diff --git a/WORKSPACE b/WORKSPACE
index dc92a50..4a036fc 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -15,9 +15,9 @@
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-LLVM_COMMIT = "7f7b0dc4e15fac5f91f8f6dcc7f91c9025f41ae0"
+LLVM_COMMIT = "bcbdeafa9cb3469a7bf367c17f32d913076a4d55"
 
-LLVM_SHA256 = "75ffa7e33d60354629934af3bf527d52bf29881166486695cf89b1ec9df45061"
+LLVM_SHA256 = "934072cb0c757cb3852f330a8d54807506e1dc45fe2bed53e69fb6923b2d8d83"
 
 LLVM_BAZEL_TAG = "llvm-project-{commit}".format(commit = LLVM_COMMIT)
 
diff --git a/build_tools/llvm_version.txt b/build_tools/llvm_version.txt
index ac1544e..4e37009 100644
--- a/build_tools/llvm_version.txt
+++ b/build_tools/llvm_version.txt
@@ -1,2 +1,2 @@
-7f7b0dc4e15fac5f91f8f6dcc7f91c9025f41ae0
+bcbdeafa9cb3469a7bf367c17f32d913076a4d55
 
diff --git a/include/mlir-hlo/Dialect/mhlo/IR/hlo_ops_base_structs.td b/include/mlir-hlo/Dialect/mhlo/IR/hlo_ops_base_structs.td
index d25eb51..d512a7c 100644
--- a/include/mlir-hlo/Dialect/mhlo/IR/hlo_ops_base_structs.td
+++ b/include/mlir-hlo/Dialect/mhlo/IR/hlo_ops_base_structs.td
@@ -26,7 +26,7 @@ def DotDimensionNumbers : StructAttr<"DotDimensionNumbers", HLO_Dialect, [
                 StructFieldAttr<"lhs_contracting_dimensions", I64ElementsAttr>,
                 StructFieldAttr<"rhs_contracting_dimensions", I64ElementsAttr>
   ]> {
-  let description = "Structure of dimension information for dot product";
+  let summary = "Structure of dimension information for dot product";
 }
 
 def ScatterDimensionNumbers : StructAttr<
@@ -35,7 +35,7 @@ def ScatterDimensionNumbers : StructAttr<
       StructFieldAttr<"inserted_window_dims", I64ElementsAttr>,
       StructFieldAttr<"scatter_dims_to_operand_dims", I64ElementsAttr>,
       StructFieldAttr<"index_vector_dim", I64Attr>]> {
-  let description = "Structure of dimension information for scatter";
+  let summary = "Structure of dimension information for scatter";
 }
 
 def ConvDimensionNumbers : StructAttr<"ConvDimensionNumbers", HLO_Dialect, [
@@ -49,7 +49,7 @@ def ConvDimensionNumbers : StructAttr<"ConvDimensionNumbers", HLO_Dialect, [
   StructFieldAttr<"output_feature_dimension", I64Attr>,
   StructFieldAttr<"output_spatial_dimensions", I64ElementsAttr>] > {
 
-  let description = "Structure of dimension information for conv op";
+  let summary = "Structure of dimension information for conv op";
 }
 
 def GatherDimensionNumbers : StructAttr<"GatherDimensionNumbers", HLO_Dialect,
@@ -57,7 +57,7 @@ def GatherDimensionNumbers : StructAttr<"GatherDimensionNumbers", HLO_Dialect,
       StructFieldAttr<"collapsed_slice_dims", I64ElementsAttr>,
       StructFieldAttr<"start_index_map", I64ElementsAttr>,
       StructFieldAttr<"index_vector_dim", I64Attr>]> {
-  let description = "Structure of dimension information for gather";
+  let summary = "Structure of dimension information for gather";
 }
 
 
@@ -67,7 +67,7 @@ def GatherDimensionNumbers : StructAttr<"GatherDimensionNumbers", HLO_Dialect,
 def ChannelHandle : StructAttr<"ChannelHandle", HLO_Dialect, [
                 StructFieldAttr<"handle", I64Attr>,
                 StructFieldAttr<"type", I64Attr>]> {
-  let description = "two 64-bit integers 'handle' and 'type'";
+  let summary = "two 64-bit integers 'handle' and 'type'";
 }
 
 #endif // HLO_OPS_BASE_STRUCTS
diff --git a/include/mlir-hlo/Dialect/mhlo/IR/lhlo_gpu_ops_structs.td b/include/mlir-hlo/Dialect/mhlo/IR/lhlo_gpu_ops_structs.td
index da7d179..963834b 100644
--- a/include/mlir-hlo/Dialect/mhlo/IR/lhlo_gpu_ops_structs.td
+++ b/include/mlir-hlo/Dialect/mhlo/IR/lhlo_gpu_ops_structs.td
@@ -32,7 +32,7 @@ def ConvolutionBackendConfigAttr : StructAttr<"ConvolutionBackendConfig",
    StructFieldAttr<"operand_0_layout", I64ArrayAttr>,
    StructFieldAttr<"operand_1_layout", I64ArrayAttr>,
    StructFieldAttr<"result_layout", I64ArrayAttr>]> {
-   let description = "GPU Convolution backend configuration";
+   let summary = "GPU Convolution backend configuration";
 }
 
 #endif // LHLO_GPU_OPS_STRUCTS