[PATCH] D102854: [RISCV] Optimize or/xor with immediate in the zbs extension

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/lib/Target/RISCV/RISCVInstrInfoB.td:130
+  if (Subtarget->is64Bit())
+    return isPowerOf2_64(I);
+  else
----------------
I think it's ok to use isPowerOf2_64 even for RV32. I was zero extended so the upper bits are 0.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D102854/new/

https://reviews.llvm.org/D102854