forked from OSchip/llvm-project
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 70f7003548
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llvm-svn: 373432
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@ -2285,10 +2285,14 @@ OptimizeFunctions(Module &M,
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// So, remove unreachable blocks from the function, because a) there's
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// no point in analyzing them and b) GlobalOpt should otherwise grow
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// some more complicated logic to break these cycles.
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// Removing unreachable blocks might invalidate the dominator so we
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// recalculate it.
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if (!F->isDeclaration()) {
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auto &DT = LookupDomTree(*F);
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DomTreeUpdater DTU(DT, DomTreeUpdater::UpdateStrategy::Lazy);
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Changed |= removeUnreachableBlocks(*F, nullptr, &DTU);
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if (removeUnreachableBlocks(*F)) {
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auto &DT = LookupDomTree(*F);
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DT.recalculate(*F);
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Changed = true;
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}
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}
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Changed |= processGlobal(*F, GetTLI, LookupDomTree);
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