[PATCH] D139874: [AMDGPU] Lower VGPR to physical SGPR COPY to S_MOV_B32 if VGPR contains the compile time constant

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp:853-855
+        Register TmpReg =
+          MRI->createVirtualRegister(&AMDGPU::SReg_32_XM0RegClass);
+        BuildMI(*MI.getParent(), MI, MI.getDebugLoc(),
----------------
Could also have 64-bit VGPR immediate. We have a pseudo for it


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139874/new/

https://reviews.llvm.org/D139874