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| author | Andrew Trick <atrick@apple.com> | 2013-09-06 17:32:39 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-09-06 17:32:39 +0000 |
| commit | 1251bcccc1ab02b1953318c4b79fc6a590b57efe (patch) | |
| tree | aeb005bcfb1c6a14d4dae391f6bacab8a65738dd /lib/CodeGen/MachineScheduler.cpp | |
| parent | f9c2fa8341d4b7fe64ccd7beb5696d4a9934f5e9 (diff) | |
| download | llvm-1251bcccc1ab02b1953318c4b79fc6a590b57efe.tar.gz llvm-1251bcccc1ab02b1953318c4b79fc6a590b57efe.tar.bz2 llvm-1251bcccc1ab02b1953318c4b79fc6a590b57efe.tar.xz | |
mi-sched: register pressure update tracing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190178 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineScheduler.cpp')
| -rw-r--r-- | lib/CodeGen/MachineScheduler.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp index 7d957b5f30..2a5881e7e6 100644 --- a/lib/CodeGen/MachineScheduler.cpp +++ b/lib/CodeGen/MachineScheduler.cpp @@ -577,8 +577,10 @@ void ScheduleDAGMI::updatePressureDiffs(ArrayRef<unsigned> LiveUses) { for (unsigned LUIdx = 0, LUEnd = LiveUses.size(); LUIdx != LUEnd; ++LUIdx) { /// FIXME: Currently assuming single-use physregs. unsigned Reg = LiveUses[LUIdx]; + DEBUG(dbgs() << " LiveReg: " << PrintVRegOrUnit(Reg, TRI) << "\n"); if (!TRI->isVirtualRegister(Reg)) continue; + // This may be called before CurrentBottom has been initialized. However, // BotRPTracker must have a valid position. We want the value live into the // instruction or live out of the block, so ask for the previous @@ -598,6 +600,8 @@ void ScheduleDAGMI::updatePressureDiffs(ArrayRef<unsigned> LiveUses) { for (VReg2UseMap::iterator UI = VRegUses.find(Reg); UI != VRegUses.end(); ++UI) { SUnit *SU = UI->SU; + DEBUG(dbgs() << " UpdateRegP: SU(" << SU->NodeNum << ") " + << *SU->getInstr()); // If this use comes before the reaching def, it cannot be a last use, so // descrease its pressure change. if (!SU->isScheduled && SU != &ExitSU) { |