[llvm] [NVPTX] Teach NVPTX about predicates (PR #67468)

[Fraser Cormack via llvm-commits]

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@@ -58,12 +58,16 @@ void NVPTXFrameLowering::emitPrologue(MachineFunction &MF,
       MBBI = BuildMI(MBB, MBBI, dl,
                      MF.getSubtarget().getInstrInfo()->get(CvtaLocalOpcode),
                      NRI->getFrameRegister(MF))
-                 .addReg(NRI->getFrameLocalRegister(MF));
+                 .addReg(NRI->getFrameLocalRegister(MF))
+                 .addReg(0)
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frasercrmck wrote:

This should be `NVPTX::NoRegister` in any place we're adding the `0` register.

https://github.com/llvm/llvm-project/pull/67468