diff --git a/mlir/lib/Conversion/VectorToSPIRV/VectorToSPIRV.cpp b/mlir/lib/Conversion/VectorToSPIRV/VectorToSPIRV.cpp
--- a/mlir/lib/Conversion/VectorToSPIRV/VectorToSPIRV.cpp
+++ b/mlir/lib/Conversion/VectorToSPIRV/VectorToSPIRV.cpp
@@ -50,6 +50,29 @@
 
 namespace {
 
+struct VectorShapeCast final : public OpConversionPattern<vector::ShapeCastOp> {
+  using OpConversionPattern::OpConversionPattern;
+
+  LogicalResult
+  matchAndRewrite(vector::ShapeCastOp shapeCastOp, OpAdaptor adaptor,
+                  ConversionPatternRewriter &rewriter) const override {
+    Type dstType = getTypeConverter()->convertType(shapeCastOp.getType());
+    if (!dstType)
+      return failure();
+
+    // If dstType is same as the source type or the vector size is 1, it can be
+    // directly replaced by the source.
+    if (dstType == adaptor.getSource().getType() ||
+        shapeCastOp.getResultVectorType().getNumElements() == 1) {
+      rewriter.replaceOp(shapeCastOp, adaptor.getSource());
+      return success();
+    }
+
+    // Lowering for size-n vectors when n > 1 hasn't been implemented.
+    return failure();
+  }
+};
+
 struct VectorBitcastConvert final
     : public OpConversionPattern<vector::BitCastOp> {
   using OpConversionPattern::OpConversionPattern;
@@ -551,15 +574,15 @@
 
 void mlir::populateVectorToSPIRVPatterns(SPIRVTypeConverter &typeConverter,
                                          RewritePatternSet &patterns) {
-  patterns.add<
-      VectorBitcastConvert, VectorBroadcastConvert,
-      VectorExtractElementOpConvert, VectorExtractOpConvert,
-      VectorExtractStridedSliceOpConvert, VectorFmaOpConvert<spirv::GLFmaOp>,
-      VectorFmaOpConvert<spirv::CLFmaOp>, VectorInsertElementOpConvert,
-      VectorInsertOpConvert, VectorReductionPattern<GL_MAX_MIN_OPS>,
-      VectorReductionPattern<CL_MAX_MIN_OPS>, VectorInsertStridedSliceOpConvert,
-      VectorShuffleOpConvert, VectorSplatPattern>(typeConverter,
-                                                  patterns.getContext());
+  patterns.add<VectorBitcastConvert, VectorBroadcastConvert,
+               VectorExtractElementOpConvert, VectorExtractOpConvert,
+               VectorExtractStridedSliceOpConvert,
+               VectorFmaOpConvert<spirv::GLFmaOp>,
+               VectorFmaOpConvert<spirv::CLFmaOp>, VectorInsertElementOpConvert,
+               VectorInsertOpConvert, VectorReductionPattern<GL_MAX_MIN_OPS>,
+               VectorReductionPattern<CL_MAX_MIN_OPS>, VectorShapeCast,
+               VectorInsertStridedSliceOpConvert, VectorShuffleOpConvert,
+               VectorSplatPattern>(typeConverter, patterns.getContext());
 }
 
 void mlir::populateVectorReductionToSPIRVDotProductPatterns(
diff --git a/mlir/test/Conversion/VectorToSPIRV/vector-to-spirv.mlir b/mlir/test/Conversion/VectorToSPIRV/vector-to-spirv.mlir
--- a/mlir/test/Conversion/VectorToSPIRV/vector-to-spirv.mlir
+++ b/mlir/test/Conversion/VectorToSPIRV/vector-to-spirv.mlir
@@ -568,3 +568,25 @@
   %reduce = vector.reduction <minui>, %v, %s : vector<3xi32> into i32
   return %reduce : i32
 }
+
+// -----
+
+// CHECK-LABEL: @shape_cast_same_type
+//  CHECK-SAME: (%[[ARG0:.*]]: vector<2xf32>)
+//       CHECK:   return %[[ARG0]]
+func.func @shape_cast_same_type(%arg0 : vector<2xf32>) -> vector<2xf32> {
+  %1 = vector.shape_cast %arg0 : vector<2xf32> to vector<2xf32>
+  return %arg0 : vector<2xf32>
+}
+
+// -----
+
+// CHECK-LABEL: @shape_cast_size1_vector
+//  CHECK-SAME: (%[[ARG0:.*]]: vector<f32>)
+//       CHECK:   %[[R0:.+]] = builtin.unrealized_conversion_cast %[[ARG0]] : vector<f32> to f32
+//       CHECK:   %[[R1:.+]] = builtin.unrealized_conversion_cast %[[R0]] : f32 to vector<1xf32>
+//       CHECK:   return %[[R1]]
+func.func @shape_cast_size1_vector(%arg0 : vector<f32>) -> vector<1xf32> {
+  %1 = vector.shape_cast %arg0 : vector<f32> to vector<1xf32>
+  return %1 : vector<1xf32>
+}