https://gcc.gnu.org/g:113638d2ab90b8b104a2e42d5c9470a9bda98bb5
commit 113638d2ab90b8b104a2e42d5c9470a9bda98bb5 Author: Andrew Stubbs <[email protected]> Date: Fri Jan 15 11:26:46 2021 +0000 DWARF address space for variables Add DWARF address class attributes for variables that exist outside the generic address space. In particular, this is the case for gang-private variables in OpenACC offload kernels. gcc/ChangeLog: * dwarf2out.cc (add_location_or_const_value_attribute): Set DW_AT_address_class, if appropriate. Diff: --- gcc/dwarf2out.cc | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/gcc/dwarf2out.cc b/gcc/dwarf2out.cc index 1473f731a6aa..8c711e430ba8 100644 --- a/gcc/dwarf2out.cc +++ b/gcc/dwarf2out.cc @@ -21030,6 +21030,15 @@ add_location_or_const_value_attribute (dw_die_ref die, tree decl, bool cache_p) if (list) { add_AT_location_description (die, DW_AT_location, list); + + addr_space_t as = TYPE_ADDR_SPACE (TREE_TYPE (decl)); + if (!ADDR_SPACE_GENERIC_P (as)) + { + int action = targetm.addr_space.debug (as); + /* Positive values indicate an address_class. */ + if (action >= 0) + add_AT_unsigned (die, DW_AT_address_class, action); + } return true; } /* None of that worked, so it must not really have a location;
