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| author | Bingfeng Mei <bmei@broadcom.com> | 2009-07-16 16:20:28 +0000 |
|---|---|---|
| committer | Bingfeng Mei <meibf@gcc.gnu.org> | 2009-07-16 16:20:28 +0000 |
| commit | db87b56d201119dba435f0ad631561ece1bd8fdc (patch) | |
| tree | 72392bc1ceae5611521ef2fc72f7e669c97c0668 /gcc | |
| parent | a4452ba2e3697452f567c9befd5b20de20870cee (diff) | |
| download | gcc-db87b56d201119dba435f0ad631561ece1bd8fdc.zip gcc-db87b56d201119dba435f0ad631561ece1bd8fdc.tar.gz gcc-db87b56d201119dba435f0ad631561ece1bd8fdc.tar.bz2 | |
modulo-sched.c (sms_schedule): stage_count <= 1 as correct comparison to skip unprofitable schedule
2009-07-16 Bingfeng Mei <bmei@broadcom.com>
* modulo-sched.c (sms_schedule): stage_count <= 1 as correct comparison
to skip unprofitable schedule
From-SVN: r149712
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/modulo-sched.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6612ad4..ba80a32 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2009-07-16 Bingfeng Mei <bmei@broadcom.com> + + * modulo-sched.c (sms_schedule): stage_count <= 1 as correct comparison + to skip unprofitable schedule + 2009-07-16 Simon Baldwin <simonb@google.com> * gcc.c (option_map): New flag -no-canonical-prefixes. diff --git a/gcc/modulo-sched.c b/gcc/modulo-sched.c index dbe77d9..5176880 100644 --- a/gcc/modulo-sched.c +++ b/gcc/modulo-sched.c @@ -1157,12 +1157,14 @@ sms_schedule (void) ps = sms_schedule_by_order (g, mii, maxii, node_order); - if (ps) + if (ps){ stage_count = PS_STAGE_COUNT (ps); + gcc_assert(stage_count >= 1); + } /* Stage count of 1 means that there is no interleaving between iterations, let the scheduling passes do the job. */ - if (stage_count < 1 + if (stage_count <= 1 || (count_init && (loop_count <= stage_count)) || (flag_branch_probabilities && (trip_count <= stage_count))) { |