Index: llvm/utils/gn/secondary/llvm/lib/AsmParser/BUILD.gn
===================================================================
--- /dev/null
+++ llvm/utils/gn/secondary/llvm/lib/AsmParser/BUILD.gn
@@ -0,0 +1,13 @@
+static_library("AsmParser") {
+  output_name = "LLVMAsmParser"
+  deps = [
+    "//llvm/lib/BinaryFormat",
+    "//llvm/lib/IR",
+    "//llvm/lib/Support",
+  ]
+  sources = [
+    "LLLexer.cpp",
+    "LLParser.cpp",
+    "Parser.cpp",
+  ]
+}
Index: llvm/utils/gn/secondary/llvm/lib/CodeGen/MIRParser/BUILD.gn
===================================================================
--- /dev/null
+++ llvm/utils/gn/secondary/llvm/lib/CodeGen/MIRParser/BUILD.gn
@@ -0,0 +1,17 @@
+static_library("MIRParser") {
+  output_name = "LLVMMIRParser"
+  deps = [
+    "//llvm/lib/AsmParser",
+    "//llvm/lib/BinaryFormat",
+    "//llvm/lib/CodeGen",
+    "//llvm/lib/IR",
+    "//llvm/lib/MC",
+    "//llvm/lib/Support",
+    "//llvm/lib/Target",
+  ]
+  sources = [
+    "MILexer.cpp",
+    "MIParser.cpp",
+    "MIRParser.cpp",
+  ]
+}
Index: llvm/utils/gn/secondary/llvm/lib/IRReader/BUILD.gn
===================================================================
--- /dev/null
+++ llvm/utils/gn/secondary/llvm/lib/IRReader/BUILD.gn
@@ -0,0 +1,12 @@
+static_library("IRReader") {
+  output_name = "LLVMIRReader"
+  deps = [
+    "//llvm/lib/AsmParser",
+    "//llvm/lib/Bitcode/Reader",
+    "//llvm/lib/IR",
+    "//llvm/lib/Support",
+  ]
+  sources = [
+    "IRReader.cpp",
+  ]
+}
Index: llvm/utils/gn/secondary/llvm/lib/MC/MCDisassembler/BUILD.gn
===================================================================
--- /dev/null
+++ llvm/utils/gn/secondary/llvm/lib/MC/MCDisassembler/BUILD.gn
@@ -0,0 +1,14 @@
+static_library("MCDisassembler") {
+  output_name = "LLVMMCDisassembler"
+  deps = [
+    "//llvm/lib/MC",
+    "//llvm/lib/Support",
+  ]
+  sources = [
+    "Disassembler.cpp",
+    "MCDisassembler.cpp",
+    "MCExternalSymbolizer.cpp",
+    "MCRelocationInfo.cpp",
+    "MCSymbolizer.cpp",
+  ]
+}
Index: llvm/utils/gn/secondary/llvm/lib/Transforms/Vectorize/BUILD.gn
===================================================================
--- /dev/null
+++ llvm/utils/gn/secondary/llvm/lib/Transforms/Vectorize/BUILD.gn
@@ -0,0 +1,21 @@
+static_library("Vectorize") {
+  output_name = "LLVMVectorize"
+  deps = [
+    "//llvm/lib/Analysis",
+    "//llvm/lib/IR",
+    "//llvm/lib/Support",
+    "//llvm/lib/Transforms/Utils",
+  ]
+  sources = [
+    "LoadStoreVectorizer.cpp",
+    "LoopVectorizationLegality.cpp",
+    "LoopVectorize.cpp",
+    "SLPVectorizer.cpp",
+    "VPlan.cpp",
+    "VPlanHCFGBuilder.cpp",
+    "VPlanHCFGTransforms.cpp",
+    "VPlanSLP.cpp",
+    "VPlanVerifier.cpp",
+    "Vectorize.cpp",
+  ]
+}