[PATCH] D65802: [DAGCombiner] Fold br(xor(xor(x, y), 1)) as br(x == y)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:13526-13527
     if (Op0.getOpcode() != ISD::SETCC && Op1.getOpcode() != ISD::SETCC) {
       bool Equal = false;
-      if (isOneConstant(Op0) && Op0.hasOneUse() &&
+      if (isOneConstant(Op1) && Op0.hasOneUse() &&
           Op0.getOpcode() == ISD::XOR) {
----------------
```
// xor (xor %a, %b), -1
```


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D65802/new/

https://reviews.llvm.org/D65802