Convert several std::vectors over to SmallVector, and use reserve() as appropriate for cases where std::vector is still used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54820 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 3ab4b02..c6f714a 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -58,7 +58,7 @@
RALinScan() : MachineFunctionPass((intptr_t)&ID) {}
typedef std::pair<LiveInterval*, LiveInterval::iterator> IntervalPtr;
- typedef std::vector<IntervalPtr> IntervalPtrs;
+ typedef SmallVector<IntervalPtr, 32> IntervalPtrs;
private:
/// RelatedRegClasses - This structure is built the first time a function is
/// compiled, and keeps track of which register classes have registers that
@@ -94,7 +94,7 @@
IntervalPtrs inactive_;
typedef std::priority_queue<LiveInterval*,
- std::vector<LiveInterval*>,
+ SmallVector<LiveInterval*, 64>,
greater_ptr<LiveInterval> > IntervalHeap;
IntervalHeap unhandled_;
std::auto_ptr<PhysRegTracker> prt_;
@@ -322,6 +322,8 @@
active_.empty() && inactive_.empty() &&
"interval sets should be empty on initialization");
+ handled_.reserve(li_->getNumIntervals());
+
for (LiveIntervals::iterator i = li_->begin(), e = li_->end(); i != e; ++i) {
if (TargetRegisterInfo::isPhysicalRegister(i->second->reg)) {
reginfo_->setPhysRegUsed(i->second->reg);