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Revert patches 1.79 and 1.80 which had to do with dead MBB's. Now that they

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don't exist, we don't have to pretend to handle them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14567 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-07-02 05:52:23 +00:00
parent a9a582fbb6
commit 230b4fb8a0
1 changed files with 4 additions and 6 deletions
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10
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -356,7 +356,8 @@ void LiveIntervals::handlePhysicalRegisterDef(MachineBasicBlock* mbb,
}
// a variable can only be killed by subsequent instructions
for (++mi; mi != e; ++mi) {
do {
++mi;
baseIndex += InstrSlots::NUM;
for (KillIter ki = lv_->killed_begin(mi), ke = lv_->killed_end(mi);
ki != ke; ++ki) {
@ -366,13 +367,10 @@ void LiveIntervals::handlePhysicalRegisterDef(MachineBasicBlock* mbb,
goto exit;
}
}
}
} while (mi != e);
// LiveVariables does not compute information for dead basic blocks.
DEBUG(std::cerr << "Didn't find the end of the interval. Must be in a "
"dead block.");
end = getDefIndex(start)+1;
exit:
assert(start < end && "did not find end of interval?");
interval.addRange(start, end);
DEBUG(std::cerr << '\n');
}