From 71dc2e6f45a5b00dec24a26ab2864690cbba5ea4 Mon Sep 17 00:00:00 2001
From: Ahmed Bougacha <ahmed.bougacha@gmail.com>
Date: Tue, 23 Jul 2013 17:44:11 +0000
Subject: Revert "Remove use of asymmetric std::lower_bound comparator."

This reverts commit r185676.
Originally done because of VS 2008.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186969 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/MC/MCModule.cpp | 30 ++++++++++++------------------
 1 file changed, 12 insertions(+), 18 deletions(-)

(limited to 'lib')

diff --git a/lib/MC/MCModule.cpp b/lib/MC/MCModule.cpp
index b09fbb51c8..5890b4bd02 100644
--- a/lib/MC/MCModule.cpp
+++ b/lib/MC/MCModule.cpp
@@ -14,19 +14,8 @@
 
 using namespace llvm;
 
-static bool AtomComp(const MCAtom *LHS, const MCAtom *RHS) {
-  return LHS->getEndAddr() < RHS->getEndAddr();
-}
-
-MCModule::const_atom_iterator MCModule::atom_lower_bound(uint64_t Addr) const {
-  // This is a dummy atom, because VS 2008 doesn't like asymmetric comparators.
-  MCDataAtom AddrAtom(0, Addr, Addr);
-  return std::lower_bound(atom_begin(), atom_end(), &AddrAtom, AtomComp);
-}
-
-MCModule::atom_iterator MCModule::atom_lower_bound(uint64_t Addr) {
-  MCDataAtom AddrAtom(0, Addr, Addr);
-  return std::lower_bound(atom_begin(), atom_end(), &AddrAtom, AtomComp);
+static bool AtomComp(const MCAtom *L, uint64_t Addr) {
+  return L->getEndAddr() < Addr;
 }
 
 void MCModule::map(MCAtom *NewAtom) {
@@ -35,7 +24,8 @@ void MCModule::map(MCAtom *NewAtom) {
   assert(Begin <= NewAtom->End && "Creating MCAtom with endpoints reversed?");
 
   // Check for atoms already covering this range.
-  AtomListTy::iterator I = atom_lower_bound(Begin);
+  AtomListTy::iterator I = std::lower_bound(atom_begin(), atom_end(),
+                                            Begin, AtomComp);
   assert((I == atom_end() || (*I)->getBeginAddr() > NewAtom->End)
          && "Offset range already occupied!");
 
@@ -58,13 +48,15 @@ MCDataAtom *MCModule::createDataAtom(uint64_t Begin, uint64_t End) {
 // remap - Update the interval mapping for an atom.
 void MCModule::remap(MCAtom *Atom, uint64_t NewBegin, uint64_t NewEnd) {
   // Find and erase the old mapping.
-  AtomListTy::iterator I = atom_lower_bound(Atom->Begin);
+  AtomListTy::iterator I = std::lower_bound(atom_begin(), atom_end(),
+                                            Atom->Begin, AtomComp);
   assert(I != atom_end() && "Atom offset not found in module!");
   assert(*I == Atom && "Previous atom mapping was invalid!");
   Atoms.erase(I);
 
   // Insert the new mapping.
-  AtomListTy::iterator NewI = atom_lower_bound(NewBegin);
+  AtomListTy::iterator NewI = std::lower_bound(atom_begin(), atom_end(),
+                                               NewBegin, AtomComp);
   Atoms.insert(NewI, Atom);
 
   // Update the atom internal bounds.
@@ -73,14 +65,16 @@ void MCModule::remap(MCAtom *Atom, uint64_t NewBegin, uint64_t NewEnd) {
 }
 
 const MCAtom *MCModule::findAtomContaining(uint64_t Addr) const {
-  AtomListTy::const_iterator I = atom_lower_bound(Addr);
+  AtomListTy::const_iterator I = std::lower_bound(atom_begin(), atom_end(),
+                                                  Addr, AtomComp);
   if (I != atom_end() && (*I)->getBeginAddr() <= Addr)
     return *I;
   return 0;
 }
 
 MCAtom *MCModule::findAtomContaining(uint64_t Addr) {
-  AtomListTy::iterator I = atom_lower_bound(Addr);
+  AtomListTy::iterator I = std::lower_bound(atom_begin(), atom_end(),
+                                            Addr, AtomComp);
   if (I != atom_end() && (*I)->getBeginAddr() <= Addr)
     return *I;
   return 0;
-- 
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