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

	PR tree-optimization/106970

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-ssa/pr106970.c: New test.

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr106970.c b/gcc/testsuite/gcc.dg/tree-ssa/pr106970.c
new file mode 100644 (file)
index 0000000..cda9bd4
--- /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 ();
+}