diff options
| author | Maxim Kuvyrkov <maxim@codesourcery.com> | 2007-08-22 15:07:10 +0000 |
|---|---|---|
| committer | Maxim Kuvyrkov <mkuvyrkov@gcc.gnu.org> | 2007-08-22 15:07:10 +0000 |
| commit | 1c3d0d93e2b064822db68e22a09e424e9b4abe18 (patch) | |
| tree | 04fd8eda25f1831c163b4516b1d3c64f6b57fc22 /gcc/doc | |
| parent | f37dc59727f9ef6704c2063e2eef017ae3517cc6 (diff) | |
| download | gcc-1c3d0d93e2b064822db68e22a09e424e9b4abe18.zip gcc-1c3d0d93e2b064822db68e22a09e424e9b4abe18.tar.gz gcc-1c3d0d93e2b064822db68e22a09e424e9b4abe18.tar.bz2 | |
target.h (struct gcc_target.sched: dfa_pre_advance_cycle, [...]): New scheduler hooks.
* target.h (struct gcc_target.sched: dfa_pre_advance_cycle,
dfa_post_advance_cycle): New scheduler hooks.
* target-def.h (TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE,
TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): New macros to initialize
new hooks.
(TARGET_SCHED): Use them.
* doc/tm.texi (TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE,
TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): Document new hooks.
* haifa-sched.c (advance_one_cycle): Invoke new hooks.
* genautomata.c (insn_has_dfa_reservation_p): New DFA interface
function to facilitate debugging.
(INSN_HAS_DFA_RESERVATION_P_FUNC_NAME): New macro.
(output_insn_has_dfa_reservation_p): New static function to output
insn_has_dfa_reservation_p ().
(write_automata): Use it.
* genattr.c (main): Output declaration for
insn_has_dfa_reservation_p ().
From-SVN: r127707
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 2079ccb..0ec10c5 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -6180,6 +6180,20 @@ The hook is analogous to @samp{TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN} but used to initialize data used by the previous hook. @end deftypefn +@deftypefn {Target Hook} void TARGET_SCHED_DFA_PRE_CYCLE_ADVANCE (void) +The hook to notify target that the current simulated cycle is about to finish. +The hook is analogous to @samp{TARGET_SCHED_DFA_PRE_CYCLE_INSN} but used +to change the state in more complicated situations - e.g. when advancing +state on a single insn is not enough. +@end deftypefn + +@deftypefn {Target Hook} void TARGET_SCHED_DFA_POST_CYCLE_ADVANCE (void) +The hook to notify target that new simulated cycle has just started. +The hook is analogous to @samp{TARGET_SCHED_DFA_POST_CYCLE_INSN} but used +to change the state in more complicated situations - e.g. when advancing +state on a single insn is not enough. +@end deftypefn + @deftypefn {Target Hook} int TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD (void) This hook controls better choosing an insn from the ready insn queue for the @acronym{DFA}-based insn scheduler. Usually the scheduler |