diff --git a/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-25a.c b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-25a.c
new file mode 100644
index 00000000000..faecac59ee7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-25a.c
@@ -0,0 +1,89 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+unsigned short test_bswap16(unsigned short x)
+{
+  if (x)
+    return __builtin_bswap16(x);
+  return 0;
+}
+
+unsigned int test_bswap32(unsigned int x)
+{
+  if (x)
+    return __builtin_bswap32(x);
+  return 0;
+}
+
+unsigned long long test_bswap64(unsigned long long x)
+{
+  if (x)
+    return __builtin_bswap64(x);
+  return 0;
+}
+
+int test_clrsb(int x)
+{
+  if (x)
+    return __builtin_clrsb(x);
+  return (__SIZEOF_INT__*8-1);
+}
+
+int test_clrsbl(long x)
+{
+  if (x)
+    return __builtin_clrsbl(x);
+  return (__SIZEOF_LONG__*8-1);
+}
+
+int test_clrsbll(long long x)
+{
+  if (x)
+    return __builtin_clrsbll(x);
+  return (__SIZEOF_LONG_LONG__*8-1);
+}
+
+int test_parity(int x)
+{
+  if (x)
+    return __builtin_parity(x);
+  return 0;
+}
+
+int test_parityl(long x)
+{
+  if (x)
+    return __builtin_parityl(x);
+  return 0;
+}
+
+int test_parityll(long long x)
+{
+  if (x)
+    return __builtin_parityll(x);
+  return 0;
+}
+
+int test_popcount(int x)
+{
+  if (x)
+    return __builtin_popcount(x);
+  return 0;
+}
+
+int test_popcountl(long x)
+{
+  if (x)
+    return __builtin_popcountl(x);
+  return 0;
+}
+
+int test_popcountll(long long x)
+{
+  if (x)
+    return __builtin_popcountll(x);
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-not "goto" "optimized" } } */
+