[PATCH] D71386: [AMDGPU] Remove unnecessary v_mov from a register to itself in WQM lowering.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp:877-878
+  for (MachineInstr *MI : LowerToCopyInstrs) {
+    for (unsigned i = MI->getNumExplicitOperands() - 1; i > 1; i--)
+      MI->RemoveOperand(i);
+
----------------
These should only ever have been moves to begin with? Just remove the one exec operand?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71386/new/

https://reviews.llvm.org/D71386