[COMMITTED] [PR106970] New test for PR that has already been fixed.

[Aldy Hernandez via Gcc-patches]

        PR tree-optimization/106970

gcc/testsuite/ChangeLog:

        * gcc.dg/tree-ssa/pr106970.c: New test.
---
 gcc/testsuite/gcc.dg/tree-ssa/pr106970.c | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/pr106970.c

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr106970.c 
b/gcc/testsuite/gcc.dg/tree-ssa/pr106970.c
new file mode 100644
index 00000000000..cda9bd46910
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr106970.c
@@ -0,0 +1,9 @@
+// { dg-do compile }
+// { dg-options "-O1 -fno-signed-zeros" }
+
+void
+foo (double x, double y)
+{
+  if (!x == !y * -1.0)
+    __builtin_trap ();
+}
-- 
2.37.1