obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/torture/complex-sign-mixed-sub.c b/gcc/testsuite/c-c++-common/torture/complex-sign-mixed-sub.c
new file mode 100644
index 000000000..d9e083cfd
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/torture/complex-sign-mixed-sub.c
@@ -0,0 +1,55 @@
+/* Test complex arithmetic with signed zeros.  Mixed real/complex
+   subtraction.  */
+/* { dg-do run } */
+/* { dg-options "-std=gnu99" { target c } } */
+
+#include "complex-sign.h"
+
+#define CHECK_SUB(TYPE, COPY, ZERO, ZEROI)				\
+  do {									\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, +, +, +, -);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, +, -, +, +);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, -, +, +, -);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, +, -, -, +, +);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, +, +, -, -);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, +, -, -, +);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, -, +, +, -);		\
+    CHECK_ARITH_RC (TYPE, COPY, ZERO, ZEROI, -, -, -, -, +, +);		\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, +, +, ZERO, +, +);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, +, -, ZERO, +, +);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, -, +, ZERO, +, -);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, +, -, -, ZERO, +, -);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, +, +, ZERO, -, +);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, +, -, ZERO, +, +);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, -, +, ZERO, -, -);	\
+    CHECK_ARITH_CR (TYPE, COPY, ZERO, ZEROI, -, -, -, -, ZERO, +, -);	\
+  } while (0)
+
+void
+check_sub_float (void)
+{
+#ifndef __SPU__
+  CHECK_SUB (float, __builtin_copysignf, 0.0f, 0.0if);
+#endif
+}
+
+void
+check_sub_double (void)
+{
+  CHECK_SUB (double, __builtin_copysign, 0.0, 0.0i);
+}
+
+void
+check_sub_long_double (void)
+{
+  CHECK_SUB (long double, __builtin_copysignl, 0.0l, 0.0il);
+}
+
+int
+main (void)
+{
+  check_sub_float ();
+  check_sub_double ();
+  check_sub_long_double ();
+  exit (0);
+}