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| author | Richard Sandiford <richard.sandiford@arm.com> | 2021-11-02 10:51:23 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2021-11-02 10:51:23 +0000 |
| commit | d5c6604f42034e36b149f899c5ddb93025a645b4 (patch) | |
| tree | 3febb7400753ff374b3d69fb256da9e0a581a6a7 /gcc/cp/cp-objcp-common.h | |
| parent | d8fe39f417bebd34498ea60a3815c2f420116ecf (diff) | |
| download | gcc-d5c6604f42034e36b149f899c5ddb93025a645b4.zip gcc-d5c6604f42034e36b149f899c5ddb93025a645b4.tar.gz gcc-d5c6604f42034e36b149f899c5ddb93025a645b4.tar.bz2 | |
Add a simulate_record_decl lang hook
This patch adds a lang hook for defining a struct/RECORD_TYPE
“as if” it had appeared directly in the source code. It follows
the similar existing hook for enums.
It's the caller's responsibility to create the fields
(as FIELD_DECLs) but the hook's responsibility to create
and declare the associated RECORD_TYPE.
For now the hook is hard-coded to do the equivalent of:
typedef struct NAME { FIELDS } NAME;
but this could be controlled by an extra parameter if some callers
want a different behaviour in future.
The motivating use case is to allow the long list of struct
definitions in arm_neon.h to be provided by the compiler,
which in turn unblocks various arm_neon.h optimisations.
gcc/
* langhooks.h (lang_hooks_for_types::simulate_record_decl): New hook.
* langhooks-def.h (lhd_simulate_record_decl): Declare.
(LANG_HOOKS_SIMULATE_RECORD_DECL): Define.
(LANG_HOOKS_FOR_TYPES_INITIALIZER): Include it.
* langhooks.c (lhd_simulate_record_decl): New function.
gcc/c/
* c-tree.h (c_simulate_record_decl): Declare.
* c-objc-common.h (LANG_HOOKS_SIMULATE_RECORD_DECL): Override.
* c-decl.c (c_simulate_record_decl): New function.
gcc/cp/
* decl.c: Include langhooks-def.h.
(cxx_simulate_record_decl): New function.
* cp-objcp-common.h (cxx_simulate_record_decl): Declare.
(LANG_HOOKS_SIMULATE_RECORD_DECL): Override.
Diffstat (limited to 'gcc/cp/cp-objcp-common.h')
| -rw-r--r-- | gcc/cp/cp-objcp-common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/cp/cp-objcp-common.h b/gcc/cp/cp-objcp-common.h index f1704aa..d585940 100644 --- a/gcc/cp/cp-objcp-common.h +++ b/gcc/cp/cp-objcp-common.h @@ -39,6 +39,8 @@ extern bool cp_handle_option (size_t, const char *, HOST_WIDE_INT, int, extern tree cxx_make_type_hook (tree_code); extern tree cxx_simulate_enum_decl (location_t, const char *, vec<string_int_pair> *); +extern tree cxx_simulate_record_decl (location_t, const char *, + array_slice<const tree>); /* Lang hooks that are shared between C++ and ObjC++ are defined here. Hooks specific to C++ or ObjC++ go in cp/cp-lang.c and objcp/objcp-lang.c, @@ -139,6 +141,8 @@ extern tree cxx_simulate_enum_decl (location_t, const char *, #define LANG_HOOKS_MAKE_TYPE cxx_make_type_hook #undef LANG_HOOKS_SIMULATE_ENUM_DECL #define LANG_HOOKS_SIMULATE_ENUM_DECL cxx_simulate_enum_decl +#undef LANG_HOOKS_SIMULATE_RECORD_DECL +#define LANG_HOOKS_SIMULATE_RECORD_DECL cxx_simulate_record_decl #undef LANG_HOOKS_TYPE_FOR_MODE #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode #undef LANG_HOOKS_TYPE_FOR_SIZE |