diff --git a/mlir/lib/Conversion/StandardToLLVM/StandardToLLVM.cpp b/mlir/lib/Conversion/StandardToLLVM/StandardToLLVM.cpp
--- a/mlir/lib/Conversion/StandardToLLVM/StandardToLLVM.cpp
+++ b/mlir/lib/Conversion/StandardToLLVM/StandardToLLVM.cpp
@@ -376,6 +376,8 @@
 using AddFOpLowering = VectorConvertToLLVMPattern<AddFOp, LLVM::FAddOp>;
 using AddIOpLowering = VectorConvertToLLVMPattern<AddIOp, LLVM::AddOp>;
 using AndOpLowering = VectorConvertToLLVMPattern<AndOp, LLVM::AndOp>;
+using BitcastOpLowering =
+    VectorConvertToLLVMPattern<BitcastOp, LLVM::BitcastOp>;
 using CeilFOpLowering = VectorConvertToLLVMPattern<CeilFOp, LLVM::FCeilOp>;
 using CopySignOpLowering =
     VectorConvertToLLVMPattern<CopySignOp, LLVM::CopySignOp>;
@@ -1128,6 +1130,7 @@
       AndOpLowering,
       AssertOpLowering,
       AtomicRMWOpLowering,
+      BitcastOpLowering,
       BranchOpLowering,
       CallIndirectOpLowering,
       CallOpLowering,
diff --git a/mlir/test/Conversion/StandardToLLVM/convert-nd-vector-to-llvmir.mlir b/mlir/test/Conversion/StandardToLLVM/convert-nd-vector-to-llvmir.mlir
--- a/mlir/test/Conversion/StandardToLLVM/convert-nd-vector-to-llvmir.mlir
+++ b/mlir/test/Conversion/StandardToLLVM/convert-nd-vector-to-llvmir.mlir
@@ -180,3 +180,18 @@
   %0 = shift_right_unsigned %arg0, %c1 : vector<1x2x3xi64>
   return %0 : vector<1x2x3xi64>
 }
+
+// -----
+
+// CHECK-LABEL: @bitcast_2d
+func @bitcast_2d(%arg0: vector<2x4xf32>) {
+  // CHECK: llvm.mlir.undef
+  // CHECK: llvm.extractvalue %{{.*}}[0]
+  // CHECK: llvm.bitcast %{{.*}} : vector<4xf32> to vector<4xi32>
+  // CHECK: llvm.insertvalue %{{.*}}, %{{.*}}[0]
+  // CHECK: llvm.extractvalue %{{.*}}[1]
+  // CHECK: llvm.bitcast %{{.*}} : vector<4xf32> to vector<4xi32>
+  // CHECK: llvm.insertvalue %{{.*}}, %{{.*}}[1]
+  std.bitcast %arg0 : vector<2x4xf32> to vector<2x4xi32>
+  return
+}
diff --git a/mlir/test/Conversion/StandardToLLVM/standard-to-llvm.mlir b/mlir/test/Conversion/StandardToLLVM/standard-to-llvm.mlir
--- a/mlir/test/Conversion/StandardToLLVM/standard-to-llvm.mlir
+++ b/mlir/test/Conversion/StandardToLLVM/standard-to-llvm.mlir
@@ -928,6 +928,15 @@
 
 // -----
 
+// CHECK-LABEL: @bitcast_1d
+func @bitcast_1d(%arg0: vector<2xf32>) {
+  // CHECK: llvm.bitcast %{{.*}} : vector<2xf32> to vector<2xi32>
+  std.bitcast %arg0 : vector<2xf32> to vector<2xi32>
+  return
+}
+
+// -----
+
 // CHECK-LABEL: func @cmpf_2dvector(
 func @cmpf_2dvector(%arg0 : vector<4x3xf32>, %arg1 : vector<4x3xf32>) {
   // CHECK: %[[EXTRACT1:.*]] = llvm.extractvalue %arg0[0] : !llvm.array<4 x vector<3xf32>>