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| author | Joseph Myers <joseph@codesourcery.com> | 2022-10-14 02:18:45 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2022-10-14 02:18:45 +0000 |
| commit | 18981635127c6701733dc052aa054e569271b733 (patch) | |
| tree | b4195c597f07b1ad29a276cfdc7edaa60fb21972 /gcc/c/c-tree.h | |
| parent | 621a911d336279d21e1e857cfead09af1c61df39 (diff) | |
| download | gcc-18981635127c6701733dc052aa054e569271b733.zip gcc-18981635127c6701733dc052aa054e569271b733.tar.gz gcc-18981635127c6701733dc052aa054e569271b733.tar.bz2 | |
c: C2x storage class specifiers in compound literals
Implement the C2x feature of storage class specifiers in compound
literals. Such storage class specifiers (static, register or
thread_local; also constexpr, but we don't yet have C2x constexpr
support implemented) can be used before the type name (not mixed with
type specifiers, unlike in declarations) and have the same semantics
and constraints as for declarations of named objects. Also allow GNU
__thread to be used, given that thread_local can be.
Bootstrapped with no regressions for x86_64-pc-linux-gnu.
gcc/c/
* c-decl.cc (build_compound_literal): Add parameter scspecs.
Handle storage class specifiers.
* c-parser.cc (c_token_starts_compound_literal)
(c_parser_compound_literal_scspecs): New.
(c_parser_postfix_expression_after_paren_type): Add parameter
scspecs. Call pedwarn_c11 for use of storage class specifiers.
Update call to build_compound_literal.
(c_parser_cast_expression, c_parser_sizeof_expression)
(c_parser_alignof_expression): Handle storage class specifiers for
compound literals. Update calls to
c_parser_postfix_expression_after_paren_type.
(c_parser_postfix_expression): Update syntax comment.
* c-tree.h (build_compound_literal): Update prototype.
* c-typeck.cc (c_mark_addressable): Diagnose taking address of
register compound literal.
gcc/testsuite/
* gcc.dg/c11-complit-1.c, gcc.dg/c11-complit-2.c,
gcc.dg/c11-complit-3.c, gcc.dg/c2x-complit-2.c,
gcc.dg/c2x-complit-3.c, gcc.dg/c2x-complit-4.c,
gcc.dg/c2x-complit-5.c, gcc.dg/c2x-complit-6.c,
gcc.dg/c2x-complit-7.c, gcc.dg/c90-complit-2.c,
gcc.dg/gnu2x-complit-1.c, gcc.dg/gnu2x-complit-2.c: New tests.
Diffstat (limited to 'gcc/c/c-tree.h')
| -rw-r--r-- | gcc/c/c-tree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/c/c-tree.h b/gcc/c/c-tree.h index 46a3e8e..e7cdd2f 100644 --- a/gcc/c/c-tree.h +++ b/gcc/c/c-tree.h @@ -734,7 +734,7 @@ extern void set_init_label (location_t, tree, location_t, struct obstack *); extern void process_init_element (location_t, struct c_expr, bool, struct obstack *); extern tree build_compound_literal (location_t, tree, tree, bool, - unsigned int); + unsigned int, struct c_declspecs *); extern void check_compound_literal_type (location_t, struct c_type_name *); extern tree c_start_switch (location_t, location_t, tree, bool); extern void c_finish_switch (tree, tree); |