remove extra dominance check

Author: srcarroll

mlir/lib/Dialect/SCF/Transforms/ParallelLoopFusion.cpp

@@ -158,13 +158,6 @@ static void fuseIfLegal(ParallelOp firstPloop, ParallelOp &secondPloop,
                      mayAlias))
     return;
 
-  DominanceInfo dom;
-  // We are fusing first loop into second, make sure there are no users of the
-  // first loop results between loops.
-  for (Operation *user : firstPloop->getUsers())
-    if (!dom.properlyDominates(secondPloop, user, /*enclosingOpOk*/ false))
-      return;
-
   IRRewriter rewriter(builder);
   secondPloop = mlir::fuseIndependentSiblingParallelLoops(
       firstPloop, secondPloop, rewriter);