VarInfo::UsedBlocks is no longer used. Remove.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36250 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-04-18 05:04:38 +00:00
parent ca2563d2d8
commit f44c72817e
5 changed files with 2 additions and 21 deletions

View File

@ -48,9 +48,6 @@ void LiveVariables::VarInfo::dump() const {
cerr << " Alive in blocks: ";
for (unsigned i = 0, e = AliveBlocks.size(); i != e; ++i)
if (AliveBlocks[i]) cerr << i << ", ";
cerr << " Used in blocks: ";
for (unsigned i = 0, e = UsedBlocks.size(); i != e; ++i)
if (UsedBlocks[i]) cerr << i << ", ";
cerr << "\n Killed by:";
if (Kills.empty())
cerr << " No instructions.\n";
@ -73,7 +70,6 @@ LiveVariables::VarInfo &LiveVariables::getVarInfo(unsigned RegIdx) {
}
VarInfo &VI = VirtRegInfo[RegIdx];
VI.AliveBlocks.resize(MF->getNumBlockIDs());
VI.UsedBlocks.resize(MF->getNumBlockIDs());
return VI;
}
@ -138,9 +134,6 @@ void LiveVariables::HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB,
MachineInstr *MI) {
assert(VRInfo.DefInst && "Register use before def!");
unsigned BBNum = MBB->getNumber();
VRInfo.UsedBlocks[BBNum] = true;
VRInfo.NumUses++;
// Check to see if this basic block is already a kill block...
@ -163,7 +156,7 @@ void LiveVariables::HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB,
// If this virtual register is already marked as alive in this basic block,
// that means it is alive in at least one of the successor block, it's not
// a kill.
if (!VRInfo.AliveBlocks[BBNum])
if (!VRInfo.AliveBlocks[MBB->getNumber()])
VRInfo.Kills.push_back(MI);
// Update all dominating blocks to mark them known live.