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Clarify that llvm.used can contain aliases.
Also add a check for llvm.used in the verifier and simplify clients now that they can assume they have a ConstantArray. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180019 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -326,8 +326,7 @@ void MachineModuleInfo::AnalyzeModule(const Module &M) {
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if (!GV || !GV->hasInitializer()) return;
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// Should be an array of 'i8*'.
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const ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
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if (InitList == 0) return;
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const ConstantArray *InitList = cast<ConstantArray>(GV->getInitializer());
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for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
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if (const Function *F =
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