1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/aarch64/cmn-neg2.c b/gcc-4.9/gcc/testsuite/gcc.target/aarch64/cmn-neg2.c
new file mode 100644
index 000000000..ca45a5343
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/aarch64/cmn-neg2.c
@@ -0,0 +1,34 @@
+/* { dg-do run } */
+/* { dg-options "-O2 --save-temps" } */
+
+extern void abort (void);
+
+/* It's unsafe to use CMN in these comparisons.  */
+
+void __attribute__ ((noinline))
+foo_s32 (int a, int b)
+{
+  if (a < -b)
+    abort ();
+}
+
+void __attribute__ ((noinline))
+foo_s64 (unsigned long long a, unsigned long long b)
+{
+  if (a > -b)
+    abort ();
+}
+
+
+int
+main (void)
+{
+  int a = 30;
+  int b = 42;
+  foo_s32 (a, b);
+  foo_s64 (a, b);
+  return 0;
+}
+/* { dg-final { scan-assembler-not "cmn\t" } } */
+
+/* { dg-final { cleanup-saved-temps } } */