diff --git a/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp b/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
--- a/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
+++ b/mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
@@ -165,6 +165,17 @@
   return optionallyTruncateOrExtend(loc, broadcasted, dstType, rewriter);
 }
 
+/// Converts SPIR-V struct with no offset to packed LLVM struct.
+static Type convertStructTypePacked(spirv::StructType type,
+                                    LLVMTypeConverter &converter) {
+  auto elementsVector = llvm::to_vector<8>(
+      llvm::map_range(type.getElementTypes(), [&](Type elementType) {
+        return converter.convertType(elementType).cast<LLVM::LLVMType>();
+      }));
+  return LLVM::LLVMType::getStructTy(converter.getDialect(), elementsVector,
+                                     /*isPacked=*/true);
+}
+
 //===----------------------------------------------------------------------===//
 // Type conversion
 //===----------------------------------------------------------------------===//
@@ -202,6 +213,17 @@
   return LLVM::LLVMType::getArrayTy(elementType, 0);
 }
 
+/// Converts SPIR-V struct to LLVM struct. There is no support of structs with
+/// member decorations or with offset.
+static Optional<Type> convertStructType(spirv::StructType type,
+                                        LLVMTypeConverter &converter) {
+  SmallVector<spirv::StructType::MemberDecorationInfo, 4> memberDecorations;
+  type.getMemberDecorations(memberDecorations);
+  if (type.hasOffset() || !memberDecorations.empty())
+    return llvm::None;
+  return convertStructTypePacked(type, converter);
+}
+
 //===----------------------------------------------------------------------===//
 // Operation conversion
 //===----------------------------------------------------------------------===//
@@ -711,6 +733,9 @@
   typeConverter.addConversion([&](spirv::RuntimeArrayType type) {
     return convertRuntimeArrayType(type, typeConverter);
   });
+  typeConverter.addConversion([&](spirv::StructType type) {
+    return convertStructType(type, typeConverter);
+  });
 }
 
 void mlir::populateSPIRVToLLVMConversionPatterns(
diff --git a/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.invalid.mlir b/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.invalid.mlir
--- a/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.invalid.mlir
+++ b/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.invalid.mlir
@@ -4,3 +4,24 @@
 spv.func @array_with_stride(%arg: !spv.array<4 x f32, stride=4>) -> () "None" {
   spv.Return
 }
+
+// -----
+
+// expected-error@+1 {{failed to legalize operation 'spv.func' that was explicitly marked illegal}}
+spv.func @struct_with_offset1(%arg: !spv.struct<i32[0], i32[4]>) -> () "None" {
+  spv.Return
+}
+
+// -----
+
+// expected-error@+1 {{failed to legalize operation 'spv.func' that was explicitly marked illegal}}
+spv.func @struct_with_offset2(%arg: !spv.struct<i32[0], i32[8]>) -> () "None" {
+  spv.Return
+}
+
+// -----
+
+// expected-error@+1 {{failed to legalize operation 'spv.func' that was explicitly marked illegal}}
+spv.func @struct_with_decorations(%arg: !spv.struct<f32 [RelaxedPrecision]>) -> () "None" {
+  spv.Return
+}
diff --git a/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.mlir b/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.mlir
--- a/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.mlir
+++ b/mlir/test/Conversion/SPIRVToLLVM/spirv-types-to-llvm.mlir
@@ -26,3 +26,13 @@
 
 // CHECK-LABEL: @runtime_array_scalar(!llvm<"[0 x float]">)
 func @runtime_array_scalar(!spv.rtarray<f32>) -> ()
+
+//===----------------------------------------------------------------------===//
+// Struct type
+//===----------------------------------------------------------------------===//
+
+// CHECK-LABEL: @struct(!llvm<"<{ double }>">)
+func @struct(!spv.struct<f64>) -> ()
+
+// CHECK-LABEL: @struct_nested(!llvm<"<{ i32, <{ i64, i32 }> }>">)
+func @struct_nested(!spv.struct<i32, !spv.struct<i64, i32>>)