Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/tools/opt/AnalysisWrappers.cpp

@@ -1,73 +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/Analysis/CallGraph.h"
-#include "llvm/IR/CallSite.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Pass.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) {}
-    bool runOnModule(Module &M) override {
-      for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
-        if (!I->isDeclaration()) continue;
-
-        bool PrintedFn = false;
-        for (User *U : I->users()) {
-          Instruction *UI = dyn_cast<Instruction>(U);
-          if (!UI) continue;
-
-          CallSite CS(cast<Value>(UI));
-          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() << *UI;
-            break;
-          }
-        }
-      }
-
-      return false;
-    }
-
-    void getAnalysisUsage(AnalysisUsage &AU) const override {
-      AU.setPreservesAll();
-    }
-  };
-}
-
-char ExternalFunctionsPassedConstants::ID = 0;
-static RegisterPass<ExternalFunctionsPassedConstants>
-  P1("print-externalfnconstants",
-     "Print external fn callsites passed constants");