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| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-02-14 20:51:12 +0000 |
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| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-02-14 20:51:12 +0000 |
| commit | daade6c854bb6d881d6a4fc7bb796213de6f9bdf (patch) | |
| tree | 7a540538a5e270d707114483c3ef55c404bc813f /gcc/doc | |
| parent | 3e9b45908d8187b627ce37fe2ae9c9ee71682291 (diff) | |
| download | gcc-daade6c854bb6d881d6a4fc7bb796213de6f9bdf.tar.gz | |
PR rtl-optimization/28772
* Makefile.in (haifa-sched.o): Add dependency on $(PARAMS_H).
Backport from mainline:
2006-04-13 Eric Botcazou <ebotcazou@adacore.com>
* params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
defaulting to 100.
* params.h (MAX_SCHED_READY_INSNS): New macro.
* haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
past MAX_SCHED_READY_INSNS during the first scheduling pass.
(schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
the ready list for 1 cycle during the first scheduling pass.
* doc/invoke.texi (--param): New parameter max-sched-ready-insns.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_1-branch@121964 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 910f438d68c..3f95a3e5a97 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -6082,6 +6082,12 @@ feedback is available and may be set to higher values than @option{reorder-block-duplicate} since information about the hot spots is more accurate. +@item max-sched-ready-insns +The maximum number of instructions ready to be issued the scheduler should +consider at any given time during the first scheduling pass. Increasing +values mean more thorough searches, making the compilation time increase +with probably little benefit. The default value is 100. + @item max-sched-region-blocks The maximum number of blocks in a region to be considered for interblock scheduling. The default value is 10. |