[llvm] r180194 - Revert r180189.

[Rafael Espindola]

Author: rafael
Date: Wed Apr 24 11:10:49 2013
New Revision: 180194

URL: http://llvm.org/viewvc/llvm-project?rev=180194&view=rev
Log:
Revert r180189.

This should bring the ppc bots back. I will try to write a test that would
have found the problem on a little endian system too.

Modified:
    llvm/trunk/lib/Object/MachOObjectFile.cpp

Modified: llvm/trunk/lib/Object/MachOObjectFile.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/MachOObjectFile.cpp?rev=180194&r1=180193&r2=180194&view=diff
==============================================================================
--- llvm/trunk/lib/Object/MachOObjectFile.cpp (original)
+++ llvm/trunk/lib/Object/MachOObjectFile.cpp Wed Apr 24 11:10:49 2013
@@ -769,47 +769,31 @@ MachOObjectFile::sectionContainsSymbol(D
 }
 
 relocation_iterator MachOObjectFile::getSectionRelBegin(DataRefImpl Sec) const {
-  uint32_t Offset;
-  if (is64Bit()) {
-    macho::Section64 Sect = getSection64(Sec);
-    Offset = Sect.RelocationTableOffset;
-  } else {
-    macho::Section Sect = getSection(Sec);
-    Offset = Sect.RelocationTableOffset;
-  }
-
-  DataRefImpl Ret;
-  Ret.p = reinterpret_cast<uintptr_t>(getPtr(this, Offset));
-  return relocation_iterator(RelocationRef(Ret, this));
+  DataRefImpl ret;
+  ret.d.b = Sec.d.a;
+  return relocation_iterator(RelocationRef(ret, this));
 }
 
 relocation_iterator
 MachOObjectFile::getSectionRelEnd(DataRefImpl Sec) const {
-  uint32_t Offset;
-  uint32_t Num;
+  uint32_t LastReloc;
   if (is64Bit()) {
     macho::Section64 Sect = getSection64(Sec);
-    Offset = Sect.RelocationTableOffset;
-    Num = Sect.NumRelocationTableEntries;
+    LastReloc = Sect.NumRelocationTableEntries;
   } else {
     macho::Section Sect = getSection(Sec);
-    Offset = Sect.RelocationTableOffset;
-    Num = Sect.NumRelocationTableEntries;
+    LastReloc = Sect.NumRelocationTableEntries;
   }
 
-  const macho::RelocationEntry *P =
-    reinterpret_cast<const macho::RelocationEntry*>(getPtr(this, Offset));
-
   DataRefImpl Ret;
-  Ret.p = reinterpret_cast<uintptr_t>(P + Num);
+  Ret.d.a = LastReloc;
+  Ret.d.b = Sec.d.a;
   return relocation_iterator(RelocationRef(Ret, this));
 }
 
-error_code MachOObjectFile::getRelocationNext(DataRefImpl Rel,
-                                              RelocationRef &Res) const {
-  const macho::RelocationEntry *P =
-    reinterpret_cast<const macho::RelocationEntry *>(Rel.p);
-  Rel.p = reinterpret_cast<uintptr_t>(P + 1);
+  error_code MachOObjectFile::getRelocationNext(DataRefImpl Rel,
+                                                RelocationRef &Res) const {
+  ++Rel.d.a;
   Res = RelocationRef(Rel, this);
   return object_error::success;
 }
@@ -1402,8 +1386,19 @@ MachOObjectFile::getLinkeditDataLoadComm
 
 macho::RelocationEntry
 MachOObjectFile::getRelocation(DataRefImpl Rel) const {
-  const char *P = reinterpret_cast<const char *>(Rel.p);
-  return getStruct<macho::RelocationEntry>(this, P);
+  uint32_t RelOffset;
+  DataRefImpl Sec;
+  Sec.d.a = Rel.d.b;
+  if (is64Bit()) {
+    macho::Section64 Sect = getSection64(Sec);
+    RelOffset = Sect.RelocationTableOffset;
+  } else {
+    macho::Section Sect = getSection(Sec);
+    RelOffset = Sect.RelocationTableOffset;
+  }
+
+  uint64_t Offset = RelOffset + Rel.d.a * sizeof(macho::RelocationEntry);
+  return getStruct<macho::RelocationEntry>(this, getPtr(this, Offset));
 }
 
 macho::Header MachOObjectFile::getHeader() const {