Add initial version of Polly

This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e
in the old git repository.

llvm-svn: 130476
diff --git a/polly/test/CodeGen/OpenMP/parallel_loop_simple.c b/polly/test/CodeGen/OpenMP/parallel_loop_simple.c
new file mode 100644
index 0000000..1c382fc
--- /dev/null
+++ b/polly/test/CodeGen/OpenMP/parallel_loop_simple.c
@@ -0,0 +1,15 @@
+#define M 1024
+#define N 1024
+#define K 1024
+
+float X[K];
+
+float parallel_loop_simple() {
+  int i, k;
+
+  for (i = 0; i < M; i++)
+    for (k = 0; k < K; k++)
+      X[k] += X[k];
+
+  return X[42];
+}