--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utils/llvmgrep	Mon May 25 11:07:02 2020 +0900
@@ -0,0 +1,38 @@
+#!/bin/sh
+##===- utils/llvmgrep - Counts Lines Of Code -----------------*- Script -*-===##
+# 
+# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+# 
+##===----------------------------------------------------------------------===##
+#
+# This script searches your srcdir for an egrep style pattern. This can quickly
+# help you build a list of the places you need to modify when changing a header
+# or other "global" name. The only argument is the pattern you want to search
+# for. It should be quoted to escape shell interpretation of the pattern's
+# special characters.
+#
+# Note that the implementation is based on llvmdo. See that script for more
+# details.
+##===----------------------------------------------------------------------===##
+
+if test "$1" = "-topdir" ; then
+  TOPDIR="$2"
+  shift; shift;
+else
+  TOPDIR=`llvm-config --src-root`
+fi
+
+if test -d "$TOPDIR" ; then
+  cd $TOPDIR
+  case `uname -s` in
+    SunOS) grep_cmd="ggrep -H -n" ;;
+    Linux|Darwin) grep_cmd="egrep -H -n" ;;
+    *) grep_cmd="egrep -l -n" ;;
+  esac
+  ./utils/llvmdo -topdir "$TOPDIR" \
+    -dirs "include lib tools utils docs examples test unittests projects cmake" $grep_cmd "$*"
+else
+  echo "Can't find LLVM top directory"
+fi