Index: lib/Transforms/Scalar/LICM.cpp =================================================================== --- lib/Transforms/Scalar/LICM.cpp +++ lib/Transforms/Scalar/LICM.cpp @@ -1543,11 +1543,6 @@ AliasAnalysis *AA) { std::unique_ptr CurAST; SmallVector RecomputeLoops; - auto mergeLoop = [&CurAST](Loop *L) { - // Loop over the body of this loop, looking for calls, invokes, and stores. - for (BasicBlock *BB : L->blocks()) - CurAST->add(*BB); // Incorporate the specified basic block - }; for (Loop *InnerL : L->getSubLoops()) { auto MapI = LoopToAliasSetMap.find(InnerL); // If the AST for this inner loop is missing it may have been merged into @@ -1574,10 +1569,13 @@ // Add everything from the sub loops that are no longer directly available. for (Loop *InnerL : RecomputeLoops) - mergeLoop(InnerL); + for (BasicBlock *BB : InnerL->blocks()) + CurAST->add(*BB); - // And merge in this loop. - mergeLoop(L); + // And merge in this loop (without anything from inner loops). + for (BasicBlock *BB : L->blocks()) + if (LI->getLoopFor(BB) == L) + CurAST->add(*BB); return CurAST; }