dfp.exp: Run tests from c-c++-common/dfp.

	* g++.dg/dfp/dfp.exp: Run tests from c-c++-common/dfp.
	* c-c++-common/dfp/func-vararg-alternate-d32.c: XFAIL for C++.
	* c-c++-common/dfp/func-vararg-dfp.c: Ditto.
	* c-c++-common/dfp/func-vararg-mixed.c: Ditto.
	* c-c++-common/dfp/func-vararg-mixed-2.c: Ditto.

From-SVN: r152247

gcc/testsuite/ChangeLog

 2009-09-28  Janis Johnson  <janis187@us.ibm.com>
 
+	* g++.dg/dfp/dfp.exp: Run tests from c-c++-common/dfp.
+	* c-c++-common/dfp/func-vararg-alternate-d32.c: XFAIL for C++.
+	* c-c++-common/dfp/func-vararg-dfp.c: Ditto.
+	* c-c++-common/dfp/func-vararg-mixed.c: Ditto.
+	* c-c++-common/dfp/func-vararg-mixed-2.c: Ditto.
+
 	* g++.dg/dfp/dfp.exp: Fix typo.
 
 	* lib/target-supports.exp (check-effective-target-dfp-nocache):

gcc/testsuite/c-c++-common/dfp/func-vararg-alternate-d32.c

+/* { dg-xfail-run-if "32-bit vararg broken" { c++ } { "*" } { "" } } */
 /* Simple test of vararg passing for problematic types with and without
    double values passed between them.  */
 

gcc/testsuite/c-c++-common/dfp/func-vararg-dfp.c

+/* { dg-xfail-run-if "32-bit vararg broken" { c++ } { "*" } { "" } } */
+
 /* C99 6.5.2.2 Function calls.
    Test passing varargs of the decimal float types.  */
 

gcc/testsuite/c-c++-common/dfp/func-vararg-mixed-2.c

 /* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+/* { dg-xfail-run-if "32-bit vararg broken" { c++ } { "*" } { "" } } */
 /* { dg-options "-mpreferred-stack-boundary=2" } */
 
 /* C99 6.5.2.2 Function calls.

gcc/testsuite/c-c++-common/dfp/func-vararg-mixed.c

+/* { dg-xfail-run-if "32-bit vararg broken" { c++ } { "*" } { "" } } */
+
 /* C99 6.5.2.2 Function calls.
    Test passing varargs of the combination of decimal float types and
    other types.  */

gcc/testsuite/g++.dg/dfp/dfp.exp

@@ -48,9 +48,12 @@ set DEFAULT_CXXFLAGS ""
 # Initialize `dg'.
 dg-init
 
-# Main loop.
+# Main loop.  Run the tests that are specific to C++.
 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[C]] \
         "" $DEFAULT_CXXFLAGS
+# Run tests that are shared with C testing.
+dg-runtest [lsort [glob -nocomplain $srcdir/c-c++-common/dfp/*.c]] \
+        "" $DEFAULT_CXXFLAGS
 
 # All done.
 dg-finish