1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr32044.c b/gcc/testsuite/gcc.dg/tree-ssa/pr32044.c
new file mode 100644
index 000000000..58a62662b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr32044.c
@@ -0,0 +1,54 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+int foo (int n)
+{
+  while (n >= 45)
+    n -= 45;
+
+  return n;
+}
+
+int bar (int n)
+{
+  while (n >= 64)
+    n -= 64;
+
+  return n;
+}
+
+int bla (int n)
+{
+  int i = 0;
+
+  while (n >= 45)
+    {
+      i++;
+      n -= 45;
+    }
+
+  return i;
+}
+
+int baz (int n)
+{
+  int i = 0;
+
+  while (n >= 64)
+    {
+      i++;
+      n -= 64;
+    }
+
+  return i;
+}
+
+/* The loops computing division/modulo by 64 should be eliminated */
+/* { dg-final { scan-tree-dump-times "if" 6 "optimized" } } */
+
+/* There should be no division/modulo in the final dump (division and modulo
+   by 64 are done using bit operations).  */
+/* { dg-final { scan-tree-dump-times "/" 0 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "%" 0 "optimized" } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */