return Contents.OffsetedInfo.Val.SymbolName;
}
- /// clobbersPhysReg - Returns true if this RegMask operand clobbers PhysReg.
- bool clobbersPhysReg(unsigned PhysReg) const {
- assert(isRegMask() && "Wrong MachineOperand accessor");
+ /// clobbersPhysReg - Returns true if this RegMask clobbers PhysReg.
+ /// It is sometimes necessary to detach the register mask pointer from its
+ /// machine operand. This static method can be used for such detached bit
+ /// mask pointers. clobbersPhysReg - Returns true if this RegMask operand
+ /// clobbers PhysReg.
+ static bool clobbersPhysReg(const uint32_t *RegMask, unsigned PhysReg) {
// See TargetRegisterInfo.h.
assert(PhysReg < (1u << 30) && "Not a physical register");
- return !(Contents.RegMask[PhysReg / 32] & (1u << PhysReg % 32));
+ return !(RegMask[PhysReg / 32] & (1u << PhysReg % 32));
+ }
+
+ /// clobbersPhysReg - Returns true if this RegMask operand clobbers PhysReg.
+ bool clobbersPhysReg(unsigned PhysReg) const {
+ return clobbersPhysReg(getRegMask(), PhysReg);
}
/// getRegMask - Returns a bit mask of registers preserved by this RegMask
return i == e;
}
-// Test if a register mask clobbers PhysReg.
-static inline bool maskClobber(const uint32_t *Mask, unsigned PhysReg) {
- return !(Mask[PhysReg/32] & (1u << PhysReg%32));
-}
-
void InterferenceCache::Entry::update(unsigned MBBNum) {
SlotIndex Start, Stop;
tie(Start, Stop) = Indexes->getMBBRange(MBBNum);
SlotIndex Limit = BI->First.isValid() ? BI->First : Stop;
for (unsigned i = 0, e = RegMaskSlots.size();
i != e && RegMaskSlots[i] < Limit; ++i)
- if (maskClobber(RegMaskBits[i], PhysReg)) {
+ if (MachineOperand::clobbersPhysReg(RegMaskBits[i], PhysReg)) {
// Register mask i clobbers PhysReg before the LIU interference.
BI->First = RegMaskSlots[i];
break;
// Also check for register mask interference.
SlotIndex Limit = BI->Last.isValid() ? BI->Last : Start;
for (unsigned i = RegMaskSlots.size(); i && RegMaskSlots[i-1] > Limit; --i)
- if (maskClobber(RegMaskBits[i-1], PhysReg)) {
+ if (MachineOperand::clobbersPhysReg(RegMaskBits[i-1], PhysReg)) {
// Register mask i-1 clobbers PhysReg after the LIU interference.
// Model the regmask clobber as a dead def.
BI->Last = RegMaskSlots[i-1].getDeadSlot();