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DEBUG shouldEvict decisions

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llvm-svn: 195490
This commit is contained in:
Andrew Trick 2013-11-22 19:07:42 +00:00
parent e1bdea2b2b
commit 09cec15235
2 changed files with 7 additions and 3 deletions
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4
lib/CodeGen/RegAllocBase.cpp
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@ -101,8 +101,8 @@ void RegAllocBase::allocatePhysRegs() {
// register if possible and populate a list of new live intervals that
// result from splitting.
DEBUG(dbgs() << "\nselectOrSplit "
<< MRI->getRegClass(VirtReg->reg)->getName()
<< ':' << *VirtReg << '\n');
<< MRI->getRegClass(VirtReg->reg)->getName()
<< ':' << *VirtReg << " w=" << VirtReg->weight << '\n');
typedef SmallVector<unsigned, 4> VirtRegVec;
VirtRegVec SplitVRegs;
unsigned AvailablePhysReg = selectOrSplit(*VirtReg, SplitVRegs);

6
lib/CodeGen/RegAllocGreedy.cpp
View File

@ -548,7 +548,11 @@ bool RAGreedy::shouldEvict(LiveInterval &A, bool IsHint,
if (CanSplit && IsHint && !BreaksHint)
return true;
return A.weight > B.weight;
if (A.weight > B.weight) {
DEBUG(dbgs() << "should evict: " << B << " w= " << B.weight << '\n');
return true;
}
return false;
}
/// canEvictInterference - Return true if all interferences between VirtReg and