[PATCH] Fix debug fallout of proposed PR68162 fix
Wed Nov 18 08:50:00 GMT 2015
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?
2015-11-18 Richard Biener <email@example.com>
* dwarf2out.c (gen_type_die_with_usage): Keep variant types
--- 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. */
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