1 files changed, 61 insertions, 0 deletions
diff --git a/SingleSource/Regression/C/gcc-c-torture/execute/ieee/mzero2.c b/SingleSource/Regression/C/gcc-c-torture/execute/ieee/mzero2.c
new file mode 100644
index 00000000..00c8efe9
--- /dev/null
+++ b/SingleSource/Regression/C/gcc-c-torture/execute/ieee/mzero2.c
@@ -0,0 +1,61 @@
+/* Test IEEE +0/-0 rules */
+
+static double pzero = +0.0;
+static double nzero = -0.0;
+static double pinf  = +1.0 / 0.0;
+static double ninf  = -1.0 / 0.0;
+static double nan   =  0.0 / 0.0;
+
+void
+expect (double value, double expected)
+{
+  if (expected != expected)	/* expected value is Not a number */
+    {
+      if (value == value)	/* actual value is a number */
+	abort ();
+    }
+
+  else if (value != value)
+    abort ();			/* actual value is a NaN */
+
+  else if (memcmp ((void *)&value, (void *)&expected, sizeof (double)) != 0)
+    abort ();			/* values don't match */
+}
+
+main ()
+{
+  expect (pzero + pzero, pzero);
+  expect (pzero + nzero, pzero);
+  expect (nzero + pzero, pzero);
+  expect (nzero + nzero, nzero);
+
+  expect (pzero - pzero, pzero);
+  expect (pzero - nzero, pzero);
+  expect (nzero - pzero, nzero);
+  expect (nzero - nzero, pzero);
+
+  expect (pzero * pzero, pzero);
+  expect (pzero * nzero, nzero);
+  expect (nzero * pzero, nzero);
+  expect (nzero * nzero, pzero);
+
+  expect (+1.00 * pzero, pzero);
+  expect (-1.00 * pzero, nzero);
+  expect (+1.00 * nzero, nzero);
+  expect (-1.00 * nzero, pzero);
+
+#ifndef _TMS320C6700
+  /* C6X floating point division is implemented using reciprocals.  */
+  expect (pzero / pzero, nan);
+  expect (pzero / nzero, nan);
+  expect (nzero / pzero, nan);
+  expect (nzero / nzero, nan);
+
+  expect (+1.00 / pzero, pinf);
+  expect (-1.00 / pzero, ninf);
+  expect (+1.00 / nzero, ninf);
+  expect (-1.00 / nzero, pinf);
+#endif
+
+  exit (0);
+}