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test.patch

diff --git a/test/raise/spectriad-mlir-stage-13-v1.mlir b/test/raise/spectriad-mlir-stage-13-v1.mlir
new file mode 100644
--- /dev/null
+++ b/test/raise/spectriad-mlir-stage-13-v1.mlir
@@ -0,0 +1,37 @@
+// RUN: loom-raise-opt --loom-lower-graph-memory %s | FileCheck %s
+
+module attributes {
+} {
+  dataflow.graph private @source_memory_graph(
+      %start: none, %base: !llvm.ptr, %expected: i32, %desired: i32,
+      %index: i64, %cond: i1) -> ()
+      attributes {input_segments = array<i32: 5, 0, 0>,
+                  result_segments = array<i32: 0, 0, 0>} {
+    %ptr = llvm.getelementptr inbounds %base[%index]
+        : (!llvm.ptr, i64) -> !llvm.ptr, !llvm.array<4 x i8>
+    %lower = arith.constant 0 : index
+    %upper = arith.constant 4 : index
+    %step = arith.constant 1 : index
+    scf.for %iv = %lower to %upper step %step {
+    llvm.fence syncscope("system") acquire
+    }
+    dataflow.graph.return %start : none
+  }
+}
+
+// CHECK: module {
+// CHECK-NEXT:   dataflow.graph private @source_memory_graph(%arg0: none, %arg1: !llvm.ptr, %arg2: i32, %arg3: i32, %arg4: i64, %arg5: i1, %arg6: memref<?xi8>) -> () attributes {input_segments = array<i32: 5, 0, 1>, result_segments = array<i32: 0, 0, 0>} {
+// CHECK-NEXT:     %c0 = arith.constant 0 : index
+// CHECK-NEXT:     %c4 = arith.constant 4 : index
+// CHECK-NEXT:     %c1 = arith.constant 1 : index
+// CHECK-NEXT:     %0 = arith.index_cast %c0 : index to i32
+// CHECK-NEXT:     %1 = arith.index_cast %c4 : index to i32
+// CHECK-NEXT:     %2 = arith.index_cast %c1 : index to i32
+// CHECK-NEXT:     %iv, %phase = dataflow.stream %0, %1, %2 step add while slt : i32
+// CHECK-NEXT:     %3 = dataflow.carry %phase, %arg0, %5 : none
+// CHECK-NEXT:     %4:2 = dataflow.demux %phase, %3 : (i1, none) -> (none, none)
+// CHECK-NEXT:     %5 = dataflow.fence %4#1 {contract = #dataflow.fence_contract<ordering = acquire, sync_scope = <system>>}
+// CHECK-NEXT:     dataflow.graph.return %4#0 : none
+// CHECK-NEXT:   }
+// CHECK-NEXT: }
+// CHECK-EMPTY: