Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/LinkAllPasses.h b/linux-x64/clang/include/llvm/LinkAllPasses.h
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+++ b/linux-x64/clang/include/llvm/LinkAllPasses.h
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+//===- llvm/LinkAllPasses.h ------------ Reference All Passes ---*- C++ -*-===//
+//
+//                      The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This header file pulls in all transformation and analysis passes for tools
+// like opt and bugpoint that need this functionality.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LINKALLPASSES_H
+#define LLVM_LINKALLPASSES_H
+
+#include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/AliasAnalysisEvaluator.h"
+#include "llvm/Analysis/AliasSetTracker.h"
+#include "llvm/Analysis/BasicAliasAnalysis.h"
+#include "llvm/Analysis/CFLAndersAliasAnalysis.h"
+#include "llvm/Analysis/CFLSteensAliasAnalysis.h"
+#include "llvm/Analysis/CallPrinter.h"
+#include "llvm/Analysis/DomPrinter.h"
+#include "llvm/Analysis/GlobalsModRef.h"
+#include "llvm/Analysis/IntervalPartition.h"
+#include "llvm/Analysis/Lint.h"
+#include "llvm/Analysis/Passes.h"
+#include "llvm/Analysis/PostDominators.h"
+#include "llvm/Analysis/RegionPass.h"
+#include "llvm/Analysis/RegionPrinter.h"
+#include "llvm/Analysis/ScalarEvolution.h"
+#include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
+#include "llvm/Analysis/ScopedNoAliasAA.h"
+#include "llvm/Analysis/TargetLibraryInfo.h"
+#include "llvm/Analysis/TypeBasedAliasAnalysis.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/IRPrintingPasses.h"
+#include "llvm/Support/Valgrind.h"
+#include "llvm/Transforms/IPO.h"
+#include "llvm/Transforms/IPO/AlwaysInliner.h"
+#include "llvm/Transforms/IPO/FunctionAttrs.h"
+#include "llvm/Transforms/Instrumentation.h"
+#include "llvm/Transforms/Instrumentation/BoundsChecking.h"
+#include "llvm/Transforms/ObjCARC.h"
+#include "llvm/Transforms/Scalar.h"
+#include "llvm/Transforms/Scalar/GVN.h"
+#include "llvm/Transforms/Utils.h"
+#include "llvm/Transforms/Utils/SymbolRewriter.h"
+#include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
+#include "llvm/Transforms/Vectorize.h"
+#include <cstdlib>
+
+namespace {
+  struct ForcePassLinking {
+    ForcePassLinking() {
+      // We must reference the passes in such a way that compilers will not
+      // delete it all as dead code, even with whole program optimization,
+      // yet is effectively a NO-OP. As the compiler isn't smart enough
+      // to know that getenv() never returns -1, this will do the job.
+      if (std::getenv("bar") != (char*) -1)
+        return;
+
+      (void) llvm::createAAEvalPass();
+      (void) llvm::createAggressiveDCEPass();
+      (void) llvm::createBitTrackingDCEPass();
+      (void) llvm::createArgumentPromotionPass();
+      (void) llvm::createAlignmentFromAssumptionsPass();
+      (void) llvm::createBasicAAWrapperPass();
+      (void) llvm::createSCEVAAWrapperPass();
+      (void) llvm::createTypeBasedAAWrapperPass();
+      (void) llvm::createScopedNoAliasAAWrapperPass();
+      (void) llvm::createBoundsCheckingLegacyPass();
+      (void) llvm::createBreakCriticalEdgesPass();
+      (void) llvm::createCallGraphDOTPrinterPass();
+      (void) llvm::createCallGraphViewerPass();
+      (void) llvm::createCFGSimplificationPass();
+      (void) llvm::createCFLAndersAAWrapperPass();
+      (void) llvm::createCFLSteensAAWrapperPass();
+      (void) llvm::createStructurizeCFGPass();
+      (void) llvm::createLibCallsShrinkWrapPass();
+      (void) llvm::createCalledValuePropagationPass();
+      (void) llvm::createConstantMergePass();
+      (void) llvm::createConstantPropagationPass();
+      (void) llvm::createCostModelAnalysisPass();
+      (void) llvm::createDeadArgEliminationPass();
+      (void) llvm::createDeadCodeEliminationPass();
+      (void) llvm::createDeadInstEliminationPass();
+      (void) llvm::createDeadStoreEliminationPass();
+      (void) llvm::createDependenceAnalysisWrapperPass();
+      (void) llvm::createDivergenceAnalysisPass();
+      (void) llvm::createDomOnlyPrinterPass();
+      (void) llvm::createDomPrinterPass();
+      (void) llvm::createDomOnlyViewerPass();
+      (void) llvm::createDomViewerPass();
+      (void) llvm::createGCOVProfilerPass();
+      (void) llvm::createPGOInstrumentationGenLegacyPass();
+      (void) llvm::createPGOInstrumentationUseLegacyPass();
+      (void) llvm::createPGOIndirectCallPromotionLegacyPass();
+      (void) llvm::createPGOMemOPSizeOptLegacyPass();
+      (void) llvm::createInstrProfilingLegacyPass();
+      (void) llvm::createFunctionImportPass();
+      (void) llvm::createFunctionInliningPass();
+      (void) llvm::createAlwaysInlinerLegacyPass();
+      (void) llvm::createGlobalDCEPass();
+      (void) llvm::createGlobalOptimizerPass();
+      (void) llvm::createGlobalsAAWrapperPass();
+      (void) llvm::createGuardWideningPass();
+      (void) llvm::createIPConstantPropagationPass();
+      (void) llvm::createIPSCCPPass();
+      (void) llvm::createInductiveRangeCheckEliminationPass();
+      (void) llvm::createIndVarSimplifyPass();
+      (void) llvm::createInstructionCombiningPass();
+      (void) llvm::createInternalizePass();
+      (void) llvm::createLCSSAPass();
+      (void) llvm::createLICMPass();
+      (void) llvm::createLoopSinkPass();
+      (void) llvm::createLazyValueInfoPass();
+      (void) llvm::createLoopExtractorPass();
+      (void) llvm::createLoopInterchangePass();
+      (void) llvm::createLoopPredicationPass();
+      (void) llvm::createLoopSimplifyPass();
+      (void) llvm::createLoopSimplifyCFGPass();
+      (void) llvm::createLoopStrengthReducePass();
+      (void) llvm::createLoopRerollPass();
+      (void) llvm::createLoopUnrollPass();
+      (void) llvm::createLoopUnswitchPass();
+      (void) llvm::createLoopVersioningLICMPass();
+      (void) llvm::createLoopIdiomPass();
+      (void) llvm::createLoopRotatePass();
+      (void) llvm::createLowerExpectIntrinsicPass();
+      (void) llvm::createLowerInvokePass();
+      (void) llvm::createLowerSwitchPass();
+      (void) llvm::createNaryReassociatePass();
+      (void) llvm::createObjCARCAAWrapperPass();
+      (void) llvm::createObjCARCAPElimPass();
+      (void) llvm::createObjCARCExpandPass();
+      (void) llvm::createObjCARCContractPass();
+      (void) llvm::createObjCARCOptPass();
+      (void) llvm::createPAEvalPass();
+      (void) llvm::createPromoteMemoryToRegisterPass();
+      (void) llvm::createDemoteRegisterToMemoryPass();
+      (void) llvm::createPruneEHPass();
+      (void) llvm::createPostDomOnlyPrinterPass();
+      (void) llvm::createPostDomPrinterPass();
+      (void) llvm::createPostDomOnlyViewerPass();
+      (void) llvm::createPostDomViewerPass();
+      (void) llvm::createReassociatePass();
+      (void) llvm::createRegionInfoPass();
+      (void) llvm::createRegionOnlyPrinterPass();
+      (void) llvm::createRegionOnlyViewerPass();
+      (void) llvm::createRegionPrinterPass();
+      (void) llvm::createRegionViewerPass();
+      (void) llvm::createSCCPPass();
+      (void) llvm::createSafeStackPass();
+      (void) llvm::createSROAPass();
+      (void) llvm::createSingleLoopExtractorPass();
+      (void) llvm::createStripSymbolsPass();
+      (void) llvm::createStripNonDebugSymbolsPass();
+      (void) llvm::createStripDeadDebugInfoPass();
+      (void) llvm::createStripDeadPrototypesPass();
+      (void) llvm::createTailCallEliminationPass();
+      (void) llvm::createJumpThreadingPass();
+      (void) llvm::createUnifyFunctionExitNodesPass();
+      (void) llvm::createInstCountPass();
+      (void) llvm::createConstantHoistingPass();
+      (void) llvm::createCodeGenPreparePass();
+      (void) llvm::createEntryExitInstrumenterPass();
+      (void) llvm::createPostInlineEntryExitInstrumenterPass();
+      (void) llvm::createEarlyCSEPass();
+      (void) llvm::createGVNHoistPass();
+      (void) llvm::createMergedLoadStoreMotionPass();
+      (void) llvm::createGVNPass();
+      (void) llvm::createNewGVNPass();
+      (void) llvm::createMemCpyOptPass();
+      (void) llvm::createLoopDeletionPass();
+      (void) llvm::createPostDomTree();
+      (void) llvm::createInstructionNamerPass();
+      (void) llvm::createMetaRenamerPass();
+      (void) llvm::createPostOrderFunctionAttrsLegacyPass();
+      (void) llvm::createReversePostOrderFunctionAttrsPass();
+      (void) llvm::createMergeFunctionsPass();
+      (void) llvm::createMergeICmpsPass();
+      (void) llvm::createExpandMemCmpPass();
+      std::string buf;
+      llvm::raw_string_ostream os(buf);
+      (void) llvm::createPrintModulePass(os);
+      (void) llvm::createPrintFunctionPass(os);
+      (void) llvm::createPrintBasicBlockPass(os);
+      (void) llvm::createModuleDebugInfoPrinterPass();
+      (void) llvm::createPartialInliningPass();
+      (void) llvm::createLintPass();
+      (void) llvm::createSinkingPass();
+      (void) llvm::createLowerAtomicPass();
+      (void) llvm::createCorrelatedValuePropagationPass();
+      (void) llvm::createMemDepPrinter();
+      (void) llvm::createInstructionSimplifierPass();
+      (void) llvm::createLoopVectorizePass();
+      (void) llvm::createSLPVectorizerPass();
+      (void) llvm::createLoadStoreVectorizerPass();
+      (void) llvm::createPartiallyInlineLibCallsPass();
+      (void) llvm::createScalarizerPass();
+      (void) llvm::createSeparateConstOffsetFromGEPPass();
+      (void) llvm::createSpeculativeExecutionPass();
+      (void) llvm::createSpeculativeExecutionIfHasBranchDivergencePass();
+      (void) llvm::createRewriteSymbolsPass();
+      (void) llvm::createStraightLineStrengthReducePass();
+      (void) llvm::createMemDerefPrinter();
+      (void) llvm::createMustExecutePrinter();
+      (void) llvm::createFloat2IntPass();
+      (void) llvm::createEliminateAvailableExternallyPass();
+      (void) llvm::createScalarizeMaskedMemIntrinPass();
+
+      (void)new llvm::IntervalPartition();
+      (void)new llvm::ScalarEvolutionWrapperPass();
+      llvm::Function::Create(nullptr, llvm::GlobalValue::ExternalLinkage)->viewCFGOnly();
+      llvm::RGPassManager RGM;
+      llvm::TargetLibraryInfoImpl TLII;
+      llvm::TargetLibraryInfo TLI(TLII);
+      llvm::AliasAnalysis AA(TLI);
+      llvm::AliasSetTracker X(AA);
+      X.add(nullptr, 0, llvm::AAMDNodes()); // for -print-alias-sets
+      (void) llvm::AreStatisticsEnabled();
+      (void) llvm::sys::RunningOnValgrind();
+    }
+  } ForcePassLinking; // Force link by creating a global definition.
+}
+
+#endif