diff options
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 27 |
1 files changed, 2 insertions, 25 deletions
@@ -3002,31 +3002,6 @@ struct GTY(()) tree_parm_decl { multiple translation units should be merged. */ #define DECL_ONE_ONLY(NODE) (DECL_COMDAT_GROUP (NODE) != NULL_TREE) -/* A replaceable function is one which may be replaced at link-time - with an entirely different definition, provided that the - replacement has the same type. For example, functions declared - with __attribute__((weak)) on most systems are replaceable. - - COMDAT functions are not replaceable, since all definitions of the - function must be equivalent. It is important that COMDAT functions - not be treated as replaceable so that use of C++ template - instantiations is not penalized. - - In other respects, the condition is usually equivalent to whether - the function binds to the current module (shared library or executable). - However, weak functions can always be overridden by earlier TUs - in the same module, even if they bind locally to that module. - - For example, DECL_REPLACEABLE is used to determine whether or not a - function (including a template instantiation) which is not - explicitly declared "inline" can be inlined. If the function is - DECL_REPLACEABLE then it is not safe to do the inlining, since the - implementation chosen at link-time may be different. However, a - function that is not DECL_REPLACEABLE can be inlined, since all - versions of the function will be functionally identical. */ -#define DECL_REPLACEABLE_P(NODE) \ - (!DECL_COMDAT (NODE) && (DECL_WEAK (NODE) || !targetm.binds_local_p (NODE))) - /* The name of the object as the assembler will see it (but before any translations made by ASM_OUTPUT_LABELREF). Often this is the same as DECL_NAME. It is an IDENTIFIER_NODE. */ @@ -5299,6 +5274,8 @@ extern void process_pending_assemble_externals (void); extern void finish_aliases_1 (void); extern void finish_aliases_2 (void); extern void remove_unreachable_alias_pairs (void); +extern bool decl_replaceable_p (tree); +extern bool decl_binds_to_current_def_p (tree); /* In stmt.c */ extern void expand_computed_goto (tree); |