Remove dead file (was only used by the C backend)

llvm-svn: 232397

llvm/include/llvm/Analysis/ConstantsScanner.h

@@ -1,94 +0,0 @@
-//==- llvm/Analysis/ConstantsScanner.h - Iterate over constants -*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This class implements an iterator to walk through the constants referenced by
-// a method.  This is used by the Bitcode & Assembly writers to build constant
-// pools.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_ANALYSIS_CONSTANTSSCANNER_H
-#define LLVM_ANALYSIS_CONSTANTSSCANNER_H
-
-#include "llvm/IR/InstIterator.h"
-
-namespace llvm {
-
-class Constant;
-
-class constant_iterator : public std::iterator<std::forward_iterator_tag,
-                                               const Constant, ptrdiff_t> {
-  const_inst_iterator InstI;                // Method instruction iterator
-  unsigned OpIdx;                           // Operand index
-
-  bool isAtConstant() const {
-    assert(!InstI.atEnd() && OpIdx < InstI->getNumOperands() &&
-           "isAtConstant called with invalid arguments!");
-    return isa<Constant>(InstI->getOperand(OpIdx));
-  }
-
-public:
-  constant_iterator(const Function *F) : InstI(inst_begin(F)), OpIdx(0) {
-    // Advance to first constant... if we are not already at constant or end
-    if (InstI != inst_end(F) &&                            // InstI is valid?
-        (InstI->getNumOperands() == 0 || !isAtConstant())) // Not at constant?
-      operator++();
-  }
-
-  constant_iterator(const Function *F, bool) // end ctor
-      : InstI(inst_end(F)),
-        OpIdx(0) {}
-
-  bool operator==(const constant_iterator &x) const {
-    return OpIdx == x.OpIdx && InstI == x.InstI;
-  }
-  bool operator!=(const constant_iterator &x) const { return !(*this == x); }
-
-  pointer operator*() const {
-    assert(isAtConstant() && "Dereferenced an iterator at the end!");
-    return cast<Constant>(InstI->getOperand(OpIdx));
-  }
-  pointer operator->() const { return **this; }
-
-  constant_iterator &operator++() { // Preincrement implementation
-    ++OpIdx;
-    do {
-      unsigned NumOperands = InstI->getNumOperands();
-      while (OpIdx < NumOperands && !isAtConstant()) {
-        ++OpIdx;
-      }
-
-      if (OpIdx < NumOperands) return *this;  // Found a constant!
-      ++InstI;
-      OpIdx = 0;
-    } while (!InstI.atEnd());
-
-    return *this;  // At the end of the method
-  }
-
-  onstant_iterator operator++(int) { // Postincrement
-    constant_iterator tmp = *this;
-    ++*this;
-    return tmp;
-  }
-
-  bool atEnd() const { return InstI.atEnd(); }
-};
-
-inline constant_iterator constant_begin(const Function *F) {
-  return constant_iterator(F);
-}
-
-inline constant_iterator constant_end(const Function *F) {
-  return constant_iterator(F, true);
-}
-
-} // End llvm namespace
-
-#endif