--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/ifcvt-3.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,19 @@
+/* { dg-do compile { target { { aarch64*-*-* i?86-*-* x86_64-*-* } && lp64 } } } */
+/* { dg-options "-fdump-rtl-ce1 -O2 --param max-rtl-if-conversion-unpredictable-cost=100" } */
+
+typedef long long s64;
+
+int
+foo (s64 a, s64 b, s64 c)
+{
+ s64 d = a - b;
+
+  if (d == 0)
+    return a + c;
+  else
+    return b + d + c;
+}
+
+/* This test can be reduced to just return a + c;  */
+/* { dg-final { scan-rtl-dump "3 true changes made" "ce1" } } */
+/* { dg-final { scan-assembler-not "sub\.*\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+\.*" { target { aarch64*-*-* } } } } */