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 +200,6 @@
 //===----------------------------------------------------------------------===//
 // 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_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/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp b/mlir/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp
--- a/mlir/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp
+++ b/mlir/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp
@@ -978,9 +978,7 @@
     Type eltType = vectorType ? vectorType.getElementType() : printType;
     int64_t rank = vectorType ? vectorType.getRank() : 0;
     Operation *printer;
-    if (eltType.isSignlessInteger(1))
-      printer = getPrintI1(op);
-    else if (eltType.isSignlessInteger(32))
+    if (eltType.isSignlessInteger(1) || eltType.isSignlessInteger(32))
       printer = getPrintI32(op);
     else if (eltType.isSignlessInteger(64))
       printer = getPrintI64(op);
@@ -1004,6 +1002,17 @@
                  int64_t rank) const {
     Location loc = op->getLoc();
     if (rank == 0) {
+      if (value.getType() ==
+          LLVM::LLVMType::getInt1Ty(typeConverter.getDialect())) {
+        // Convert i1 (bool) to i32 so we can use the print_i32 method.
+        // This avoids the need for a print_i1 method with an unclear ABI.
+        auto i32Type = LLVM::LLVMType::getInt32Ty(typeConverter.getDialect());
+        auto trueVal = rewriter.create<ConstantOp>(
+            loc, i32Type, rewriter.getI32IntegerAttr(1));
+        auto falseVal = rewriter.create<ConstantOp>(
+            loc, i32Type, rewriter.getI32IntegerAttr(0));
+        value = rewriter.create<SelectOp>(loc, value, trueVal, falseVal);
+      }
       emitCall(rewriter, loc, printer, value);
       return;
     }
@@ -1047,11 +1056,6 @@
   }
 
   // Helpers for method names.
-  Operation *getPrintI1(Operation *op) const {
-    LLVM::LLVMDialect *dialect = typeConverter.getDialect();
-    return getPrint(op, dialect, "print_i1",
-                    LLVM::LLVMType::getInt1Ty(dialect));
-  }
   Operation *getPrintI32(Operation *op) const {
     LLVM::LLVMDialect *dialect = typeConverter.getDialect();
     return getPrint(op, dialect, "print_i32",
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 +23,6 @@
 // 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_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); }
diff --git a/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir b/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
--- a/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
+++ b/mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
@@ -439,8 +439,11 @@
 }
 // CHECK-LABEL: llvm.func @vector_print_scalar_i1(
 // CHECK-SAME: %[[A:.*]]: !llvm.i1)
-//       CHECK:    llvm.call @print_i1(%[[A]]) : (!llvm.i1) -> ()
-//       CHECK:    llvm.call @print_newline() : () -> ()
+//       CHECK: %[[T:.*]] = llvm.mlir.constant(1 : i32) : !llvm.i32
+//       CHECK: %[[F:.*]] = llvm.mlir.constant(0 : i32) : !llvm.i32
+//       CHECK: %[[S:.*]] = llvm.select %[[A]], %[[T]], %[[F]] : !llvm.i1, !llvm.i32
+//       CHECK: llvm.call @print_i32(%[[S]]) : (!llvm.i32) -> ()
+//       CHECK: llvm.call @print_newline() : () -> ()
 
 func @vector_print_scalar_i32(%arg0: i32) {
   vector.print %arg0 : i32