[TargetLowering] hasAndNotCompare should be checking for X, not Y (#146935)
Y is the one being bitwise-not, so it should not be passed, as the other
one should be passed instead.
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 000f8cc..49baea2 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -4247,7 +4247,7 @@
// (X | Y) == Y
// (X | Y) != Y
SDValue X;
- if (sd_match(N0, m_Or(m_Value(X), m_Specific(N1))) && hasAndNotCompare(N1)) {
+ if (sd_match(N0, m_Or(m_Value(X), m_Specific(N1))) && hasAndNotCompare(X)) {
// If the target supports an 'and-not' or 'and-complement' logic operation,
// try to use that to make a comparison operation more efficient.
