Commit 47dbcbd8 authored by Florian Hahn's avatar Florian Hahn
Browse files

Revert [GlobalOpt] Pass DTU to removeUnreachableBlocks instead of recomputing. 

This breaks http://lab.llvm.org:8011/builders/sanitizer-windows/builds/52310

This reverts r373430 (git commit 70f70035)

llvm-svn: 373432
parent cbefc36f

llvm/lib/Transforms/IPO/GlobalOpt.cpp

+7 −3
Original line number Diff line number Diff line
@@ -2285,10 +2285,14 @@ OptimizeFunctions(Module &M, 
    // So, remove unreachable blocks from the function, because a) there's

    // no point in analyzing them and b) GlobalOpt should otherwise grow

    // some more complicated logic to break these cycles.

    // Removing unreachable blocks might invalidate the dominator so we

    // recalculate it.

    if (!F->isDeclaration()) {

      if (removeUnreachableBlocks(*F)) {

        auto &DT = LookupDomTree(*F);

      DomTreeUpdater DTU(DT, DomTreeUpdater::UpdateStrategy::Lazy);

      Changed |= removeUnreachableBlocks(*F, nullptr, &DTU);

        DT.recalculate(*F);

        Changed = true;

      }

    }



    Changed |= processGlobal(*F, GetTLI, LookupDomTree);