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Change std::list into a std::vector for IntervalSets. This reduces

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compile time for 176.gcc from 5.6 secs to 4.7 secs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15072 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alkis Evlogimenos 2004-07-21 09:46:55 +00:00
parent 7b32639362
commit 2d54705c4b
1 changed files with 5 additions and 4 deletions
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9
lib/CodeGen/RegAllocIterativeScan.cpp
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@ -53,7 +53,7 @@ namespace {
const TargetMachine* tm_;
const MRegisterInfo* mri_;
LiveIntervals* li_;
typedef std::list<LiveInterval*> IntervalPtrs;
typedef std::vector<LiveInterval*> IntervalPtrs;
IntervalPtrs unhandled_, fixed_, active_, inactive_, handled_, spilled_;
std::auto_ptr<PhysRegTracker> prt_;
@ -196,7 +196,8 @@ bool RA::linearScan()
<< mf_->getFunction()->getName() << '\n');
unhandled_.sort(less_ptr<LiveInterval>());
std::sort(unhandled_.begin(), unhandled_.end(),
greater_ptr<LiveInterval>());
DEBUG(printIntervals("unhandled", unhandled_.begin(), unhandled_.end()));
DEBUG(printIntervals("fixed", fixed_.begin(), fixed_.end()));
DEBUG(printIntervals("active", active_.begin(), active_.end()));
@ -204,8 +205,8 @@ bool RA::linearScan()
while (!unhandled_.empty()) {
// pick the interval with the earliest start point
IntervalPtrs::value_type cur = unhandled_.front();
unhandled_.pop_front();
IntervalPtrs::value_type cur = unhandled_.back();
unhandled_.pop_back();
++numIterations;
DEBUG(std::cerr << "\n*** CURRENT ***: " << *cur << '\n');