diff --git a/mlir/include/mlir/ExecutionEngine/CRunnerUtils.h b/mlir/include/mlir/ExecutionEngine/CRunnerUtils.h
--- a/mlir/include/mlir/ExecutionEngine/CRunnerUtils.h
+++ b/mlir/include/mlir/ExecutionEngine/CRunnerUtils.h
@@ -200,7 +200,7 @@
 //===----------------------------------------------------------------------===//
 // Small runtime support "lib" for vector.print lowering during codegen.
 //===----------------------------------------------------------------------===//
-extern "C" MLIR_CRUNNERUTILS_EXPORT void print_i1(bool b);
+extern "C" MLIR_CRUNNERUTILS_EXPORT void print_i1(int b);
 extern "C" MLIR_CRUNNERUTILS_EXPORT void print_i32(int32_t i);
 extern "C" MLIR_CRUNNERUTILS_EXPORT void print_i64(int64_t l);
 extern "C" MLIR_CRUNNERUTILS_EXPORT void print_f32(float f);
diff --git a/mlir/integration_test/Dialect/Vector/CPU/test-create-mask-v4i1.mlir b/mlir/integration_test/Dialect/Vector/CPU/test-create-mask-v4i1.mlir
new file mode 100644
--- /dev/null
+++ b/mlir/integration_test/Dialect/Vector/CPU/test-create-mask-v4i1.mlir
@@ -0,0 +1,99 @@
+// RUN: mlir-opt %s -convert-scf-to-std -convert-vector-to-llvm -convert-std-to-llvm | \
+// RUN: mlir-cpu-runner -e entry -entry-point-result=void  \
+// RUN:   -shared-libs=%mlir_integration_test_dir/libmlir_c_runner_utils%shlibext | \
+// RUN: FileCheck %s
+
+// NOTE: This is similar to test-create-mask.mlir, but with a different length,
+//       because the v4i1 vector specifially exposed bugs in the LLVM backend.
+
+func @entry() {
+  %c0 = constant 0 : index
+  %c1 = constant 1 : index
+  %c2 = constant 2 : index
+  %c3 = constant 3 : index
+  %c5 = constant 5 : index
+
+  //
+  // 1-D.
+  //
+
+  %1 = vector.create_mask %c2 : vector<4xi1>
+  vector.print %1 : vector<4xi1>
+  // CHECK: ( 1, 1, 0, 0 )
+
+  scf.for %i = %c0 to %c5 step %c1 {
+    %2 = vector.create_mask %i : vector<4xi1>
+    vector.print %2 : vector<4xi1>
+  }
+  // CHECK: ( 0, 0, 0, 0 )
+  // CHECK: ( 1, 0, 0, 0 )
+  // CHECK: ( 1, 1, 0, 0 )
+  // CHECK: ( 1, 1, 1, 0 )
+  // CHECK: ( 1, 1, 1, 1 )
+
+  //
+  // 2-D.
+  //
+
+  %3 = vector.create_mask %c2, %c3 : vector<4x4xi1>
+  vector.print %3 : vector<4x4xi1>
+  // CHECK: ( ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+
+  %4 = vector.create_mask %c3, %c2 : vector<4x4xi1>
+  vector.print %4 : vector<4x4xi1>
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ) )
+
+  scf.for %i = %c0 to %c5 step %c1 {
+    %5 = vector.create_mask %c2, %i : vector<4x4xi1>
+    vector.print %5 : vector<4x4xi1>
+  }
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+
+  scf.for %i = %c0 to %c5 step %c1 {
+    %6 = vector.create_mask %i, %c2 : vector<4x4xi1>
+    vector.print %6 : vector<4x4xi1>
+  }
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ) )
+
+  scf.for %i = %c0 to %c5 step %c1 {
+    scf.for %j = %c0 to %c5 step %c1 {
+      %7 = vector.create_mask %i, %j : vector<4x4xi1>
+      vector.print %7 : vector<4x4xi1>
+    }
+  }
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ), ( 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ), ( 1, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ), ( 1, 1, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ), ( 1, 1, 1, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ), ( 1, 1, 1, 1 ) )
+
+  return
+}
diff --git a/mlir/integration_test/Dialect/Vector/CPU/test-create-mask.mlir b/mlir/integration_test/Dialect/Vector/CPU/test-create-mask.mlir
new file mode 100644
--- /dev/null
+++ b/mlir/integration_test/Dialect/Vector/CPU/test-create-mask.mlir
@@ -0,0 +1,110 @@
+// RUN: mlir-opt %s -convert-scf-to-std -convert-vector-to-llvm -convert-std-to-llvm | \
+// RUN: mlir-cpu-runner -e entry -entry-point-result=void  \
+// RUN:   -shared-libs=%mlir_integration_test_dir/libmlir_c_runner_utils%shlibext | \
+// RUN: FileCheck %s
+
+func @entry() {
+  %c0 = constant 0 : index
+  %c1 = constant 1 : index
+  %c2 = constant 2 : index
+  %c3 = constant 3 : index
+  %c6 = constant 6 : index
+
+  //
+  // 1-D.
+  //
+
+  %1 = vector.create_mask %c2 : vector<5xi1>
+  vector.print %1 : vector<5xi1>
+  // CHECK: ( 1, 1, 0, 0, 0 )
+
+  scf.for %i = %c0 to %c6 step %c1 {
+    %2 = vector.create_mask %i : vector<5xi1>
+    vector.print %2 : vector<5xi1>
+  }
+  // CHECK: ( 0, 0, 0, 0, 0 )
+  // CHECK: ( 1, 0, 0, 0, 0 )
+  // CHECK: ( 1, 1, 0, 0, 0 )
+  // CHECK: ( 1, 1, 1, 0, 0 )
+  // CHECK: ( 1, 1, 1, 1, 0 )
+  // CHECK: ( 1, 1, 1, 1, 1 )
+
+  //
+  // 2-D.
+  //
+
+  %3 = vector.create_mask %c2, %c3 : vector<5x5xi1>
+  vector.print %3 : vector<5x5xi1>
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+
+  %4 = vector.create_mask %c3, %c2 : vector<5x5xi1>
+  vector.print %4 : vector<5x5xi1>
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+
+  scf.for %i = %c0 to %c6 step %c1 {
+    %5 = vector.create_mask %c2, %i : vector<5x5xi1>
+    vector.print %5 : vector<5x5xi1>
+  }
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+
+  scf.for %i = %c0 to %c6 step %c1 {
+    %6 = vector.create_mask %i, %c2 : vector<5x5xi1>
+    vector.print %6 : vector<5x5xi1>
+  }
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ) )
+
+  scf.for %i = %c0 to %c6 step %c1 {
+    scf.for %j = %c0 to %c6 step %c1 {
+      %7 = vector.create_mask %i, %j : vector<5x5xi1>
+      vector.print %7 : vector<5x5xi1>
+    }
+  }
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 1 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ), ( 0, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ), ( 1, 0, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ), ( 1, 1, 0, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ), ( 1, 1, 1, 0, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ), ( 1, 1, 1, 1, 0 ) )
+  // CHECK: ( ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ), ( 1, 1, 1, 1, 1 ) )
+
+  return
+}
diff --git a/mlir/lib/ExecutionEngine/CRunnerUtils.cpp b/mlir/lib/ExecutionEngine/CRunnerUtils.cpp
--- a/mlir/lib/ExecutionEngine/CRunnerUtils.cpp
+++ b/mlir/lib/ExecutionEngine/CRunnerUtils.cpp
@@ -23,7 +23,7 @@
 // By providing elementary printing methods only, this
 // library can remain fully unaware of low-level implementation
 // details of our vectors. Also useful for direct LLVM IR output.
-extern "C" void print_i1(bool b) { fputc(b ? '1' : '0', stdout); }
+extern "C" void print_i1(int b) { fputc(b ? '1' : '0', stdout); }
 extern "C" void print_i32(int32_t i) { fprintf(stdout, "%" PRId32, i); }
 extern "C" void print_i64(int64_t l) { fprintf(stdout, "%" PRId64, l); }
 extern "C" void print_f32(float f) { fprintf(stdout, "%g", f); }