diff options
Diffstat (limited to 'lib/CodeGen/ScheduleDAGInstrs.cpp')
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.cpp | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp index dac29f1..8e18b3d 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.cpp +++ b/lib/CodeGen/ScheduleDAGInstrs.cpp @@ -32,6 +32,19 @@ ScheduleDAGInstrs::ScheduleDAGInstrs(MachineFunction &mf, const MachineDominatorTree &mdt) : ScheduleDAG(mf), MLI(mli), MDT(mdt), LoopRegs(MLI, MDT) {} +/// Run - perform scheduling. +/// +void ScheduleDAGInstrs::Run(MachineBasicBlock *bb, + MachineBasicBlock::iterator begin, + MachineBasicBlock::iterator end, + unsigned endcount) { + BB = bb; + Begin = begin; + InsertPosIndex = endcount; + + ScheduleDAG::Run(bb, end); +} + /// getOpcode - If this is an Instruction or a ConstantExpr, return the /// opcode value. Otherwise return UserOp1. static unsigned getOpcode(const Value *V) { @@ -146,7 +159,7 @@ void ScheduleDAGInstrs::BuildSchedGraph() { TM.getSubtarget<TargetSubtarget>().getSpecialAddressLatency(); // Walk the list of instructions, from bottom moving up. - for (MachineBasicBlock::iterator MII = End, MIE = Begin; + for (MachineBasicBlock::iterator MII = InsertPos, MIE = Begin; MII != MIE; --MII) { MachineInstr *MI = prior(MII); const TargetInstrDesc &TID = MI->getDesc(); @@ -428,7 +441,7 @@ std::string ScheduleDAGInstrs::getGraphNodeLabel(const SUnit *SU) const { MachineBasicBlock *ScheduleDAGInstrs::EmitSchedule() { // For MachineInstr-based scheduling, we're rescheduling the instructions in // the block, so start by removing them from the block. - while (Begin != End) { + while (Begin != InsertPos) { MachineBasicBlock::iterator I = Begin; ++Begin; BB->remove(I); @@ -443,7 +456,7 @@ MachineBasicBlock *ScheduleDAGInstrs::EmitSchedule() { continue; } - BB->insert(End, SU->getInstr()); + BB->insert(InsertPos, SU->getInstr()); } // Update the Begin iterator, as the first instruction in the block |