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unique_ptrify LiveRange::segmentSet

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This makes LiveRange non-copyable, and LiveInterval is already
non-movable (due to the explicit dtor), so now it's non-copyable and
non-movable.

Fix the one case where we were relying on the (deprecated in C++11)
implicit copy ctor of LiveInterval (which happened to work because the
ctor created an object with a null segmentSet, so double-deleting the
null pointer was fine).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231168 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-03-03 23:30:40 +00:00
parent ae0620c4e9
commit 45499d3adb
3 changed files with 9 additions and 14 deletions
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6
lib/CodeGen/LiveStackAnalysis.cpp
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@ -61,8 +61,10 @@ LiveStacks::getOrCreateInterval(int Slot, const TargetRegisterClass *RC) {
assert(Slot >= 0 && "Spill slot indice must be >= 0");
SS2IntervalMap::iterator I = S2IMap.find(Slot);
if (I == S2IMap.end()) {
I = S2IMap.insert(I, std::make_pair(Slot,
LiveInterval(TargetRegisterInfo::index2StackSlot(Slot), 0.0F)));
I = S2IMap.emplace(std::piecewise_construct, std::forward_as_tuple(Slot),
std::forward_as_tuple(
TargetRegisterInfo::index2StackSlot(Slot), 0.0F))
.first;
S2RCMap.insert(std::make_pair(Slot, RC));
} else {
// Use the largest common subclass register class.