diff --git a/mlir/lib/Transforms/LoopFusion.cpp b/mlir/lib/Transforms/LoopFusion.cpp
--- a/mlir/lib/Transforms/LoopFusion.cpp
+++ b/mlir/lib/Transforms/LoopFusion.cpp
@@ -768,7 +768,8 @@
       SmallVector<MemoryEffects::EffectInstance, 1> effects;
       effectInterface.getEffects(effects);
       if (llvm::any_of(effects, [](const MemoryEffects::EffectInstance &it) {
-            return isa<MemoryEffects::Write>(it.getEffect());
+            return isa<MemoryEffects::Write, MemoryEffects::Free>(
+                it.getEffect());
           })) {
         Node node(nextNodeId++, &op);
         nodes.insert({node.id, node});
diff --git a/mlir/test/Transforms/loop-fusion.mlir b/mlir/test/Transforms/loop-fusion.mlir
--- a/mlir/test/Transforms/loop-fusion.mlir
+++ b/mlir/test/Transforms/loop-fusion.mlir
@@ -2835,3 +2835,27 @@
 
   return
 }
+
+// -----
+func @should_not_fuse_due_to_dealloc(%arg0: memref<16xf32>){
+  %A = alloc() : memref<16xf32>
+  %C = alloc() : memref<16xf32>
+  %cst_1 = constant 1.000000e+00 : f32
+  affine.for %arg1 = 0 to 16 {
+    %a = affine.load %arg0[%arg1] : memref<16xf32>
+    affine.store %a, %A[%arg1] : memref<16xf32>
+    affine.store %a, %C[%arg1] : memref<16xf32>
+  }
+  dealloc %C : memref<16xf32>
+  %B = alloc() : memref<16xf32>
+  affine.for %arg1 = 0 to 16 {
+    %a = affine.load %A[%arg1] : memref<16xf32>
+    %b = addf %cst_1, %a : f32
+    affine.store %b, %B[%arg1] : memref<16xf32>
+  }
+  dealloc %A : memref<16xf32>
+  return
+}
+// CHECK-LABEL: func @should_not_fuse_due_to_dealloc
+// CHECK:         affine.for
+// CHECK:         affine.for