Transforms/InstCombine/InstructionCombining.cpp

839 /// the multiplication is known not to overflow then NoSignedWrap is set.
840 Value *InstCombiner::Descale(Value *Val, APInt Scale, bool &NoSignedWrap) {
847     NoSignedWrap = true;
899       NoSignedWrap = true;
907         NoSignedWrap = BO->hasNoSignedWrap();
908         if (RequireNoSignedWrap && !NoSignedWrap)
946         NoSignedWrap = BO->hasNoSignedWrap();
947         if (RequireNoSignedWrap && !NoSignedWrap)
1025   // expression.  NoSignedWrap is 'true' if multiplying Op by Scale is known
1043   // our way up, having NoSignedWrap 'true' means that the descaled value at the
1052       NoSignedWrap &= OpNoSignedWrap;
1053       if (NoSignedWrap != OpNoSignedWrap) {
1054         BO->setHasNoSignedWrap(NoSignedWrap);
1061       NoSignedWrap = false;
1063     assert((Ancestor->getOpcode() != Instruction::SExt || NoSignedWrap) &&