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| author | jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-10-18 21:10:32 +0000 |
|---|---|---|
| committer | jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-10-18 21:10:32 +0000 |
| commit | 73eac312a5b993d7628da03461c79c4452be729d (patch) | |
| tree | 3d75f9c5827cef9704b4bbc12cbda4145c21754a /gcc/obstack.h | |
| parent | 2f373e5d7060522f0a25cfc15632fa9a4303f961 (diff) | |
| download | gcc-73eac312a5b993d7628da03461c79c4452be729d.tar.gz | |
* tree.c (restore_tree_status): Also free up temporary storage
when we finish a toplevel function.
(dump_tree_statistics): Print stats for backend obstacks.
* libgcc2.c (__throw): Don't copy the return address.
* dwarf2out.c (expand_builtin_dwarf_reg_size): Ignore return address.
* except.c (exceptions_via_longjmp): Initialize to 2 (uninitialized).
* toplev.c (main): Initialize exceptions_via_longjmp.
* tree.c: Add extra_inline_obstacks.
(save_tree_status): Use it.
(restore_tree_status): If this is a toplevel inline obstack and we
didn't want to save anything on it, recycle it.
(print_inline_obstack_statistics): New fn.
* function.c (pop_function_context_from): Pass context to
restore_tree_status.
* obstack.h (obstack_empty_p): New macro.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@16050 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/obstack.h')
| -rw-r--r-- | gcc/obstack.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/obstack.h b/gcc/obstack.h index dd8e8612bea..1b172acab27 100644 --- a/gcc/obstack.h +++ b/gcc/obstack.h @@ -332,6 +332,11 @@ int obstack_chunk_size (struct obstack *obstack); ({ struct obstack *__o = (OBSTACK); \ (unsigned) (__o->chunk_limit - __o->next_free); }) +#define obstack_empty_p(OBSTACK) \ + __extension__ \ + ({ struct obstack *__o = (OBSTACK); \ + (__o->chunk->prev == 0 && __o->next_free - __o->chunk->contents == 0); }) + #define obstack_grow(OBSTACK,where,length) \ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ @@ -460,6 +465,9 @@ __extension__ \ #define obstack_room(h) \ (unsigned) ((h)->chunk_limit - (h)->next_free) +#define obstack_empty_p(h) \ + ((h)->chunk->prev == 0 && (h)->next_free - (h)->chunk->contents == 0) + /* Note that the call to _obstack_newchunk is enclosed in (..., 0) so that we can avoid having void expressions in the arms of the conditional expression. |