[PATCH] debug/96383 - emit debug info for used external functions

[Richard Biener]

On Thu, 30 Jul 2020, Andreas Schwab wrote:

> On Jul 30 2020, Richard Biener wrote:
> 
> > diff --git a/gcc/testsuite/gcc.dg/debug/dwarf2/pr96383-1.c b/gcc/testsuite/gcc.dg/debug/dwarf2/pr96383-1.c
> > new file mode 100644
> > index 00000000000..ede30f9a95e
> > --- /dev/null
> > +++ b/gcc/testsuite/gcc.dg/debug/dwarf2/pr96383-1.c
> > @@ -0,0 +1,17 @@
> > +/* { dg-do compile } */
> > +/* { dg-options "-g -gdwarf -dA" } */
> > +
> > +extern void foo (int);
> > +extern void bar (int);
> > +
> > +int main()
> > +{
> > +  foo (1);
> > +}
> > +
> > +/* We want subprogram DIEs for both foo and main and a DIE for
> > +   the formal parameter of foo.  We do not want a DIE for
> > +   unusedbar.  */
> > +/* { dg-final { scan-assembler-times "DW_TAG_subprogram" 4 } } */
> > +/* { dg-final { scan-assembler-times "DW_TAG_formal_parameter" 2 } } */
> > +/* { dg-final { scan-assembler-not "unusedbar" } } */
> 
> The test doesn't reference unusedbar at all, is that intended?

Whoops, fixed.

Richard.