c-family/
* c-pretty-print.c (pp_c_integer_constant): Check for all __intN
types, not just __int128.
* c-cppbuiltin.c (c_cpp_builtins): Add builtins for all __intN
types, not just __int128.
(cpp_atomic_builtins): Round pointer sizes up.
(type_suffix): Use type precision, not specific types.
* c-common.c (c_common_reswords): Remove __int128 special case.
(c_common_type_for_size): Check for all __intN types, not just
__int128.
(c_common_type_for_mode): Likewise.
(c_common_signed_or_unsigned_type): Likewise.
(c_build_bitfield_integer_type): Likewise.
(c_common_nodes_and_builtins): Likewise.
(keyword_begins_type_specifier): Likewise.
* c-common.h (rid): Remove RID_INT128 and add RID_INT_N_* for all
__intN variants.
c/
* c-parser.c (c_parse_init): Add RID entries for each __intN.
(c_token_starts_typename): Check all __intN, not just __int128.
(c_token_starts_declspecs): Likewise.
(c_parser_declspecs): Likewise.
(c_parser_attribute_any_word): Likewise.
(c_parser_objc_selector): Likewise.
* c-tree.h (c_typespec_keyword): cts_int128 -> cts_int_n.
(struct c_declspecs): Add int_n_idx field to record *which* __intN
is specified.
* c-decl.c (declspecs_add_type): Check for all __intN, not just
__int128.
(finish_declspecs): Likewise.
testsuite/
* g++.dg/abi/mangle64.C: New.
cp/
* typeck.c (cp_common_type): Check for all __intN types, not just
__int128.
* decl.c (grokdeclarator): Likewise.
* rtti.c (emit_support_tinfos): Check for all __intN types, not just
__int128.
* parser.c (cp_lexer_next_token_is_decl_specifier_keyword): Check
for all __intN types, not just __int128.
(cp_parser_simple_type_specifier): Likewise.
* mangle.c (integer_type_codes): Remove int128-specific codes.
* cp-tree.h (cp_decl_specifier_seq): Add int_n_idx to store which
__intN was specified.
* lex.c (init_reswords): Reserve all __intN keywords.
lto/
* lto-lang.c (lto_build_c_type_nodes): Check intN types for
size-type as well.
(lto_init): Initialize all intN types, not just int128.