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| author | Stuart Hastings <stuart@apple.com> | 2002-08-25 05:21:11 +0000 |
|---|---|---|
| committer | Stan Shebs <shebs@gcc.gnu.org> | 2002-08-25 05:21:11 +0000 |
| commit | b6128b8c319487d4ecb240a211c0af9f6a4c2659 (patch) | |
| tree | 3380fca11b3c1b6f649fb9a54c3af4eb23ad8090 /gcc/function.h | |
| parent | 13d3f0b659c7db21e006e8d2894c93707a95583d (diff) | |
| download | gcc-b6128b8c319487d4ecb240a211c0af9f6a4c2659.zip gcc-b6128b8c319487d4ecb240a211c0af9f6a4c2659.tar.gz gcc-b6128b8c319487d4ecb240a211c0af9f6a4c2659.tar.bz2 | |
function.h (struct function): Add flag all_throwers_are_sibcalls.
2002-08-24 Stuart Hastings <stuart@apple.com>
* function.h (struct function): Add flag
all_throwers_are_sibcalls.
* except.c (set_nothrow_function_flags): Replaces
nothrow_function_p. Set new flag.
* except.h (set_nothrow_function_flags): Replaces
nothrow_function_p.
* dwarf2out.c (struct dw_fde_struct): Add flag
all_throwers_are_sibcalls.
(output_call_frame_info): Test it.
(dwarf2out_begin_prologue) Propagate it from cfun to
dw_fde_struct.
* toplev.c (rest_of_compilation): Update calls to
nothrow_function_p.
From-SVN: r56561
Diffstat (limited to 'gcc/function.h')
| -rw-r--r-- | gcc/function.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/function.h b/gcc/function.h index 0ee31d1..ff96b9c 100644 --- a/gcc/function.h +++ b/gcc/function.h @@ -437,6 +437,13 @@ struct function GTY(()) we should try to cut corners where we can. */ unsigned int is_thunk : 1; + /* This bit is used by the exception handling logic. It is set if all + calls (if any) are sibling calls. Such functions do not have to + have EH tables generated, as they cannot throw. A call to such a + function, however, should be treated as throwing if any of its callees + can throw. */ + unsigned int all_throwers_are_sibcalls : 1; + /* Nonzero if instrumentation calls for function entry and exit should be generated. */ unsigned int instrument_entry_exit : 1; |