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, 53 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/dfp/nan-2.c b/gcc/testsuite/c-c++-common/dfp/nan-2.c
new file mode 100644
index 000000000..ec9d18e10
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/dfp/nan-2.c
@@ -0,0 +1,53 @@
+/* N1150 4: Characteristics of decimal floating types (not explicit)
+   C99 5.2.4.2.2: Characteristics of floating types.
+   A few simple checks on arithmetic operations.  Based on nan-1.c with
+   the consideration of negative zero.  */
+
+#include "dfp-dbg.h"
+
+int main()
+{
+  _Decimal32 d32;
+  _Decimal64 d64;
+  _Decimal128 d128;
+
+  /* Verify that division by negative zero produces a negative infinity 
+     result.  */
+  d32 = 123.45f;
+  if (d32/-0.0df != -__builtin_infd32())
+    FAILURE
+  if (123.45df/-0.0df != -__builtin_infd32())
+    FAILURE
+  
+  d64 = 123.45f;
+  if (d64/-0.0dd != -__builtin_infd64())
+    FAILURE
+  if (123.45dd/-0.0dd !=  -__builtin_infd64())
+    FAILURE
+
+  d128 = 123.45f;
+  if (d128/-0.0dl != -__builtin_infd64())
+    FAILURE
+  if (123.45dl/-0.0dl != -__builtin_infd128())
+    FAILURE
+
+  d32 = 0.0df;
+  if (!__builtin_isnand32(-(d32/-0.0df)))
+    FAILURE
+  if (!__builtin_isnand32(-(0.0df/-0.0df)))
+    FAILURE
+
+  d64 = 0.0dd;
+  if (!__builtin_isnand64(-(d64/-0.0dd)))
+    FAILURE
+  if (!__builtin_isnand64(-(0.0dd/-0.0dd)))
+    FAILURE
+
+  d128 = 0.0dl;
+  if (!__builtin_isnand128(-(d128/-0.0dl)))
+    FAILURE
+  if (!__builtin_isnand128(-(0.0dl/-0.0dl)))
+    FAILURE
+
+  FINISH
+}