* gcc.dg/c11-complex-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204732 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 46 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2d724f73207..df1ee9a4665 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2013-11-13  Joseph Myers  <joseph@codesourcery.com>
 
+	* gcc.dg/c11-complex-1.c: New test.
+
+2013-11-13  Joseph Myers  <joseph@codesourcery.com>
+
 	* gcc.dg/atomic/stdatomic-vm.c, gcc.dg/auto-type-1.c,
 	gcc.dg/auto-type-2.c: New tests.
 
diff --git a/gcc/testsuite/gcc.dg/c11-complex-1.c b/gcc/testsuite/gcc.dg/c11-complex-1.c
new file mode 100644
index 00000000000..e2d3c460f40
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/c11-complex-1.c
@@ -0,0 +1,42 @@
+/* Test complex divide does not have the bug identified in N1496.  */
+/* { dg-do run } */
+/* { dg-options "-std=c11 -pedantic-errors" } */
+
+extern void abort (void);
+extern void exit (int);
+
+#define CMPLX(x, y) __builtin_complex ((double) (x), (double) (y))
+#define CMPLXF(x, y) __builtin_complex ((float) (x), (float) (y))
+#define CMPLXL(x, y) __builtin_complex ((long double) (x), (long double) (y))
+#define NAN __builtin_nanf ("")
+#define isnan(x) __builtin_isnan (x)
+
+volatile _Complex float num_f = CMPLXF (1, 1);
+volatile _Complex float den_f = CMPLXF (0, NAN);
+volatile _Complex float res_f, cres_f = CMPLXF (1, 1) / CMPLXF (0, NAN);
+
+volatile _Complex double num_d = CMPLX (1, 1);
+volatile _Complex double den_d = CMPLX (0, NAN);
+volatile _Complex double res_d, cres_d = CMPLX (1, 1) / CMPLX (0, NAN);
+
+volatile _Complex long double num_ld = CMPLXL (1, 1);
+volatile _Complex long double den_ld = CMPLXL (0, NAN);
+volatile _Complex long double res_ld, cres_ld = CMPLXL (1, 1) / CMPLXL (0, NAN);
+
+int
+main (void)
+{
+  res_f = num_f / den_f;
+  if (!isnan (__real__ res_f) || !isnan (__imag__ res_f)
+      || !isnan (__real__ cres_f) || !isnan (__imag__ cres_f))
+    abort ();
+  res_d = num_d / den_d;
+  if (!isnan (__real__ res_d) || !isnan (__imag__ res_d)
+      || !isnan (__real__ cres_d) || !isnan (__imag__ cres_d))
+    abort ();
+  res_ld = num_ld / den_ld;
+  if (!isnan (__real__ res_ld) || !isnan (__imag__ res_ld)
+      || !isnan (__real__ cres_ld) || !isnan (__imag__ cres_ld))
+    abort ();
+  exit (0);
+}