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Change the Spiller interface to take a LiveRangeEdit reference.

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This makes it possible to register delegates and get callbacks when the spiller
edits live ranges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127389 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-03-10 01:51:42 +00:00
parent 38f6bd0fc8
commit 47dbf6cef7
7 changed files with 34 additions and 50 deletions
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7
lib/CodeGen/RegAllocBasic.cpp
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@ -14,6 +14,7 @@
#define DEBUG_TYPE "regalloc"
#include "LiveIntervalUnion.h"
#include "LiveRangeEdit.h"
#include "RegAllocBase.h"
#include "RenderMachineFunction.h"
#include "Spiller.h"
@ -344,7 +345,8 @@ void RegAllocBase::spillReg(LiveInterval& VirtReg, unsigned PhysReg,
unassign(SpilledVReg, PhysReg);
// Spill the extracted interval.
spiller().spill(&SpilledVReg, SplitVRegs, &PendingSpills);
LiveRangeEdit LRE(SpilledVReg, SplitVRegs, 0, &PendingSpills);
spiller().spill(LRE);
}
// After extracting segments, the query's results are invalid. But keep the
// contents valid until we're done accessing pendingSpills.
@ -469,7 +471,8 @@ unsigned RABasic::selectOrSplit(LiveInterval &VirtReg,
}
// No other spill candidates were found, so spill the current VirtReg.
DEBUG(dbgs() << "spilling: " << VirtReg << '\n');
spiller().spill(&VirtReg, SplitVRegs, 0);
LiveRangeEdit LRE(VirtReg, SplitVRegs);
spiller().spill(LRE);
// The live virtual register requesting allocation was spilled, so tell
// the caller not to allocate anything during this round.