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| author | Andrew Trick <atrick@apple.com> | 2013-09-04 20:59:59 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-09-04 20:59:59 +0000 |
| commit | 42ebb3ad41813af292cfa681c1fe2aadd1008721 (patch) | |
| tree | abf0f2834ec7c7d95ab971b842a338cf40b15596 /include/llvm/CodeGen | |
| parent | b4b7a52ec57ff5d403f6526f24841b1ef81f8706 (diff) | |
| download | external_llvm-42ebb3ad41813af292cfa681c1fe2aadd1008721.zip external_llvm-42ebb3ad41813af292cfa681c1fe2aadd1008721.tar.gz external_llvm-42ebb3ad41813af292cfa681c1fe2aadd1008721.tar.bz2 | |
Added -misched-regpressure option.
Register pressure tracking is half the complexity of the
scheduler. It's useful to be able to turn it off for compile time and
performance comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189987 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen')
| -rw-r--r-- | include/llvm/CodeGen/MachineScheduler.h | 6 | ||||
| -rw-r--r-- | include/llvm/CodeGen/RegisterPressure.h | 2 |
2 files changed, 6 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/MachineScheduler.h b/include/llvm/CodeGen/MachineScheduler.h index 69c648c..e36ffdd 100644 --- a/include/llvm/CodeGen/MachineScheduler.h +++ b/include/llvm/CodeGen/MachineScheduler.h @@ -227,6 +227,7 @@ protected: PressureDiffs SUPressureDiffs; /// Register pressure in this region computed by initRegPressure. + bool ShouldTrackPressure; IntervalPressure RegPressure; RegPressureTracker RPTracker; @@ -259,8 +260,9 @@ public: ScheduleDAGMI(MachineSchedContext *C, MachineSchedStrategy *S): ScheduleDAGInstrs(*C->MF, *C->MLI, *C->MDT, /*IsPostRA=*/false, C->LIS), AA(C->AA), RegClassInfo(C->RegClassInfo), SchedImpl(S), DFSResult(0), - Topo(SUnits, &ExitSU), RPTracker(RegPressure), CurrentTop(), - TopRPTracker(TopPressure), CurrentBottom(), BotRPTracker(BotPressure), + Topo(SUnits, &ExitSU), ShouldTrackPressure(false), + RPTracker(RegPressure), CurrentTop(), TopRPTracker(TopPressure), + CurrentBottom(), BotRPTracker(BotPressure), NextClusterPred(NULL), NextClusterSucc(NULL) { #ifndef NDEBUG NumInstrsScheduled = 0; diff --git a/include/llvm/CodeGen/RegisterPressure.h b/include/llvm/CodeGen/RegisterPressure.h index 694d287..a890bb0 100644 --- a/include/llvm/CodeGen/RegisterPressure.h +++ b/include/llvm/CodeGen/RegisterPressure.h @@ -288,6 +288,8 @@ public: MF(0), TRI(0), RCI(0), LIS(0), MBB(0), P(rp), RequireIntervals(false), TrackUntiedDefs(false) {} + void reset(); + void init(const MachineFunction *mf, const RegisterClassInfo *rci, const LiveIntervals *lis, const MachineBasicBlock *mbb, MachineBasicBlock::const_iterator pos, |