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| author | Jan Hubicka <jh@suse.cz> | 2000-03-29 09:54:31 +0000 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2000-03-29 09:54:31 +0000 |
| commit | db8cb48e64684efc2956b1229e9b1fbac558229a (patch) | |
| tree | 6115adcb32b8d779e6fc736f4b16ea206907a22e /gcc/flags.h | |
| parent | 402eec872f73eebdbfb05cf4bbb133ed9af3460a (diff) | |
| download | gcc-db8cb48e64684efc2956b1229e9b1fbac558229a.zip gcc-db8cb48e64684efc2956b1229e9b1fbac558229a.tar.gz gcc-db8cb48e64684efc2956b1229e9b1fbac558229a.tar.bz2 | |
flags.h (flag_optimize_sibling_calls): Declare.
* flags.h (flag_optimize_sibling_calls): Declare.
* calls.c (expand_call): Fail sibcall when
!flag_optimize_sibling_calls
* invoke.texi (flag_optimize_sibling_calls): Document.
* toplev.c (flag_optimize_sibling_calls): New global variable.
(f_options): Add flag_optimize_sibling_calls.
(rest_of_compilation): Conditionize
optimize_sibling_and_tail_recursive_calls by
flag_optimize_sibling_calls.
(main): Set flag_optimize_sibling_calls for -O2.
* stmt.c (expand_return): Conditionize tail recursion by
flag_optimize_sibling_calls.
From-SVN: r32802
Diffstat (limited to 'gcc/flags.h')
| -rw-r--r-- | gcc/flags.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/flags.h b/gcc/flags.h index 1d7e782..81f5bda 100644 --- a/gcc/flags.h +++ b/gcc/flags.h @@ -299,6 +299,10 @@ extern int flag_volatile_static; extern int flag_fast_math; +/* Nonzero allows GCC to optimize sibling and tail recursive calls. */ + +extern int flag_optimize_sibling_calls; + /* Nonzero means the front end generally wants `errno' maintained by math operations, like built-in SQRT, unless overridden by flag_fast_math. */ |