1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/graphite/pr42221.c b/gcc/testsuite/gcc.dg/graphite/pr42221.c
new file mode 100644
index 000000000..da8daa1e2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/pr42221.c
@@ -0,0 +1,24 @@
+/* { dg-options "-Os -fgraphite-identity" } */
+
+static void b2w(unsigned int *out, const unsigned char *in, unsigned int len)
+{
+  const unsigned char *bpend = in + len;
+  for (; in != bpend; in += 4, ++out)
+  {
+    *out = (unsigned int) (in[0] ) |
+          (unsigned int) (in[3] << 24);
+  }
+}
+static void md4step(unsigned int state[4], const unsigned char *data)
+{
+  unsigned int A, X[16];
+  b2w(X, data, 64);
+  state[0] += A;
+}
+void md4sum(void)
+{
+  unsigned char final[128];
+  unsigned int state[4];
+  md4step(state, final);
+  md4step(state, final + 64);
+}