PVS-Studio warning V501 for Clang

static SDValue PerformSELECTCombine(....)
{
  ...
  SDValue LHS = N->getOperand(1);
  SDValue RHS = N->getOperand(2);

  ...
  if (!UnsafeFPMath &&
      !DAG.isKnownNeverZero(LHS) &&
      !DAG.isKnownNeverZero(RHS))
  ...
  if (!UnsafeFPMath &&
      !DAG.isKnownNeverZero(LHS) &&
      !DAG.isKnownNeverZero(LHS))
  ...
}

Maybe RHS should be used in the last line, not LHS.

This suspicious code was found in Clang project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions '!DAG.isKnownNeverZero (LHS)' to the left and to the right of the '&&' operator. LLVMX86CodeGen x86isellowering.cpp 11635

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/