1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/nios2/cdx-sub.c b/gcc/testsuite/gcc.target/nios2/cdx-sub.c
new file mode 100644
index 00000000000..532a0f40e89
--- /dev/null
+++ b/gcc/testsuite/gcc.target/nios2/cdx-sub.c
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=r2 -mcdx" } */
+
+/* Check generation of R2 CDX sub.n, subi.n, and neg.n instructions.  */
+
+int f (int a, int b)
+{
+  return a - b;
+}
+
+int g (int a)
+{
+  return a - 32;
+}
+
+int h (int a)
+{
+  return -a;
+}
+
+/* { dg-final { scan-assembler "\tsub\\.n\t.*" } } */
+/* { dg-final { scan-assembler "\tsubi\\.n\t.*, 32" } } */
+/* { dg-final { scan-assembler "\tneg\\.n\t.*" } } */