https://gcc.gnu.org/g:b14f86ba525e24c6a5af8867ff152e53258b58e1
commit b14f86ba525e24c6a5af8867ff152e53258b58e1
Author: Andrew Stubbs <a...@codesourcery.com>
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/ChangeLog.omp | 7 ++++++-
gcc/dwarf2out.cc | 9 +++++++++
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index dd70a08ff7d..e35ced18751 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -1,3 +1,8 @@
+2021-01-15 Andrew Stubbs <a...@codesourcery.com>
+
+ * dwarf2out.cc (add_location_or_const_value_attribute): Set
+ DW_AT_address_class, if appropriate.
+
2021-03-04 Andrew Stubbs <a...@codesourcery.com>
* dwarf2out.cc (notional_parents_list): New file variable.
@@ -16,7 +21,7 @@
* dwarf2out.cc (gen_subprogram_die): Check offload attributes only.
-2021-01-15 Andrew Stubbs <a...@codesourcery.com>
+2020-12-06 Andrew Stubbs <a...@codesourcery.com>
* dwarf2out.cc (gen_subprogram_die): Add high/low_pc attributes for
parents of offload kernels.
diff --git a/gcc/dwarf2out.cc b/gcc/dwarf2out.cc
index 9f747e8fcee..7ee945d066e 100644
--- a/gcc/dwarf2out.cc
+++ b/gcc/dwarf2out.cc
@@ -20998,6 +20998,15 @@ 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;
