2009/8/7 Janis Johnson <janis...@us.ibm.com>: > On Fri, 2009-08-07 at 00:06 +0200, Manuel López-Ibáñez wrote: >> Often I want to test the exactly same testcase in C and C++, so I find >> myself adding duplicate tests under gcc.dg/ and g++.dg/. Would it be >> possible to have a shared testsuite dir that is run for both C and C++ >> languages? (possibly with different default configurations, like >> adding -Wc++-compat to the commandline for C runs). > > I've been thinking about that lately, it would be useful for several > kinds of functionality. We'd want effective targets for the language > for using different options and for providing different error/warning > checks for each language. I haven't looked into how to handle it with > DejaGnu, maybe something like gcc.shared and a [symbolic] link to it > called g++.shared; do links work with Subversion?
Janis, it would be extremely useful to have dg-options that are only enabled for certain languages, so I can do /* { dg-options "-std=c99" { dg-require-effective-target c } } */ /* { dg-options "" { dg-require-effective-target c++ } } */ Would this be hard to implement? Any ideas? As for how to run the shared tests, Joseph suggestion works, but I think it is better to just run the common tests from each dg.exp file Index: gcc/testsuite/gcc.dg/dg.exp =================================================================== --- gcc/testsuite/gcc.dg/dg.exp (revision 150491) +++ gcc/testsuite/gcc.dg/dg.exp (working copy) @@ -30,7 +30,11 @@ dg-init # Main loop. dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cSi\]]] \ "" $DEFAULT_CFLAGS +# C/C++ common tests. +dg-runtest [lsort [glob -nocomplain $srcdir/c-c++-common/*.\[cSi\]]] \ + " -Wc++-compat " "" + # All done. dg-finish Index: gcc/testsuite/g++.dg/dg.exp =================================================================== --- gcc/testsuite/g++.dg/dg.exp (revision 150491) +++ gcc/testsuite/g++.dg/dg.exp (working copy) @@ -47,7 +47,11 @@ set tests [prune $tests $srcdir/$subdir/ set tests [prune $tests $srcdir/$subdir/graphite/*] # Main loop. dg-runtest $tests "" $DEFAULT_CXXFLAGS +# C/C++ common tests. +dg-runtest [lsort [glob -nocomplain $srcdir/c-c++-common/*.\[cSi\]]] \ + "" "" + # All done. dg-finish so people can run c-c++-common testcases by doing simply make -C gcc check-gcc RUNTESTFLAGS=dg.exp='*Wconversion*' Cheers, Manuel.