--- "Joseph S. Myers" <[EMAIL PROTECTED]>写道:
> On Tue, 21 Jun 2005, Feng Wang wrote:
>
> > Hi,
> >
> > I want to write a testcase. The compiler gives two separated warnings on
> one
> > statement. How to write this with Dejagnu?
> >
> > I tried:
> > { dg-warning "Warning1" "Warning2" }
> > and
> > { dg-warning "Warning1" 8}
> > { dg-warning "Warning2" 8}
> > 8 is the line number of the statment.
>
> The correct way of writing warning tests with a line number is
>
> { dg-warning "warning" } (on original line, no number needed)
> { dg-warning "warning 2" "description" { target *-*-* } 8 } (for each
> other warning)
>
> The description is needed and needs to be nonempty and distinct for the
> second and subsequent warnings on a given line, because it is used to form
> the distinct test assertion names which appear after PASS or FAIL in the
> .sum files - having multiple tests with the same name causes ambiguity for
> regression testers.
>
This is ok. Thanks. And add one point, { target *-*-* } is also needed even we
test on all target. If we give the line number, the target is needed. This is
not mentioned in http://gcc.gnu.org/wiki/HowToPrepareATestcase . Maybe the page
need updating.
Best Regards,
Feng Wang
--
Creative Compiler Research Group,
National University of Defense Technology, China.
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