On Wed, 18 Nov 2015, Richard Biener wrote: > > The following patch makes sure we still emit a DW_TAG_typedef for > the element typedef in gcc.dg/debug/dwarf2/pr47939-4.c after a change > to how the C frontend structures the variant chain of arrays. > > It makes dwarf2out _not_ re-build the variant for arrays (like it > does for vectors). > > Patch was tested by Joseph (also on gdb testsuite?) and I'm currently > re-testing on x86_64-unknown-linux-gnu. > > Ok for trunk and GCC 5 branch?
Ping? Thanks, Richard. > Thanks, > Richard. > > 2015-11-18 Richard Biener <rguent...@suse.de> > > PR c/68162 > * dwarf2out.c (gen_type_die_with_usage): Keep variant types > of arrays. > > Index: gcc/dwarf2out.c > =================================================================== > --- gcc/dwarf2out.c (revision 230428) > +++ gcc/dwarf2out.c (working copy) > @@ -20784,9 +20784,10 @@ gen_type_die_with_usage (tree type, dw_d > /* We are going to output a DIE to represent the unqualified version > of this type (i.e. without any const or volatile qualifiers) so > get the main variant (i.e. the unqualified version) of this type > - now. (Vectors are special because the debugging info is in the > + now. (Vectors and arrays are special because the debugging info is in > the > cloned type itself). */ > - if (TREE_CODE (type) != VECTOR_TYPE) > + if (TREE_CODE (type) != VECTOR_TYPE > + && TREE_CODE (type) != ARRAY_TYPE) > type = type_main_variant (type); > > /* If this is an array type with hidden descriptor, handle it first. */
