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, 37 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/dfp/mangle-mode.C b/gcc/testsuite/g++.dg/dfp/mangle-mode.C
new file mode 100644
index 000000000..ac30cb323
--- /dev/null
+++ b/gcc/testsuite/g++.dg/dfp/mangle-mode.C
@@ -0,0 +1,37 @@
+// { dg-do compile }
+
+// Check that the compiler mangles types defined with decimal float
+// modes according to the vendor-neutral C++ ABI.
+
+typedef float _Decimal32 __attribute__((mode(SD)));
+typedef float _Decimal64 __attribute__((mode(DD)));
+typedef float _Decimal128 __attribute__((mode(TD)));
+
+extern void foo32 (_Decimal32 a, _Decimal32 &b, _Decimal32 *c);
+extern void foo64 (_Decimal64 *a, _Decimal64 b, _Decimal64 &c);
+extern void foo128 (_Decimal128 &a, _Decimal128 *b, _Decimal128 c);
+
+void
+bar32 (void)
+{
+  _Decimal32 x, y, z;
+  foo32 (x, y, &z);
+}
+
+void
+bar64 (void)
+{
+  _Decimal64 x, y, z;
+  foo64 (&x, y, z);
+}
+
+void
+bar128 (void)
+{
+  _Decimal128 x, y, z;
+  foo128 (x, &y, z);
+}
+
+// { dg-final { scan-assembler "Z5foo32DfRDfPDf" } }
+// { dg-final { scan-assembler "Z5foo64PDdDdRDd" } }
+// { dg-final { scan-assembler "Z6foo128RDePDeDe" } }