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      1 //===-- Analysis.cpp ------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #include "llvm-c/Analysis.h"
     11 #include "llvm-c/Initialization.h"
     12 #include "llvm/IR/Module.h"
     13 #include "llvm/IR/Verifier.h"
     14 #include "llvm/InitializePasses.h"
     15 #include "llvm/PassRegistry.h"
     16 #include "llvm/Support/raw_ostream.h"
     17 #include <cstring>
     18 
     19 using namespace llvm;
     20 
     21 /// initializeAnalysis - Initialize all passes linked into the Analysis library.
     22 void llvm::initializeAnalysis(PassRegistry &Registry) {
     23   initializeAAEvalPass(Registry);
     24   initializeAliasSetPrinterPass(Registry);
     25   initializeBasicAAWrapperPassPass(Registry);
     26   initializeBlockFrequencyInfoWrapperPassPass(Registry);
     27   initializeBranchProbabilityInfoWrapperPassPass(Registry);
     28   initializeCallGraphWrapperPassPass(Registry);
     29   initializeCallGraphPrinterPass(Registry);
     30   initializeCallGraphViewerPass(Registry);
     31   initializeCostModelAnalysisPass(Registry);
     32   initializeCFGViewerPass(Registry);
     33   initializeCFGPrinterPass(Registry);
     34   initializeCFGOnlyViewerPass(Registry);
     35   initializeCFGOnlyPrinterPass(Registry);
     36   initializeCFLAAWrapperPassPass(Registry);
     37   initializeDependenceAnalysisPass(Registry);
     38   initializeDelinearizationPass(Registry);
     39   initializeDemandedBitsPass(Registry);
     40   initializeDivergenceAnalysisPass(Registry);
     41   initializeDominanceFrontierPass(Registry);
     42   initializeDomViewerPass(Registry);
     43   initializeDomPrinterPass(Registry);
     44   initializeDomOnlyViewerPass(Registry);
     45   initializePostDomViewerPass(Registry);
     46   initializeDomOnlyPrinterPass(Registry);
     47   initializePostDomPrinterPass(Registry);
     48   initializePostDomOnlyViewerPass(Registry);
     49   initializePostDomOnlyPrinterPass(Registry);
     50   initializeAAResultsWrapperPassPass(Registry);
     51   initializeGlobalsAAWrapperPassPass(Registry);
     52   initializeIVUsersPass(Registry);
     53   initializeInstCountPass(Registry);
     54   initializeIntervalPartitionPass(Registry);
     55   initializeLazyValueInfoPass(Registry);
     56   initializeLintPass(Registry);
     57   initializeLoopInfoWrapperPassPass(Registry);
     58   initializeMemDepPrinterPass(Registry);
     59   initializeMemDerefPrinterPass(Registry);
     60   initializeMemoryDependenceAnalysisPass(Registry);
     61   initializeModuleDebugInfoPrinterPass(Registry);
     62   initializeObjCARCAAWrapperPassPass(Registry);
     63   initializePostDominatorTreePass(Registry);
     64   initializeRegionInfoPassPass(Registry);
     65   initializeRegionViewerPass(Registry);
     66   initializeRegionPrinterPass(Registry);
     67   initializeRegionOnlyViewerPass(Registry);
     68   initializeRegionOnlyPrinterPass(Registry);
     69   initializeSCEVAAWrapperPassPass(Registry);
     70   initializeScalarEvolutionWrapperPassPass(Registry);
     71   initializeTargetTransformInfoWrapperPassPass(Registry);
     72   initializeTypeBasedAAWrapperPassPass(Registry);
     73   initializeScopedNoAliasAAWrapperPassPass(Registry);
     74 }
     75 
     76 void LLVMInitializeAnalysis(LLVMPassRegistryRef R) {
     77   initializeAnalysis(*unwrap(R));
     78 }
     79 
     80 void LLVMInitializeIPA(LLVMPassRegistryRef R) {
     81   initializeAnalysis(*unwrap(R));
     82 }
     83 
     84 LLVMBool LLVMVerifyModule(LLVMModuleRef M, LLVMVerifierFailureAction Action,
     85                           char **OutMessages) {
     86   raw_ostream *DebugOS = Action != LLVMReturnStatusAction ? &errs() : nullptr;
     87   std::string Messages;
     88   raw_string_ostream MsgsOS(Messages);
     89 
     90   LLVMBool Result = verifyModule(*unwrap(M), OutMessages ? &MsgsOS : DebugOS);
     91 
     92   // Duplicate the output to stderr.
     93   if (DebugOS && OutMessages)
     94     *DebugOS << MsgsOS.str();
     95 
     96   if (Action == LLVMAbortProcessAction && Result)
     97     report_fatal_error("Broken module found, compilation aborted!");
     98 
     99   if (OutMessages)
    100     *OutMessages = strdup(MsgsOS.str().c_str());
    101 
    102   return Result;
    103 }
    104 
    105 LLVMBool LLVMVerifyFunction(LLVMValueRef Fn, LLVMVerifierFailureAction Action) {
    106   LLVMBool Result = verifyFunction(
    107       *unwrap<Function>(Fn), Action != LLVMReturnStatusAction ? &errs()
    108                                                               : nullptr);
    109 
    110   if (Action == LLVMAbortProcessAction && Result)
    111     report_fatal_error("Broken function found, compilation aborted!");
    112 
    113   return Result;
    114 }
    115 
    116 void LLVMViewFunctionCFG(LLVMValueRef Fn) {
    117   Function *F = unwrap<Function>(Fn);
    118   F->viewCFG();
    119 }
    120 
    121 void LLVMViewFunctionCFGOnly(LLVMValueRef Fn) {
    122   Function *F = unwrap<Function>(Fn);
    123   F->viewCFGOnly();
    124 }
    125