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Add some trace output to TwoAddressInstructionPass.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160380 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-07-17 17:57:23 +00:00
parent de39671ebb
commit a532bcec2f
1 changed files with 4 additions and 1 deletions
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5
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -1001,6 +1001,7 @@ TwoAddressInstructionPass::RescheduleMIBelowKill(MachineBasicBlock *MBB,
LV->removeVirtualRegisterKilled(Reg, KillMI);
LV->addVirtualRegisterKilled(Reg, MI);
DEBUG(dbgs() << "\trescheduled below kill: " << *KillMI);
return true;
}
@ -1154,6 +1155,7 @@ TwoAddressInstructionPass::RescheduleKillAboveMI(MachineBasicBlock *MBB,
LV->removeVirtualRegisterKilled(Reg, KillMI);
LV->addVirtualRegisterKilled(Reg, MI);
DEBUG(dbgs() << "\trescheduled kill: " << *KillMI);
return true;
}
@ -1185,7 +1187,8 @@ TryInstructionTransform(MachineBasicBlock::iterator &mi,
if (!regBKilled && MI.getOperand(DstIdx).isDead() &&
DeleteUnusedInstr(mi, nmi, mbbi, Dist)) {
++NumDeletes;
return true; // Done with this instruction.
DEBUG(dbgs() << "\tdeleted unused instruction.\n");
return true; // Done with this instruction."
}
if (TargetRegisterInfo::isVirtualRegister(regA))