1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/powerpc/pr115355.c b/gcc/testsuite/gcc.target/powerpc/pr115355.c
new file mode 100644
index 0000000..8955126
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr115355.c
@@ -0,0 +1,37 @@
+/* { dg-do run } */
+/* { dg-require-effective-target p9vector_hw } */
+/* Force vectorization with -fno-vect-cost-model to have vector unpack
+   which exposes the issue in PR115355.  */
+/* { dg-options "-O2 -mdejagnu-cpu=power9 -fno-vect-cost-model" } */
+
+/* Verify it runs successfully.  */
+
+__attribute__((noipa))
+void setToIdentityGOOD(unsigned long long *mVec, unsigned int mLen)
+{
+  #pragma GCC novector
+  for (unsigned int i = 0; i < mLen; i++)
+    mVec[i] = i;
+}
+
+__attribute__((noipa))
+void setToIdentityBAD(unsigned long long *mVec, unsigned int mLen)
+{
+  for (unsigned int i = 0; i < mLen; i++)
+    mVec[i] = i;
+}
+
+unsigned long long vec1[100];
+unsigned long long vec2[100];
+
+int main()
+{
+  unsigned int l = 29;
+  setToIdentityGOOD (vec1, 29);
+  setToIdentityBAD (vec2, 29);
+
+  if (__builtin_memcmp (vec1, vec2, l * sizeof (vec1[0])) != 0)
+    __builtin_abort ();
+
+  return 0;
+}