diff --git a/make-clang-snapshot.sh b/make-clang-snapshot.sh
new file mode 100755
index 0000000..8414d83
--- /dev/null
+++ b/make-clang-snapshot.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+DIRNAME=clang-$( date +%Y%m%d )
+URL=http://llvm.org/git/clang.git
+
+rm -rf $DIRNAME
+git clone $URL $DIRNAME
+cd $DIRNAME
+if [ -z "$1" ]; then
+    git log | head -1
+else
+    git checkout $1
+fi
+git log | head -1 | awk '{ print $2 }' > ../commitid
+rm -rf .git
+cd ..
+tar cf - $DIRNAME | xz -c9 > $DIRNAME.tar.xz
+rm -rf $DIRNAME
diff --git a/make-compiler-rt-snapshot.sh b/make-compiler-rt-snapshot.sh
new file mode 100755
index 0000000..0ae2a16
--- /dev/null
+++ b/make-compiler-rt-snapshot.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+DIRNAME=compiler-rt-$( date +%Y%m%d )
+URL=http://llvm.org/git/compiler-rt.git
+
+rm -rf $DIRNAME
+git clone $URL $DIRNAME
+cd $DIRNAME
+if [ -z "$1" ]; then
+    git log | head -1
+else
+    git checkout $1
+fi
+git log | head -1 | awk '{ print $2 }' > ../commitid
+rm -rf .git
+cd ..
+tar cf - $DIRNAME | xz -c9 > $DIRNAME.tar.xz
+rm -rf $DIRNAME
diff --git a/make-llvm-snapshot.sh b/make-llvm-snapshot.sh
new file mode 100755
index 0000000..308ca7b
--- /dev/null
+++ b/make-llvm-snapshot.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+DIRNAME=llvm-$( date +%Y%m%d )
+URL=http://llvm.org/git/llvm.git
+
+rm -rf $DIRNAME
+git clone $URL $DIRNAME
+cd $DIRNAME
+if [ -z "$1" ]; then
+    git log | head -1
+else
+    git checkout $1
+fi
+git log | head -1 | awk '{ print $2 }' > ../commitid
+rm -rf .git
+cd ..
+tar cf - $DIRNAME | xz -c9 > $DIRNAME.tar.xz
+rm -rf $DIRNAME