#include "Splitter.h"
-#include "SimpleRegisterCoalescing.h"
+#include "RegisterCoalescer.h"
#include "llvm/Module.h"
#include "llvm/CodeGen/CalcSpillWeights.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
using namespace llvm;
char LoopSplitter::ID = 0;
-INITIALIZE_PASS(LoopSplitter, "loop-splitting",
- "Split virtual regists across loop boundaries.", false, false);
+INITIALIZE_PASS_BEGIN(LoopSplitter, "loop-splitting",
+ "Split virtual regists across loop boundaries.", false, false)
+INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
+INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
+INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
+INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
+INITIALIZE_PASS_END(LoopSplitter, "loop-splitting",
+ "Split virtual regists across loop boundaries.", false, false)
namespace llvm {
VNInfo *newVal = getNewVNI(preHeaderRange->valno);
newVal->def = copyDefIdx;
newVal->setCopy(copy);
- newVal->setIsDefAccurate(true);
li.removeRange(copyDefIdx, ls.lis->getMBBEndIdx(preHeader), true);
getNewLI()->addRange(LiveRange(copyDefIdx,
// Blow away output range definition.
outRange->valno->def = ls.lis->getInvalidIndex();
- outRange->valno->setIsDefAccurate(false);
li.removeRange(ls.lis->getMBBStartIdx(outBlock), copyDefIdx);
+ SlotIndex newDefIdx = ls.lis->getMBBStartIdx(outBlock);
+ assert(ls.lis->getInstructionFromIndex(newDefIdx) == 0 &&
+ "PHI def index points at actual instruction.");
VNInfo *newVal =
- getNewLI()->getNextValue(SlotIndex(ls.lis->getMBBStartIdx(outBlock),
- true),
- 0, false, ls.lis->getVNInfoAllocator());
+ getNewLI()->getNextValue(newDefIdx, 0, ls.lis->getVNInfoAllocator());
getNewLI()->addRange(LiveRange(ls.lis->getMBBStartIdx(outBlock),
copyDefIdx, newVal));
if (!insertRange)
continue;
- VNInfo *newVal = li.getNextValue(lis->getMBBStartIdx(preHeader),
- 0, false, lis->getVNInfoAllocator());
+ SlotIndex newDefIdx = lis->getMBBStartIdx(preHeader);
+ assert(lis->getInstructionFromIndex(newDefIdx) == 0 &&
+ "PHI def index points at actual instruction.");
+ VNInfo *newVal = li.getNextValue(newDefIdx, 0, lis->getVNInfoAllocator());
li.addRange(LiveRange(lis->getMBBStartIdx(preHeader),
lis->getMBBEndIdx(preHeader),
newVal));
lis->getMBBEndIdx(splitBlock), true);
}
} else if (intersects) {
- VNInfo *newVal = li.getNextValue(lis->getMBBStartIdx(splitBlock),
- 0, false, lis->getVNInfoAllocator());
+ SlotIndex newDefIdx = lis->getMBBStartIdx(splitBlock);
+ assert(lis->getInstructionFromIndex(newDefIdx) == 0 &&
+ "PHI def index points at actual instruction.");
+ VNInfo *newVal = li.getNextValue(newDefIdx, 0,
+ lis->getVNInfoAllocator());
li.addRange(LiveRange(lis->getMBBStartIdx(splitBlock),
lis->getMBBEndIdx(splitBlock),
newVal));