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| author | Mark Wielaard <mjw@redhat.com> | 2014-05-21 15:44:59 +0000 |
|---|---|---|
| committer | Mark Wielaard <mark@gcc.gnu.org> | 2014-05-21 15:44:59 +0000 |
| commit | 7315daa68164ae36b4f50df35aab44ccdcb52f10 (patch) | |
| tree | d20dfd76b6bd33f6d7a2c6e5a1ca0f62dcebe91a /gcc/cp/cp-lang.c | |
| parent | ab65e21ab28c2e9a9955d3b7ede92cf2ffbb2a1c (diff) | |
| download | gcc-7315daa68164ae36b4f50df35aab44ccdcb52f10.zip gcc-7315daa68164ae36b4f50df35aab44ccdcb52f10.tar.gz gcc-7315daa68164ae36b4f50df35aab44ccdcb52f10.tar.bz2 | |
PR debug/16063. Add DW_AT_type to DW_TAG_enumeration.
Add a new lang-hook that provides the underlying base type of an
ENUMERAL_TYPE. The default implementation will just use type_for_size.
The implementation for C++ will use the ENUM_UNDERLYING_TYPE if it exists.
Use this enum_underlying_base_type lang-hook in dwarf2out.c to add a
DW_AT_type base type reference to a DW_TAG_enumeration.
gcc/
* dwarf2out.c (gen_enumeration_type_die): Add DW_AT_type if DWARF
version >= 3 or not strict DWARF.
* langhooks.h (struct lang_hooks_for_types): Add
enum_underlying_base_type.
* langhooks.c (lhd_enum_underlying_base_type): New function.
* gcc/langhooks.h (struct lang_hooks_for_types): Add
enum_underlying_base_type.
* langhooks-def.h (lhd_enum_underlying_base_type): New declaration.
(LANG_HOOKS_ENUM_UNDERLYING_BASE_TYPE): New define.
(LANG_HOOKS_FOR_TYPES_INITIALIZER): Add new lang hook.
gcc/cp/
* cp-lang.c (cxx_enum_underlying_base_type): New function.
(LANG_HOOKS_ENUM_UNDERLYING_BASE_TYPE): Define.
From-SVN: r210717
Diffstat (limited to 'gcc/cp/cp-lang.c')
| -rw-r--r-- | gcc/cp/cp-lang.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/cp/cp-lang.c b/gcc/cp/cp-lang.c index c28c07a..014f393 100644 --- a/gcc/cp/cp-lang.c +++ b/gcc/cp/cp-lang.c @@ -23,6 +23,7 @@ along with GCC; see the file COPYING3. If not see #include "coretypes.h" #include "tm.h" #include "tree.h" +#include "stor-layout.h" #include "cp-tree.h" #include "c-family/c-common.h" #include "langhooks.h" @@ -40,6 +41,7 @@ static enum classify_record cp_classify_record (tree type); static tree cp_eh_personality (void); static tree get_template_innermost_arguments_folded (const_tree); static tree get_template_argument_pack_elems_folded (const_tree); +static tree cxx_enum_underlying_base_type (const_tree); /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h; consequently, there should be very few hooks below. */ @@ -81,6 +83,8 @@ static tree get_template_argument_pack_elems_folded (const_tree); #define LANG_HOOKS_EH_PERSONALITY cp_eh_personality #undef LANG_HOOKS_EH_RUNTIME_TYPE #define LANG_HOOKS_EH_RUNTIME_TYPE build_eh_type_type +#undef LANG_HOOKS_ENUM_UNDERLYING_BASE_TYPE +#define LANG_HOOKS_ENUM_UNDERLYING_BASE_TYPE cxx_enum_underlying_base_type /* Each front end provides its own lang hook initializer. */ struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER; @@ -219,5 +223,21 @@ get_template_argument_pack_elems_folded (const_tree t) return fold_cplus_constants (get_template_argument_pack_elems (t)); } +/* The C++ version of the enum_underlying_base_type langhook. + See also cp/semantics.c (finish_underlying_type). */ + +static +tree cxx_enum_underlying_base_type (const_tree type) +{ + tree underlying_type = ENUM_UNDERLYING_TYPE (type); + + if (! ENUM_FIXED_UNDERLYING_TYPE_P (type)) + underlying_type + = c_common_type_for_mode (TYPE_MODE (underlying_type), + TYPE_UNSIGNED (underlying_type)); + + return underlying_type; +} + #include "gt-cp-cp-lang.h" #include "gtype-cp.h" |