diff options
Diffstat (limited to 'contrib/llvm/tools/opt/AnalysisWrappers.cpp')
-rw-r--r-- | contrib/llvm/tools/opt/AnalysisWrappers.cpp | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/contrib/llvm/tools/opt/AnalysisWrappers.cpp b/contrib/llvm/tools/opt/AnalysisWrappers.cpp deleted file mode 100644 index a2b57bb..0000000 --- a/contrib/llvm/tools/opt/AnalysisWrappers.cpp +++ /dev/null @@ -1,94 +0,0 @@ -//===- AnalysisWrappers.cpp - Wrappers around non-pass analyses -----------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file defines pass wrappers around LLVM analyses that don't make sense to -// be passes. It provides a nice standard pass interface to these classes so -// that they can be printed out by analyze. -// -// These classes are separated out of analyze.cpp so that it is more clear which -// code is the integral part of the analyze tool, and which part of the code is -// just making it so more passes are available. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Module.h" -#include "llvm/Pass.h" -#include "llvm/Support/CallSite.h" -#include "llvm/Analysis/CallGraph.h" -#include "llvm/Support/raw_ostream.h" -using namespace llvm; - -namespace { - /// ExternalFunctionsPassedConstants - This pass prints out call sites to - /// external functions that are called with constant arguments. This can be - /// useful when looking for standard library functions we should constant fold - /// or handle in alias analyses. - struct ExternalFunctionsPassedConstants : public ModulePass { - static char ID; // Pass ID, replacement for typeid - ExternalFunctionsPassedConstants() : ModulePass(ID) {} - virtual bool runOnModule(Module &M) { - for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) { - if (!I->isDeclaration()) continue; - - bool PrintedFn = false; - for (Value::use_iterator UI = I->use_begin(), E = I->use_end(); - UI != E; ++UI) { - Instruction *User = dyn_cast<Instruction>(*UI); - if (!User) continue; - - CallSite CS(cast<Value>(User)); - if (!CS) continue; - - for (CallSite::arg_iterator AI = CS.arg_begin(), - E = CS.arg_end(); AI != E; ++AI) { - if (!isa<Constant>(*AI)) continue; - - if (!PrintedFn) { - errs() << "Function '" << I->getName() << "':\n"; - PrintedFn = true; - } - errs() << *User; - break; - } - } - } - - return false; - } - - virtual void getAnalysisUsage(AnalysisUsage &AU) const { - AU.setPreservesAll(); - } - }; -} - -char ExternalFunctionsPassedConstants::ID = 0; -static RegisterPass<ExternalFunctionsPassedConstants> - P1("print-externalfnconstants", - "Print external fn callsites passed constants"); - -namespace { - struct CallGraphPrinter : public ModulePass { - static char ID; // Pass ID, replacement for typeid - CallGraphPrinter() : ModulePass(ID) {} - - virtual void getAnalysisUsage(AnalysisUsage &AU) const { - AU.setPreservesAll(); - AU.addRequiredTransitive<CallGraph>(); - } - virtual bool runOnModule(Module &M) { - getAnalysis<CallGraph>().print(errs(), &M); - return false; - } - }; -} - -char CallGraphPrinter::ID = 0; -static RegisterPass<CallGraphPrinter> - P2("print-callgraph", "Print a call graph"); |