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| author | Richard Biener <rguenther@suse.de> | 2017-01-09 08:22:58 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-01-09 08:22:58 +0000 |
| commit | 813b9c0d3a1b95c653bea8db73d7971ac600b68e (patch) | |
| tree | 5f29b06b53655844bba46ec76d7289ef827b1975 /gcc/dwarf2out.c | |
| parent | d86c3c0226d97ca68aa5ee65ce98778ad50e1b74 (diff) | |
| download | gcc-813b9c0d3a1b95c653bea8db73d7971ac600b68e.zip gcc-813b9c0d3a1b95c653bea8db73d7971ac600b68e.tar.gz gcc-813b9c0d3a1b95c653bea8db73d7971ac600b68e.tar.bz2 | |
re PR debug/79000 (ICE: in gen_member_die, at dwarf2out.c:23995)
2017-01-09 Richard Biener <rguenther@suse.de>
PR debug/79000
* dwarf2out.c (is_cxx): New overload with context.
(is_naming_typedef_decl): Use it.
* g++.dg/lto/pr79000_0.C: New testcase.
* g++.dg/lto/pr79000_1.c: Likewise.
From-SVN: r244217
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 8abeb7a..9da69df 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -3356,6 +3356,7 @@ static int get_AT_flag (dw_die_ref, enum dwarf_attribute); static unsigned get_AT_unsigned (dw_die_ref, enum dwarf_attribute); static inline dw_die_ref get_AT_ref (dw_die_ref, enum dwarf_attribute); static bool is_cxx (void); +static bool is_cxx (const_tree); static bool is_fortran (void); static bool is_ada (void); static bool remove_AT (dw_die_ref, enum dwarf_attribute); @@ -4990,6 +4991,27 @@ is_cxx (void) || lang == DW_LANG_C_plus_plus_11 || lang == DW_LANG_C_plus_plus_14); } +/* Return TRUE if DECL was created by the C++ frontend. */ + +static bool +is_cxx (const_tree decl) +{ + if (in_lto_p) + { + const_tree context = decl; + while (context && TREE_CODE (context) != TRANSLATION_UNIT_DECL) + { + if (TREE_CODE (context) == BLOCK) + context = BLOCK_SUPERCONTEXT (context); + else + context = get_containing_scope (context); + } + if (context && TRANSLATION_UNIT_LANGUAGE (context)) + return strncmp (TRANSLATION_UNIT_LANGUAGE (context), "GNU C++", 7) == 0; + } + return is_cxx (); +} + /* Return TRUE if the language is Java. */ static inline bool @@ -24762,7 +24784,7 @@ is_naming_typedef_decl (const_tree decl) /* It looks like Ada produces TYPE_DECLs that are very similar to C++ naming typedefs but that have different semantics. Let's be specific to c++ for now. */ - || !is_cxx ()) + || !is_cxx (decl)) return FALSE; return (DECL_ORIGINAL_TYPE (decl) == NULL_TREE |