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Rename Interval class to LiveInterval to avoid conflicting with the already

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existing llvm::Interval class.

Patch contributed by Vladimir Prus!
http://mail.cs.uiuc.edu/pipermail/llvmbugs/2004-June/000710.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14281 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-06-21 13:10:56 +00:00
parent c2dfb8bb90
commit 418da55c89
4 changed files with 71 additions and 66 deletions
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33
lib/CodeGen/LiveIntervalAnalysis.h
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@ -30,7 +30,7 @@ namespace llvm {
class MRegisterInfo;
class VirtRegMap;
struct Interval {
struct LiveInterval {
typedef std::pair<unsigned, unsigned> Range;
typedef std::vector<Range> Ranges;
unsigned reg; // the register of this interval
@ -38,7 +38,7 @@ namespace llvm {
// (number of uses *10^loopDepth)
Ranges ranges; // the ranges in which this register is live
explicit Interval(unsigned r);
explicit LiveInterval(unsigned r);
bool empty() const { return ranges.empty(); }
@ -60,17 +60,17 @@ namespace llvm {
bool liveAt(unsigned index) const;
bool overlaps(const Interval& other) const;
bool overlaps(const LiveInterval& other) const;
void addRange(unsigned start, unsigned end);
void join(const Interval& other);
void join(const LiveInterval& other);
bool operator<(const Interval& other) const {
bool operator<(const LiveInterval& other) const {
return start() < other.start();
}
bool operator==(const Interval& other) const {
bool operator==(const LiveInterval& other) const {
return reg == other.reg;
}
@ -79,12 +79,12 @@ namespace llvm {
Ranges::iterator mergeRangesBackward(Ranges::iterator it);
};
std::ostream& operator<<(std::ostream& os, const Interval& li);
std::ostream& operator<<(std::ostream& os, const LiveInterval& li);
class LiveIntervals : public MachineFunctionPass
{
public:
typedef std::list<Interval> Intervals;
typedef std::list<LiveInterval> Intervals;
private:
MachineFunction* mf_;
@ -148,7 +148,7 @@ namespace llvm {
/// runOnMachineFunction - pass entry point
virtual bool runOnMachineFunction(MachineFunction&);
Interval& getInterval(unsigned reg) {
LiveInterval& getInterval(unsigned reg) {
assert(r2iMap_.count(reg)&& "Interval does not exist for register");
return *r2iMap_.find(reg)->second;
}
@ -162,9 +162,9 @@ namespace llvm {
Intervals& getIntervals() { return intervals_; }
std::vector<Interval*> addIntervalsForSpills(const Interval& i,
VirtRegMap& vrm,
int slot);
std::vector<LiveInterval*> addIntervalsForSpills(const LiveInterval& i,
VirtRegMap& vrm,
int slot);
private:
/// computeIntervals - compute live intervals
@ -184,18 +184,19 @@ namespace llvm {
/// register def
void handleVirtualRegisterDef(MachineBasicBlock* mbb,
MachineBasicBlock::iterator mi,
Interval& interval);
LiveInterval& interval);
/// handlePhysicalRegisterDef - update intervals for a
/// physical register def
void handlePhysicalRegisterDef(MachineBasicBlock* mbb,
MachineBasicBlock::iterator mi,
Interval& interval);
LiveInterval& interval);
bool overlapsAliases(const Interval& lhs, const Interval& rhs) const;
bool overlapsAliases(const LiveInterval& lhs,
const LiveInterval& rhs) const;
Interval& getOrCreateInterval(unsigned reg);
LiveInterval& getOrCreateInterval(unsigned reg);
/// rep - returns the representative of this register
unsigned rep(unsigned reg);