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
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if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 124 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/dfp/convert-dfp-round.c b/gcc/testsuite/gcc.dg/dfp/convert-dfp-round.c
new file mode 100644
index 000000000..e3781bfc9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/convert-dfp-round.c
@@ -0,0 +1,124 @@
+/* { dg-options "-O0" } */
+/* { dg-skip-if "test is for emulation" { hard_dfp } { "*" } { "" } } */
+
+/* N1150 5.2: Conversions among decimal floating types and between
+   decimal floating types and generic floating types.
+   C99 6.3.1.5(3) New.
+
+   Perform conversions between DFP types in which the assigned value
+   cannot be represented exactly in the result and must be rounded
+   correctly according to the current rounding mode.
+
+   Normally this would not be part of compiler testing, but conversions
+   are currently handled in libgcc via decNumber.  */
+
+#include "dfp-dbg.h"
+#include "dfp-round.h"
+
+_Decimal32 d32;
+_Decimal64 d64;
+_Decimal128 d128;
+
+_Decimal32 d64_to_d32 (_Decimal64 d) { return d; }
+_Decimal64 d128_to_d64 (_Decimal128 d) { return d; }
+_Decimal32 d128_to_d32 (_Decimal128 d) { return d; }
+
+int
+do_d64_to_d32 (_Decimal64 orig, _Decimal32 exp)
+{
+  d64 = orig;
+  d32 = d64_to_d32 (d64);
+  return (d32 == exp);
+}
+
+int
+do_d128_to_d32 (_Decimal128 orig, _Decimal32 exp)
+{
+  d128 = orig;
+  d32 = d128_to_d32 (d128);
+  return (d32 == exp);
+}
+
+int
+do_d128_to_d64 (_Decimal128 orig, _Decimal64 exp)
+{
+  d128 = orig;
+  d64 = d128_to_d64 (d128);
+  return (d64 == exp);
+}
+
+int
+main ()
+{
+  DFP_SETROUND (FE_DEC_DOWNWARD);
+  if (!do_d64_to_d32 (1.1111125dd, 1.111112df)) FAILURE
+  if (!do_d64_to_d32 (1.1111135dd, 1.111113df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111125dd, -1.111113df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111135dd, -1.111114df)) FAILURE
+  if (!do_d128_to_d32 (1.1111125dl, 1.111112df)) FAILURE
+  if (!do_d128_to_d32 (1.1111135dl, 1.111113df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111125dl, -1.111113df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111135dl, -1.111114df)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111125dl, 1.111111111111112dd)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111135dl, 1.111111111111113dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111125dl, -1.111111111111113dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111135dl, -1.111111111111114dd)) FAILURE
+
+  DFP_SETROUND (FE_DEC_TONEAREST);
+  if (!do_d64_to_d32 (1.1111125dd, 1.111112df)) FAILURE
+  if (!do_d64_to_d32 (1.1111135dd, 1.111114df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111125dd, -1.111112df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111135dd, -1.111114df)) FAILURE
+  if (!do_d128_to_d32 (1.1111125dl, 1.111112df)) FAILURE
+  if (!do_d128_to_d32 (1.1111135dl, 1.111114df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111125dl, -1.111112df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111135dl, -1.111114df)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111125dl, 1.111111111111112dd)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111135dl, 1.111111111111114dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111125dl, -1.111111111111112dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111135dl, -1.111111111111114dd)) FAILURE
+  
+  DFP_SETROUND (FE_DEC_TONEARESTFROMZERO);
+  if (!do_d64_to_d32 (1.1111125dd, 1.111113df)) FAILURE
+  if (!do_d64_to_d32 (1.1111135dd, 1.111114df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111125dd, -1.111113df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111135dd, -1.111114df)) FAILURE
+  if (!do_d128_to_d32 (1.1111125dl, 1.111113df)) FAILURE
+  if (!do_d128_to_d32 (1.1111135dl, 1.111114df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111125dl, -1.111113df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111135dl, -1.111114df)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111125dl, 1.111111111111113dd)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111135dl, 1.111111111111114dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111125dl, -1.111111111111113dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111135dl, -1.111111111111114dd)) FAILURE
+  
+  DFP_SETROUND (FE_DEC_TOWARDZERO);
+  if (!do_d64_to_d32 (1.1111125dd, 1.111112df)) FAILURE
+  if (!do_d64_to_d32 (1.1111135dd, 1.111113df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111125dd, -1.111112df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111135dd, -1.111113df)) FAILURE
+  if (!do_d128_to_d32 (1.1111125dl, 1.111112df)) FAILURE
+  if (!do_d128_to_d32 (1.1111135dl, 1.111113df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111125dl, -1.111112df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111135dl, -1.111113df)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111125dl, 1.111111111111112dd)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111135dl, 1.111111111111113dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111125dl, -1.111111111111112dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111135dl, -1.111111111111113dd)) FAILURE
+
+  DFP_SETROUND (FE_DEC_UPWARD);
+  if (!do_d64_to_d32 (1.1111125dd, 1.111113df)) FAILURE
+  if (!do_d64_to_d32 (1.1111135dd, 1.111114df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111125dd, -1.111112df)) FAILURE
+  if (!do_d64_to_d32 (-1.1111135dd, -1.111113df)) FAILURE
+  if (!do_d128_to_d32 (1.1111125dl, 1.111113df)) FAILURE
+  if (!do_d128_to_d32 (1.1111135dl, 1.111114df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111125dl, -1.111112df)) FAILURE
+  if (!do_d128_to_d32 (-1.1111135dl, -1.111113df)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111125dl, 1.111111111111113dd)) FAILURE
+  if (!do_d128_to_d64 (1.1111111111111135dl, 1.111111111111114dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111125dl, -1.111111111111112dd)) FAILURE
+  if (!do_d128_to_d64 (-1.1111111111111135dl, -1.111111111111113dd)) FAILURE
+  
+  FINISH
+}