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Implement assignment correctness verification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11609 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -206,6 +206,19 @@ namespace {
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std::cerr << mri_->getName(reg) << '\n';
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}
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}
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void verifyAssignment() const {
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for (Virt2PhysMap::const_iterator i = v2pMap_.begin(),
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e = v2pMap_.end(); i != e; ++i)
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for (Virt2PhysMap::const_iterator i2 = i; i2 != e; ++i2)
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if (mri_->areAliases(i->second, i2->second)) {
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const LiveIntervals::Interval
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&in = li_->getInterval(i->second),
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&in2 = li_->getInterval(i2->second);
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assert(!in.overlaps(in2) &&
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"overlapping intervals for same register!");
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}
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}
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};
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}
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@ -290,6 +303,8 @@ bool RA::runOnMachineFunction(MachineFunction &fn) {
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DEBUG(printVirtRegAssignment());
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DEBUG(std::cerr << "finished register allocation\n");
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// this is a slow operations do not uncomment
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// DEBUG(verifyAssignment());
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const TargetInstrInfo& tii = tm_->getInstrInfo();
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