AMDGPU/GlobalISel: Don't try to lower hull shaders

[tstellar]

Summary

The AMDGPU_HS calling convention is not supported yet.

[nhaehnle]

One typo, LGTM apart from that.

lib/Target/AMDGPU/AMDGPUCallLowering.cpp

91 ↗

(On Diff #144232)

AMDGP*U*_HS

llvm/trunk/lib/Target/AMDGPU/AMDGPUCallLowering.cpp

MachineMemOperand *MMO =
                                        TypeSize, Align);
 
   MIRBuilder.buildLoad(DstReg, PtrReg, *MMO);
 }
 
 bool AMDGPUCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
                                               const Function &F,
                                               ArrayRef<unsigned> VRegs) const {
-  // AMDGPU_GS is not supported yet.
-  if (F.getCallingConv() == CallingConv::AMDGPU_GS)
+  // AMDGPU_GS and AMDGP_HS are not supported yet.
+  if (F.getCallingConv() == CallingConv::AMDGPU_GS ||
+      F.getCallingConv() == CallingConv::AMDGPU_HS)
     return false;
 
   MachineFunction &MF = MIRBuilder.getMF();
   const SISubtarget *Subtarget = static_cast<const SISubtarget *>(&MF.getSubtarget());
   MachineRegisterInfo &MRI = MF.getRegInfo();
   SIMachineFunctionInfo *Info = MF.getInfo<SIMachineFunctionInfo>();
   const SIRegisterInfo *TRI = MF.getSubtarget<SISubtarget>().getRegisterInfo();
   const DataLayout &DL = F.getParent()->getDataLayout();