1 files changed, 92 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/loop-versioning-1.c b/gcc/testsuite/gcc.dg/loop-versioning-1.c
new file mode 100644
index 0000000..e61ff7a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/loop-versioning-1.c
@@ -0,0 +1,92 @@
+/* { dg-options "-O3 -fdump-tree-lversion-details" } */
+
+/* The simplest IV case.  */
+
+void
+f1 (double *x, int stepx, int n)
+{
+  for (int i = 0; i < n; ++i)
+    x[stepx * i] = 100;
+}
+
+void
+f2 (double *x, int stepx, int limit)
+{
+  for (int i = 0; i < limit; i += stepx)
+    x[i] = 100;
+}
+
+void
+f3 (double *x, int stepx, int limit)
+{
+  for (double *y = x; y < x + limit; y += stepx)
+    *y = 100;
+}
+
+void
+f4 (double *x, int stepx, unsigned int n)
+{
+  for (unsigned int i = 0; i < n; ++i)
+    x[stepx * i] = 100;
+}
+
+void
+f5 (double *x, int stepx, unsigned int limit)
+{
+  for (unsigned int i = 0; i < limit; i += stepx)
+    x[i] = 100;
+}
+
+void
+f6 (double *x, int stepx, unsigned int limit)
+{
+  for (double *y = x; y < x + limit; y += stepx)
+    *y = 100;
+}
+
+double x[10000];
+
+void
+g1 (int stepx, int n)
+{
+  for (int i = 0; i < n; ++i)
+    x[stepx * i] = 100;
+}
+
+void
+g2 (int stepx, int limit)
+{
+  for (int i = 0; i < limit; i += stepx)
+    x[i] = 100;
+}
+
+void
+g3 (int stepx, int limit)
+{
+  for (double *y = x; y < x + limit; y += stepx)
+    *y = 100;
+}
+
+void
+g4 (int stepx, unsigned int n)
+{
+  for (unsigned int i = 0; i < n; ++i)
+    x[stepx * i] = 100;
+}
+
+void
+g5 (int stepx, unsigned int limit)
+{
+  for (unsigned int i = 0; i < limit; i += stepx)
+    x[i] = 100;
+}
+
+void
+g6 (int stepx, unsigned int limit)
+{
+  for (double *y = x; y < x + limit; y += stepx)
+    *y = 100;
+}
+
+/* { dg-final { scan-tree-dump-times {want to version containing loop} 12 "lversion" } } */
+/* { dg-final { scan-tree-dump-times {versioned this loop} 12 "lversion" } } */