Reland "[gn build] Port d3fb41d (llvm-cgdata)"

This reverts commit 6476a1d.
d3fb41d relanded in 9bb5556.

...amended to incorporate changes from the reland.

Author: nico

llvm/utils/gn/secondary/llvm/lib/CodeGenData/BUILD.gn renamed to llvm/utils/gn/secondary/llvm/lib/CGData/BUILD.gn

@@ -1,10 +1,13 @@
-static_library("CodeGenData") {
-  output_name = "LLVMCodeGenData"
+static_library("CGData") {
+  output_name = "LLVMCGData"
   deps = [
     "//llvm/lib/IR",
     "//llvm/lib/Support",
   ]
   sources = [
+    "CodeGenData.cpp",
+    "CodeGenDataReader.cpp",
+    "CodeGenDataWriter.cpp",
     "OutlinedHashTree.cpp",
     "OutlinedHashTreeRecord.cpp",
   ]

llvm/utils/gn/secondary/llvm/test/BUILD.gn

@@ -265,6 +265,7 @@ group("test") {
     "//llvm/tools/llvm-c-test",
     "//llvm/tools/llvm-cat",
     "//llvm/tools/llvm-cfi-verify",
+    "//llvm/tools/llvm-cgdata",
     "//llvm/tools/llvm-cov",
     "//llvm/tools/llvm-ctxprof-util",
     "//llvm/tools/llvm-cvtres",

llvm/utils/gn/secondary/llvm/tools/llvm-cgdata/BUILD.gn

@@ -0,0 +1,12 @@
+import("//llvm/utils/gn/build/driver_executable.gni")
+
+driver_executable("llvm-cgdata") {
+  deps = [
+    "//llvm/lib/CGData",
+    "//llvm/lib/CodeGen",
+    "//llvm/lib/IR",
+    "//llvm/lib/Object",
+    "//llvm/lib/Support",
+  ]
+  sources = [ "llvm-cgdata.cpp" ]
+}

llvm/utils/gn/secondary/llvm/unittests/BUILD.gn

@@ -8,9 +8,9 @@ group("unittests") {
     "BinaryFormat:BinaryFormatTests",
     "Bitcode:BitcodeTests",
     "Bitstream:BitstreamTests",
+    "CGData:CodeGenDataTests",
     "CodeGen:CodeGenTests",
     "CodeGen/GlobalISel:GlobalISelTests",
-    "CodeGenData:CodeGenDataTests",
     "DWARFLinkerParallel:DWARFLinkerParallelTests",
     "DebugInfo/BTF:DebugInfoBTFTests",
     "DebugInfo/CodeView:DebugInfoCodeViewTests",

llvm/utils/gn/secondary/llvm/unittests/CodeGenData/BUILD.gn renamed to llvm/utils/gn/secondary/llvm/unittests/CGData/BUILD.gn

@@ -2,8 +2,8 @@ import("//third-party/unittest/unittest.gni")
 
 unittest("CodeGenDataTests") {
   deps = [
+    "//llvm/lib/CGData",
     "//llvm/lib/CodeGen",
-    "//llvm/lib/CodeGenData",
     "//llvm/lib/IR",
     "//llvm/lib/MC",
     "//llvm/lib/Support",