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Count coalesced copies 

llvm-svn: 103821
This commit is contained in:
Jakob Stoklund Olesen 2010-05-14 21:55:50 +00:00
parent 33af4fcdea
commit 6c038e33e9
1 changed files with 2 additions and 0 deletions
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2
llvm/lib/CodeGen/RegAllocFast.cpp
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@ -40,6 +40,7 @@ static cl::opt<bool> VerifyFastRegalloc("verify-fast-regalloc", cl::Hidden,
STATISTIC(NumStores, "Number of stores added");
STATISTIC(NumLoads , "Number of loads added");
STATISTIC(NumCopies, "Number of copies coalesced");
static RegisterRegAlloc
fastRegAlloc("fast", "fast register allocator", createFastRegisterAllocator);
@ -771,6 +772,7 @@ void RAFast::AllocateBasicBlock(MachineBasicBlock &MBB) {
// LiveVirtsRegs might refer to the instrs.
for (unsigned i = 0, e = Coalesced.size(); i != e; ++i)
MBB.erase(Coalesced[i]);
NumCopies += Coalesced.size();
DEBUG(MBB.dump());
}