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Use a list instead of a vector to store intervals. This will be needed

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when we join intervals and one of the two will need to be removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10892 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alkis Evlogimenos 2004-01-16 16:06:59 +00:00
parent cbbbdf768f
commit f5f1689ed2
4 changed files with 15 additions and 13 deletions
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5
include/llvm/CodeGen/LiveIntervalAnalysis.h
View File

@ -24,6 +24,7 @@
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include <iostream>
#include <list>
#include <map>
namespace llvm {
@ -83,7 +84,7 @@ namespace llvm {
}
};
typedef std::vector<Interval> Intervals;
typedef std::list<Interval> Intervals;
typedef std::vector<MachineBasicBlock*> MachineBasicBlockPtrs;
private:
@ -100,7 +101,7 @@ namespace llvm {
typedef std::map<MachineInstr*, unsigned> Mi2IndexMap;
Mi2IndexMap mi2iMap_;
typedef std::map<unsigned, unsigned> Reg2IntervalMap;
typedef std::map<unsigned, Intervals::iterator> Reg2IntervalMap;
Reg2IntervalMap r2iMap_;
Intervals intervals_;

5
include/llvm/CodeGen/LiveIntervals.h
View File

@ -24,6 +24,7 @@
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include <iostream>
#include <list>
#include <map>
namespace llvm {
@ -83,7 +84,7 @@ namespace llvm {
}
};
typedef std::vector<Interval> Intervals;
typedef std::list<Interval> Intervals;
typedef std::vector<MachineBasicBlock*> MachineBasicBlockPtrs;
private:
@ -100,7 +101,7 @@ namespace llvm {
typedef std::map<MachineInstr*, unsigned> Mi2IndexMap;
Mi2IndexMap mi2iMap_;
typedef std::map<unsigned, unsigned> Reg2IntervalMap;
typedef std::map<unsigned, Intervals::iterator> Reg2IntervalMap;
Reg2IntervalMap r2iMap_;
Intervals intervals_;

13
lib/CodeGen/LiveIntervalAnalysis.cpp
View File

@ -114,7 +114,7 @@ bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
unsigned reg = mop.getAllocatedRegNum();
Reg2IntervalMap::iterator r2iit = r2iMap_.find(reg);
assert(r2iit != r2iMap_.end());
intervals_[r2iit->second].weight += pow(10.0F, loopDepth);
r2iit->second->weight += pow(10.0F, loopDepth);
}
}
}
@ -148,11 +148,11 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock* mbb,
// add new interval
intervals_.push_back(Interval(reg));
// update interval index for this register
r2iMap_[reg] = intervals_.size() - 1;
r2iMap_.insert(std::make_pair(reg, --intervals_.end()));
interval = &intervals_.back();
}
else {
interval = &intervals_[r2iit->second];
interval = &*r2iit->second;
}
for (MbbIndex2MbbMap::iterator
@ -241,15 +241,14 @@ exit:
Reg2IntervalMap::iterator r2iit = r2iMap_.find(reg);
if (r2iit != r2iMap_.end()) {
unsigned ii = r2iit->second;
Interval& interval = intervals_[ii];
Interval& interval = *r2iit->second;
interval.addRange(start, end);
}
else {
intervals_.push_back(Interval(reg));
Interval& interval = intervals_.back();
// update interval index for this register
r2iMap_[reg] = intervals_.size() - 1;
r2iMap_.insert(std::make_pair(reg, --intervals_.end()));
interval.addRange(start, end);
}
}
@ -318,7 +317,7 @@ void LiveIntervals::computeIntervals()
}
}
std::sort(intervals_.begin(), intervals_.end(), StartPointComp());
intervals_.sort(StartPointComp());
DEBUG(std::copy(intervals_.begin(), intervals_.end(),
std::ostream_iterator<Interval>(std::cerr, "\n")));
}

5
lib/CodeGen/LiveIntervalAnalysis.h
View File

@ -24,6 +24,7 @@
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include <iostream>
#include <list>
#include <map>
namespace llvm {
@ -83,7 +84,7 @@ namespace llvm {
}
};
typedef std::vector<Interval> Intervals;
typedef std::list<Interval> Intervals;
typedef std::vector<MachineBasicBlock*> MachineBasicBlockPtrs;
private:
@ -100,7 +101,7 @@ namespace llvm {
typedef std::map<MachineInstr*, unsigned> Mi2IndexMap;
Mi2IndexMap mi2iMap_;
typedef std::map<unsigned, unsigned> Reg2IntervalMap;
typedef std::map<unsigned, Intervals::iterator> Reg2IntervalMap;
Reg2IntervalMap r2iMap_;
Intervals intervals_;