diff --git a/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td b/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td
--- a/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td
@@ -1001,6 +1001,7 @@
     StrAttr:$sym_name,
     Linkage:$linkage,
     UnitAttr:$dso_local,
+    UnitAttr:$thr_local,
     OptionalAttr<AnyAttr>:$value,
     OptionalAttr<I64Attr>:$alignment,
     DefaultValuedAttr<Confined<I32Attr, [IntNonNegative]>, "0">:$addr_space,
diff --git a/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp b/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
--- a/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
+++ b/mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
@@ -661,7 +661,10 @@
 
     auto *var = new llvm::GlobalVariable(
         *llvmModule, type, op.getConstant(), linkage, cst, op.getSymName(),
-        /*InsertBefore=*/nullptr, llvm::GlobalValue::NotThreadLocal, addrSpace);
+        /*InsertBefore=*/nullptr,
+        op.getThrLocal() ? llvm::GlobalValue::GeneralDynamicTLSModel
+                         : llvm::GlobalValue::NotThreadLocal,
+        addrSpace);
 
     if (op.getUnnamedAddr().hasValue())
       var->setUnnamedAddr(convertUnnamedAddrToLLVM(*op.getUnnamedAddr()));
diff --git a/mlir/test/Dialect/LLVMIR/global.mlir b/mlir/test/Dialect/LLVMIR/global.mlir
--- a/mlir/test/Dialect/LLVMIR/global.mlir
+++ b/mlir/test/Dialect/LLVMIR/global.mlir
@@ -57,6 +57,10 @@
 llvm.mlir.global linkonce_odr @linkonce_odr() : i64
 // CHECK: llvm.mlir.global weak_odr
 llvm.mlir.global weak_odr @weak_odr() : i64
+// CHECK: llvm.mlir.global external @has_thr_local(42 : i64) {thr_local} : i64
+llvm.mlir.global external @has_thr_local(42 : i64) {thr_local} : i64
+// CHECK: llvm.mlir.global external @has_dso_local(42 : i64) {dso_local} : i64
+llvm.mlir.global external @has_dso_local(42 : i64) {dso_local} : i64
 
 // CHECK-LABEL: references
 func @references() {
diff --git a/mlir/test/Target/LLVMIR/llvmir.mlir b/mlir/test/Target/LLVMIR/llvmir.mlir
--- a/mlir/test/Target/LLVMIR/llvmir.mlir
+++ b/mlir/test/Target/LLVMIR/llvmir.mlir
@@ -128,6 +128,13 @@
 llvm.mlir.global @has_dso_local(42 : i64) {dso_local} : i64
 // CHECK: @has_dso_local = dso_local global i64 42
 
+//
+// thr_local attribute.
+//
+
+llvm.mlir.global @has_thr_local(42 : i64) {thr_local} : i64
+// CHECK: @has_thr_local = thread_local global i64 42
+
 //
 // Section attribute.
 //