Re: gfortran-dg-runtest, torture options

[Thomas Schwinge <thomas at codesourcery dot com>]

Hi!

On Thu, 3 Jul 2014 13:09:57 +0200, Jakub Jelinek <jakub@redhat.com> wrote:
> On Thu, Jul 03, 2014 at 01:06:48PM +0200, Thomas Schwinge wrote:
> > On Thu, 3 Jul 2014 12:58:32 +0200, Jakub Jelinek <jakub@redhat.com> wrote:
> > > On Thu, Jul 03, 2014 at 12:54:32PM +0200, Thomas Schwinge wrote:
> > > > Thanks Janis and Mikael for your replies (nearly a year ago...), but
> > > > still my questions remain to be answered: in my understanding, the
> > > > libgomp testsuite is not the place for compiler torture testing
> > > > (different optimization flags and all that -- and, that is done for
> > > > Fortran only; gfortran-dg-runtest), but rather, I understand the libgomp
> > > > testsuite to be the place for libgomp library testing ;-), and hence I
> > > > propose to remove that special casing of Fortran test cases:
> > > 
> > > No, it is intentional that we torture test those, libgomp is the place
> > > for all OpenMP runtime tests, not just for library testing.
> > 
> > But then, the obvious question: why for Fortran only, but not for C and
> > C++?
> 
> Fortran has far more tests with arrays etc. that testing just -O0 or -O2 is
> insufficient, that is typically not the case for C/C++.

OK to document as follows?

2014-07-03  Jakub Jelinek  <jakub@redhat.com>

	libgomp/
	* testsuite/libgomp.fortran/fortran.exp: Explain
	gfortran-dg-runtest usage.

--- libgomp/testsuite/libgomp.fortran/fortran.exp
+++ libgomp/testsuite/libgomp.fortran/fortran.exp
@@ -59,7 +59,9 @@ if { $lang_test_file_found } {
     append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST]
     set_ld_library_path_env_vars
 
-    # Main loop.
+    # For Fortran we're doing torture testing, as Fortran has far more tests
+    # with arrays etc. that testing just -O0 or -O2 is insufficient, that is
+    # typically not the case for C/C++.
     gfortran-dg-runtest $tests ""
 }
 


GrÃÃe,
 Thomas

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