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misched: Rename RemainingCount to avoid confusion with remaining resources.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167443 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2012-11-06 07:10:34 +00:00
parent a78d3228e8
commit 2276453e2b
1 changed files with 6 additions and 6 deletions
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12
lib/CodeGen/MachineScheduler.cpp
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@ -220,7 +220,7 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
// The Scheduler may insert instructions during either schedule() or
// exitRegion(), even for empty regions. So the local iterators 'I' and
// 'RegionEnd' are invalid across these calls.
unsigned RemainingCount = MBB->size();
unsigned RemainingInstrs = MBB->size();
for(MachineBasicBlock::iterator RegionEnd = MBB->end();
RegionEnd != MBB->begin(); RegionEnd = Scheduler->begin()) {
@ -229,19 +229,19 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
|| TII->isSchedulingBoundary(llvm::prior(RegionEnd), MBB, *MF)) {
--RegionEnd;
// Count the boundary instruction.
--RemainingCount;
--RemainingInstrs;
}
// The next region starts above the previous region. Look backward in the
// instruction stream until we find the nearest boundary.
MachineBasicBlock::iterator I = RegionEnd;
for(;I != MBB->begin(); --I, --RemainingCount) {
for(;I != MBB->begin(); --I, --RemainingInstrs) {
if (TII->isSchedulingBoundary(llvm::prior(I), MBB, *MF))
break;
}
// Notify the scheduler of the region, even if we may skip scheduling
// it. Perhaps it still needs to be bundled.
Scheduler->enterRegion(MBB, I, RegionEnd, RemainingCount);
Scheduler->enterRegion(MBB, I, RegionEnd, RemainingInstrs);
// Skip empty scheduling regions (0 or 1 schedulable instructions).
if (I == RegionEnd || I == llvm::prior(RegionEnd)) {
@ -255,7 +255,7 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
<< ":BB#" << MBB->getNumber() << "\n From: " << *I << " To: ";
if (RegionEnd != MBB->end()) dbgs() << *RegionEnd;
else dbgs() << "End";
dbgs() << " Remaining: " << RemainingCount << "\n");
dbgs() << " Remaining: " << RemainingInstrs << "\n");
// Schedule a region: possibly reorder instructions.
// This invalidates 'RegionEnd' and 'I'.
@ -268,7 +268,7 @@ bool MachineScheduler::runOnMachineFunction(MachineFunction &mf) {
// scheduler for the top of it's scheduled region.
RegionEnd = Scheduler->begin();
}
assert(RemainingCount == 0 && "Instruction count mismatch!");
assert(RemainingInstrs == 0 && "Instruction count mismatch!");
Scheduler->finishBlock();
}
Scheduler->finalizeSchedule();