[PATCH] D134423: [AMDGPU] Fix vgpr2sgpr copy to scalar operands of buffer instructions.

[krishna chaitanya sankisa via Phabricator via llvm-commits]

skc7 added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp:922
+            const MachineOperand *soffsetMO =
+                TII->getNamedOperand(U, AMDGPU::OpName::soffset);
+
----------------
foad wrote:
> I don't understand why we need special cases for particular named operands. Why can't this be inferred from the operand's register class? @alex-t?
soffset and srsrc need to be scalar registers in mubuf/mtbuf instructions.. Check for use of COPY's result is done here for these operands.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134423/new/

https://reviews.llvm.org/D134423