[mlir][scf] Remove unnecessary IRMapping in outlineSingleBlockRegion (NFC) (#158675)

linuxlonelyeagle · web-flow · commit 3e74e533fc0c · 2025-09-16T07:09:19.000+08:00
Removed redundant IRMapping variables from outlineSingleBlockRegion.
diff --git a/mlir/lib/Dialect/SCF/Utils/Utils.cpp b/mlir/lib/Dialect/SCF/Utils/Utils.cpp
@@ -202,8 +202,7 @@ FailureOr<func::FuncOp> mlir::outlineSingleBlockRegion(RewriterBase &rewriter,
       OpBuilder::InsertionGuard g(rewriter);
       rewriter.setInsertionPointToStart(outlinedFuncBody);
       if (Operation *cst = orig.getDefiningOp<arith::ConstantIndexOp>()) {
-        IRMapping bvm;
-        repl = rewriter.clone(*cst, bvm)->getResult(0);
+        repl = rewriter.clone(*cst)->getResult(0);
       }
     }
     orig.replaceUsesWithIf(repl, [&](OpOperand &opOperand) {

Original file line number	Diff line number	Diff line change
`@@ -202,8 +202,7 @@ FailureOr<func::FuncOp> mlir::outlineSingleBlockRegion(RewriterBase &rewriter,`
`202`	`202`	`OpBuilder::InsertionGuard g(rewriter);`
`203`	`203`	`rewriter.setInsertionPointToStart(outlinedFuncBody);`
`204`	`204`	`if (Operation *cst = orig.getDefiningOp<arith::ConstantIndexOp>()) {`
`205`		`- IRMapping bvm;`
`206`		`- repl = rewriter.clone(*cst, bvm)->getResult(0);`
	`205`	`+ repl = rewriter.clone(*cst)->getResult(0);`
`207`	`206`	`}`
`208`	`207`	`}`
`209`	`208`	`orig.replaceUsesWithIf(repl, [&](OpOperand &opOperand) {`