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Added debugging options: -misched-only-func/block

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llvm-svn: 198124
This commit is contained in:
Andrew Trick 2013-12-28 21:57:02 +00:00
parent f37b4dad96
commit 2eb5d59199
1 changed files with 13 additions and 0 deletions
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13
lib/CodeGen/MachineScheduler.cpp
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@ -49,6 +49,11 @@ static cl::opt<bool> ViewMISchedDAGs("view-misched-dags", cl::Hidden,
static cl::opt<unsigned> MISchedCutoff("misched-cutoff", cl::Hidden,
cl::desc("Stop scheduling after N instructions"), cl::init(~0U));
static cl::opt<std::string> SchedOnlyFunc("misched-only-func", cl::Hidden,
cl::desc("Only schedule this function"));
static cl::opt<unsigned> SchedOnlyBlock("misched-only-block", cl::Hidden,
cl::desc("Only schedule this MBB#"));
#else
static bool ViewMISchedDAGs = false;
#endif // NDEBUG
@ -377,6 +382,14 @@ void MachineSchedulerBase::scheduleRegions(ScheduleDAGInstrs &Scheduler) {
Scheduler.startBlock(MBB);
#ifndef NDEBUG
if (SchedOnlyFunc.getNumOccurrences() && SchedOnlyFunc != MF->getName())
continue;
if (SchedOnlyBlock.getNumOccurrences()
&& (int)SchedOnlyBlock != MBB->getNumber())
continue;
#endif
// Break the block into scheduling regions [I, RegionEnd), and schedule each
// region as soon as it is discovered. RegionEnd points the scheduling
// boundary at the bottom of the region. The DAG does not include RegionEnd,