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Rename to RegPressure API parameters RegUnits.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189123 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2013-08-23 17:48:51 +00:00
parent 6abb4ab812
commit 751c6d2878
1 changed files with 14 additions and 13 deletions
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27
lib/CodeGen/RegisterPressure.cpp
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@ -79,9 +79,9 @@ void RegPressureTracker::dump() const {
/// Increase the current pressure as impacted by these registers and bump
/// the high water mark if needed.
void RegPressureTracker::increaseRegPressure(ArrayRef<unsigned> Regs) {
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
PSetIterator PSetI = MRI->getPressureSets(Regs[i]);
void RegPressureTracker::increaseRegPressure(ArrayRef<unsigned> RegUnits) {
for (unsigned i = 0, e = RegUnits.size(); i != e; ++i) {
PSetIterator PSetI = MRI->getPressureSets(RegUnits[i]);
unsigned Weight = PSetI.getWeight();
for (; PSetI.isValid(); ++PSetI) {
CurrSetPressure[*PSetI] += Weight;
@ -93,9 +93,9 @@ void RegPressureTracker::increaseRegPressure(ArrayRef<unsigned> Regs) {
}
/// Simply decrease the current pressure as impacted by these registers.
void RegPressureTracker::decreaseRegPressure(ArrayRef<unsigned> Regs) {
for (unsigned I = 0, E = Regs.size(); I != E; ++I)
decreaseSetPressure(CurrSetPressure, MRI->getPressureSets(Regs[I]));
void RegPressureTracker::decreaseRegPressure(ArrayRef<unsigned> RegUnits) {
for (unsigned I = 0, E = RegUnits.size(); I != E; ++I)
decreaseSetPressure(CurrSetPressure, MRI->getPressureSets(RegUnits[I]));
}
/// Clear the result so it can be used for another round of pressure tracking.
@ -287,8 +287,9 @@ void RegPressureTracker::initLiveThru(const RegPressureTracker &RPTracker) {
}
/// \brief Convenient wrapper for checking membership in RegisterOperands.
static bool containsReg(ArrayRef<unsigned> Regs, unsigned Reg) {
return std::find(Regs.begin(), Regs.end(), Reg) != Regs.end();
/// (std::count() doesn't have an early exit).
static bool containsReg(ArrayRef<unsigned> RegUnits, unsigned RegUnit) {
return std::find(RegUnits.begin(), RegUnits.end(), RegUnit) != RegUnits.end();
}
/// Collect this instruction's unique uses and defs into SmallVectors for
@ -320,17 +321,17 @@ public:
}
protected:
void pushRegUnits(unsigned Reg, SmallVectorImpl<unsigned> &Regs) {
void pushRegUnits(unsigned Reg, SmallVectorImpl<unsigned> &RegUnits) {
if (TargetRegisterInfo::isVirtualRegister(Reg)) {
if (containsReg(Regs, Reg))
if (containsReg(RegUnits, Reg))
return;
Regs.push_back(Reg);
RegUnits.push_back(Reg);
}
else if (MRI->isAllocatable(Reg)) {
for (MCRegUnitIterator Units(Reg, TRI); Units.isValid(); ++Units) {
if (containsReg(Regs, *Units))
if (containsReg(RegUnits, *Units))
continue;
Regs.push_back(*Units);
RegUnits.push_back(*Units);
}
}
}