On Thu, 11 Nov 2021, Jakub Jelinek wrote:
> Hi!
>
> Bootstrapped/regtested now successfully on x86_64-linux and i686-linux,
> verified the
> struct S { int e; int a : 1, b : 7, c : 8, d : 16; } s;
> struct T { int a : 1, b : 7; long long c : 8; int d : 16; } t;
>
> int
> main ()
> {
> s.c = 0x55;
> s.d = 0xaaaa;
> t.c = 0x55;
> t.d = 0xaaaa;
> s.e++;
> }
> testcase is compiled the same way as before again, ok for trunk?
OK, also for affected branches.
Thanks,
Richard.
> > 2021-11-10 Jakub Jelinek <ja...@redhat.com>
> >
> > PR debug/101378
> > * dwarf2out.c (field_byte_offset): Do the PCC_BITFIELD_TYPE_MATTERS
> > handling only for DECL_BIT_FIELD_TYPE decls.
> >
> > * g++.dg/debug/dwarf2/pr101378.C: New test.
> >
> > --- gcc/dwarf2out.c.jj 2021-11-05 10:19:46.339457342 +0100
> > +++ gcc/dwarf2out.c 2021-11-09 15:01:51.425437717 +0100
> > @@ -19646,6 +19646,7 @@ field_byte_offset (const_tree decl, stru
> > properly dynamic byte offsets only when PCC bitfield type doesn't
> > matter. */
> > if (PCC_BITFIELD_TYPE_MATTERS
> > + && DECL_BIT_FIELD_TYPE (decl)
> > && TREE_CODE (DECL_FIELD_OFFSET (decl)) == INTEGER_CST)
> > {
> > offset_int object_offset_in_bits;
> > --- gcc/testsuite/g++.dg/debug/dwarf2/pr101378.C.jj 2021-11-09
> > 15:17:39.504975396 +0100
> > +++ gcc/testsuite/g++.dg/debug/dwarf2/pr101378.C 2021-11-09
> > 15:17:28.067137556 +0100
> > @@ -0,0 +1,13 @@
> > +// PR debug/101378
> > +// { dg-do compile { target c++11 } }
> > +// { dg-options "-gdwarf-5 -dA" }
> > +// { dg-final { scan-assembler-times "0\[^0-9x\\r\\n\]*
> > DW_AT_data_member_location" 1 } }
> > +// { dg-final { scan-assembler-times "1\[^0-9x\\r\\n\]*
> > DW_AT_data_member_location" 1 } }
> > +// { dg-final { scan-assembler-times "2\[^0-9x\\r\\n\]*
> > DW_AT_data_member_location" 1 } }
> > +// { dg-final { scan-assembler-not "-1\[^0-9x\\r\\n\]*
> > DW_AT_data_member_location" } }
> > +
> > +struct E {};
> > +struct S
> > +{
> > + [[no_unique_address]] E e, f, g;
> > +} s;
>
> Jakub
>
>
--
Richard Biener <rguent...@suse.de>
SUSE Software Solutions Germany GmbH, Maxfeldstrasse 5, 90409 Nuernberg,
Germany; GF: Ivo Totev; HRB 36809 (AG Nuernberg)
