diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/toplev.c | 2 | ||||
| -rw-r--r-- | gcc/tree.h | 12 |
3 files changed, 20 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c6c4125dbf8..29c83a7d2eb 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +Sun May 2 14:02:21 1999 Mark Mitchell <mark@codesourcery.com> + + * tree.h (struct tree_decl): Add comdat_flag. + (DECL_COMDAT): Define it. + * toplev.c (wrapup_global_declarations): Don't output a + DECL_COMDAT function just because it's public. + Sun May 2 15:16:42 1999 Joseph S. Myers <jsm28@cam.ac.uk> * pdp11.h (TARGET_SWITCHES): Fix error in previous change. diff --git a/gcc/toplev.c b/gcc/toplev.c index cc0453ceca6..1fe439a7247 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -2753,7 +2753,7 @@ wrapup_global_declarations (vec, len) && DECL_INITIAL (decl) != 0 && DECL_SAVED_INSNS (decl) != 0 && (flag_keep_inline_functions - || TREE_PUBLIC (decl) + || (TREE_PUBLIC (decl) && !DECL_COMDAT (decl)) || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) { reconsider = 1; diff --git a/gcc/tree.h b/gcc/tree.h index e91902f46df..0d7ea84aafc 100644 --- a/gcc/tree.h +++ b/gcc/tree.h @@ -1246,6 +1246,17 @@ struct tree_type multiple translation units should be merged. */ #define DECL_ONE_ONLY(NODE) (DECL_CHECK (NODE)->decl.transparent_union) +/* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need + not be put out unless it is needed in this translation unit. + Entities like this are shared across translation units (like weak + entities), but are guaranteed to be generated by any translation + unit that needs them, and therefore need not be put out anywhere + where they are not needed. DECL_COMDAT is just a hint to the + back-end; it is up to front-ends which set this flag to ensure + that there will never be any harm, other than bloat, in putting out + something which is DECL_COMDAT. */ +#define DECL_COMDAT(NODE) (DECL_CHECK (NODE)->decl.comdat_flag) + /* Used in FUNCTION_DECLs to indicate that function entry and exit should be instrumented with calls to support routines. */ #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) ((NODE)->decl.no_instrument_function_entry_exit) @@ -1321,6 +1332,7 @@ struct tree_decl unsigned non_addr_const_p : 1; unsigned no_instrument_function_entry_exit : 1; unsigned no_check_memory_usage : 1; + unsigned comdat_flag : 1; /* For a FUNCTION_DECL, if inline, this is the size of frame needed. If built-in, this is the code for which built-in function. |