1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-even-1.c b/gcc/testsuite/gcc.dg/fold-even-1.c
new file mode 100644
index 000000000..8e6539c92
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fold-even-1.c
@@ -0,0 +1,33 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-original" } */
+int test1(int a)
+{
+  return !(a & 1);
+}
+
+int test2(int b)
+{
+  return (b & 1) == 0;
+}
+
+int test3(int c)
+{
+  return (c & 1) ^ 1;
+}
+
+int test4(int d)
+{
+  return (d ^ 1) & 1;
+}
+
+int test5(int e)
+{
+  return ~e & 1;
+}
+
+/* { dg-final { scan-tree-dump-times "\\(a \& 1\\) == 0" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "\\(b \& 1\\) == 0" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "\\(c \& 1\\) == 0" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "\\(d \& 1\\) == 0" 1 "original" } } */
+/* { dg-final { scan-tree-dump-times "\\(e \& 1\\) == 0" 1 "original" } } */
+/* { dg-final { cleanup-tree-dump "original" } } */