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Fix an iterator invalidation problem. :( 

llvm-svn: 11627
This commit is contained in:
Chris Lattner 2004-02-19 18:32:29 +00:00
parent bef87a990a
commit 4c988391e1
1 changed files with 11 additions and 2 deletions
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13
llvm/lib/CodeGen/LiveVariables.cpp
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@ -337,13 +337,22 @@ void LiveVariables::instructionChanged(MachineInstr *OldMI,
// Move the killed information over...
killed_iterator I, E;
tie(I, E) = killed_range(OldMI);
std::vector<unsigned> Regs;
for (killed_iterator A = I; A != E; ++A)
RegistersKilled.insert(std::make_pair(NewMI, A->second));
Regs.push_back(A->second);
RegistersKilled.erase(I, E);
for (unsigned i = 0, e = Regs.size(); i != e; ++i)
RegistersKilled.insert(std::make_pair(NewMI, Regs[i]));
Regs.clear();
// Move the dead information over...
tie(I, E) = dead_range(OldMI);
for (killed_iterator A = I; A != E; ++A)
RegistersDead.insert(std::make_pair(NewMI, A->second));
Regs.push_back(A->second);
RegistersDead.erase(I, E);
for (unsigned i = 0, e = Regs.size(); i != e; ++i)
RegistersDead.insert(std::make_pair(NewMI, Regs[i]));
}