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Refactor some code.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44010 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-11-12 06:35:08 +00:00
parent e6e1384c57
commit f2fbca68f8
4 changed files with 358 additions and 300 deletions
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30
include/llvm/CodeGen/LiveIntervalAnalysis.h
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@@ -32,6 +32,7 @@ namespace llvm {
class LiveVariables;
class MRegisterInfo;
class SSARegMap;
class TargetInstrInfo;
class TargetRegisterClass;
class VirtRegMap;
@@ -102,6 +103,10 @@ namespace llvm {
return getBaseIndex(index) + InstrSlots::STORE;
}
static float getSpillWeight(const MachineOperand &mop, unsigned loopDepth) {
return (mop.isUse()+mop.isDef()) * powf(10.0F, (float)loopDepth);
}
typedef Reg2IntervalMap::iterator iterator;
typedef Reg2IntervalMap::const_iterator const_iterator;
const_iterator begin() const { return r2iMap_.begin(); }
@@ -182,9 +187,6 @@ namespace llvm {
return I->second;
}
std::vector<LiveInterval*> addIntervalsForSpills(const LiveInterval& i,
VirtRegMap& vrm, unsigned reg);
// Interval removal
void removeInterval(unsigned Reg) {
@@ -223,6 +225,11 @@ namespace llvm {
if (O) print(*O, M);
}
/// addIntervalsForSpills - Create new intervals for spilled defs / uses of
/// the given interval.
std::vector<LiveInterval*>
addIntervalsForSpills(const LiveInterval& i, VirtRegMap& vrm);
private:
/// computeIntervals - Compute live intervals.
void computeIntervals();
@@ -267,6 +274,23 @@ namespace llvm {
MachineInstr *DefMI, unsigned index, unsigned i,
bool isSS, int slot, unsigned reg);
/// rewriteInstructionForSpills, rewriteInstructionsForSpills - Helper functions
/// for addIntervalsForSpills to rewrite uses / defs for the given live range.
void rewriteInstructionForSpills(const LiveInterval &li,
unsigned id, unsigned index, unsigned end, MachineInstr *MI,
MachineInstr *OrigDefMI, MachineInstr *DefMI, unsigned Slot, int LdSlot,
bool isLoad, bool isLoadSS, bool DefIsReMat, bool CanDelete,
VirtRegMap &vrm, SSARegMap *RegMap, const TargetRegisterClass* rc,
SmallVector<int, 4> &ReMatIds,
std::vector<LiveInterval*> &NewLIs);
void rewriteInstructionsForSpills(const LiveInterval &li,
LiveInterval::Ranges::const_iterator &I,
MachineInstr *OrigDefMI, MachineInstr *DefMI, unsigned Slot, int LdSlot,
bool isLoad, bool isLoadSS, bool DefIsReMat, bool CanDelete,
VirtRegMap &vrm, SSARegMap *RegMap, const TargetRegisterClass* rc,
SmallVector<int, 4> &ReMatIds,
std::vector<LiveInterval*> &NewLIs);
static LiveInterval createInterval(unsigned Reg);
void printRegName(unsigned reg) const;