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Differential D124193 Diff 424259 llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp

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llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp

Show First 20 Lines • Show All 695 Lines • ▼ Show 20 LinesBitVector SIRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
} }
// On GFX908, in order to guarantee copying between AGPRs, we need a scratch // On GFX908, in order to guarantee copying between AGPRs, we need a scratch
// VGPR available at all times. // VGPR available at all times.
if (ST.hasMAIInsts() && !ST.hasGFX90AInsts()) { if (ST.hasMAIInsts() && !ST.hasGFX90AInsts()) {
reserveRegisterTuples(Reserved, MFI->getVGPRForAGPRCopy()); reserveRegisterTuples(Reserved, MFI->getVGPRForAGPRCopy());
} }
for (Register Reg : MFI->WWMReservedRegs) for (Register Reg : MFI->getWWMReservedRegs())
reserveRegisterTuples(Reserved, Reg); reserveRegisterTuples(Reserved, Reg);
// FIXME: Stop using reserved registers for this. // FIXME: Stop using reserved registers for this.
for (MCPhysReg Reg : MFI->getAGPRSpillVGPRs()) for (MCPhysReg Reg : MFI->getAGPRSpillVGPRs())
reserveRegisterTuples(Reserved, Reg); reserveRegisterTuples(Reserved, Reg);
for (MCPhysReg Reg : MFI->getVGPRSpillAGPRs()) for (MCPhysReg Reg : MFI->getVGPRSpillAGPRs())
reserveRegisterTuples(Reserved, Reg); reserveRegisterTuples(Reserved, Reg);
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