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Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127388 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-03-10 01:21:58 +00:00
parent 581d535af9
commit 38f6bd0fc8
10 changed files with 25 additions and 30 deletions
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6
lib/CodeGen/RegAllocBasic.cpp
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@ -344,7 +344,7 @@ void RegAllocBase::spillReg(LiveInterval& VirtReg, unsigned PhysReg,
unassign(SpilledVReg, PhysReg);
// Spill the extracted interval.
spiller().spill(&SpilledVReg, SplitVRegs, PendingSpills);
spiller().spill(&SpilledVReg, SplitVRegs, &PendingSpills);
}
// After extracting segments, the query's results are invalid. But keep the
// contents valid until we're done accessing pendingSpills.
@ -469,9 +469,7 @@ unsigned RABasic::selectOrSplit(LiveInterval &VirtReg,
}
// No other spill candidates were found, so spill the current VirtReg.
DEBUG(dbgs() << "spilling: " << VirtReg << '\n');
SmallVector<LiveInterval*, 1> pendingSpills;
spiller().spill(&VirtReg, SplitVRegs, pendingSpills);
spiller().spill(&VirtReg, SplitVRegs, 0);
// The live virtual register requesting allocation was spilled, so tell
// the caller not to allocate anything during this round.