
// TableGen'd op method definitions
//===----------------------------------------------------------------------===//
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