Commit 882ee7fb authored by Eli Friedman's avatar Eli Friedman
Browse files

Fix buildbot regression from 9c4baf51. 

Apparently ScalarEvolution::isImpliedCond tries to truncate a pointer in
some obscure cases. Guard the code with a check for pointers.
parent db4c2582

llvm/lib/Analysis/ScalarEvolution.cpp

+1 −1
Original line number Diff line number Diff line
@@ -10581,7 +10581,7 @@ bool ScalarEvolution::isImpliedCond(ICmpInst::Predicate Pred, const SCEV *LHS, 
    // For unsigned and equality predicates, try to prove that both found

    // operands fit into narrow unsigned range. If so, try to prove facts in

    // narrow types.

    if (!CmpInst::isSigned(FoundPred)) {

    if (!CmpInst::isSigned(FoundPred) && !FoundLHS->getType()->isPointerTy()) {

      auto *NarrowType = LHS->getType();

      auto *WideType = FoundLHS->getType();

      auto BitWidth = getTypeSizeInBits(NarrowType);