[RegAllocGreedy] debug output fix

[Jonas Paulsson via llvm-commits]

Hi,

It seems like

LLVM_DEBUG(dbgs() << "should evict: " << B << " w= " << B.weight << '\n');

is duplicating the printing of weight, since LiveInterval already prints it:

void LiveInterval::print(raw_ostream &OS) const {
   OS << printReg(reg) << ' ';
   super::print(OS);
   // Print subranges
   for (const SubRange &SR : subranges())
     OS << SR;
   OS << " weight:" << weight;
}

I see this in the dumps:
selectOrSplit ADDR64Bit:%96 [32r,3712r:0)  0 at 32r weight:1.609069e-02 
w=1.609069e-02
--

Is this needed in special situations, or is my patch ok?

/Jonas


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