[llvm] r374395 - gn build: restore tablegen restat optimization after r373664

[Nico Weber via llvm-commits]

Author: nico
Date: Thu Oct 10 10:47:18 2019
New Revision: 374395

URL: http://llvm.org/viewvc/llvm-project?rev=374395&view=rev
Log:
gn build: restore tablegen restat optimization after r373664

Modified:
    llvm/trunk/utils/gn/secondary/llvm/utils/TableGen/tablegen.gni

Modified: llvm/trunk/utils/gn/secondary/llvm/utils/TableGen/tablegen.gni
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/gn/secondary/llvm/utils/TableGen/tablegen.gni?rev=374395&r1=374394&r2=374395&view=diff
==============================================================================
--- llvm/trunk/utils/gn/secondary/llvm/utils/TableGen/tablegen.gni (original)
+++ llvm/trunk/utils/gn/secondary/llvm/utils/TableGen/tablegen.gni Thu Oct 10 10:47:18 2019
@@ -66,6 +66,8 @@ template("tablegen") {
 
     args = [
              rebase_path(tblgen_executable, root_build_dir),
+             "--write-if-changed",
+
              "-I",
              rebase_path("//llvm/include", root_build_dir),