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Instead of building a private numbering of MBB's use brg's nifty auto-numbering.

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Also convert df_iterator -> df_ext_iterator for subsequent stuff I'm doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14517 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-07-01 04:24:29 +00:00
parent 635b83f135
commit a5287a6376
1 changed files with 5 additions and 5 deletions
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10
lib/CodeGen/LiveVariables.cpp
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@ -178,9 +178,8 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
}
// Build BBMap...
unsigned BBNum = 0;
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
BBMap[I] = BBNum++;
BBMap[I] = I->getNumber();
// PhysRegInfo - Keep track of which instruction was the last use of a
// physical register. This is a purely local property, because all physical
@ -201,8 +200,9 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
// nodes, which are treated as a special case).
//
MachineBasicBlock *Entry = MF.begin();
for (df_iterator<MachineBasicBlock*> DFI = df_begin(Entry), E = df_end(Entry);
DFI != E; ++DFI) {
std::set<MachineBasicBlock*> Visited;
for (df_ext_iterator<MachineBasicBlock*> DFI = df_ext_begin(Entry, Visited),
E = df_ext_end(Entry, Visited); DFI != E; ++DFI) {
MachineBasicBlock *MBB = *DFI;
unsigned BBNum = getMachineBasicBlockIndex(MBB);
@ -310,7 +310,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
RegistersKilled.insert(std::make_pair(VirtRegInfo[i].Kills[j].second,
i + MRegisterInfo::FirstVirtualRegister));
}
return false;
}