diff --git a/llvm/utils/gn/secondary/llvm/include/llvm/TargetParser/BUILD.gn b/llvm/utils/gn/secondary/llvm/include/llvm/TargetParser/BUILD.gn
new file mode 100644
index 00000000000000..0644daaa9daa72
--- /dev/null
+++ b/llvm/utils/gn/secondary/llvm/include/llvm/TargetParser/BUILD.gn
@@ -0,0 +1,11 @@
+import("//llvm/utils/TableGen/tablegen.gni")
+
+tablegen("RISCVTargetParserDef") {
+  visibility = [ ":gen" ]
+  args = [ "-gen-riscv-target-def" ]
+  td_file = "//llvm/lib/Target/RISCV/RISCV.td"
+}
+
+group("gen") {
+  deps = [ ":RISCVTargetParserDef" ]
+}
diff --git a/llvm/utils/gn/secondary/llvm/lib/TargetParser/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/TargetParser/BUILD.gn
index 4c58d1ec3e63bd..450706f683501e 100644
--- a/llvm/utils/gn/secondary/llvm/lib/TargetParser/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/TargetParser/BUILD.gn
@@ -1,6 +1,7 @@
 static_library("TargetParser") {
   output_name = "LLVMTargetParser"
   deps = [ "//llvm/lib/Support" ]
+  public_deps = [ "//llvm/include/llvm/TargetParser:gen" ]
   include_dirs = [
     "Unix",
     "Windows",
@@ -12,6 +13,7 @@ static_library("TargetParser") {
     "CSKYTargetParser.cpp",
     "Host.cpp",
     "LoongArchTargetParser.cpp",
+    "RISCVTargetParser.cpp",
     "TargetParser.cpp",
     "Triple.cpp",
     "X86TargetParser.cpp",
diff --git a/llvm/utils/gn/secondary/llvm/utils/TableGen/BUILD.gn b/llvm/utils/gn/secondary/llvm/utils/TableGen/BUILD.gn
index 69eee3c0d25bd9..b5c774f363109a 100644
--- a/llvm/utils/gn/secondary/llvm/utils/TableGen/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/utils/TableGen/BUILD.gn
@@ -45,6 +45,7 @@ executable("llvm-tblgen") {
     "OptRSTEmitter.cpp",
     "PredicateExpander.cpp",
     "PseudoLoweringEmitter.cpp",
+    "RISCVTargetDefEmitter.cpp",
     "RegisterBankEmitter.cpp",
     "RegisterInfoEmitter.cpp",
     "SDNodeProperties.cpp",