Don't fetch pointers from a InMemoryStruct.

InMemoryStruct is extremely dangerous as it returns data from an internal
buffer when the endiannes doesn't match. This should fix the tests on big
endian hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178875 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-objdump/MachODump.cpp b/tools/llvm-objdump/MachODump.cpp
index c324ff1..e9d2b3b 100644
--- a/tools/llvm-objdump/MachODump.cpp
+++ b/tools/llvm-objdump/MachODump.cpp
@@ -337,10 +337,9 @@
         SectName != "__text")
       continue; // Skip non-text sections
 
-    StringRef SegmentName;
     DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
-    if (MachOOF->getSectionFinalSegmentName(DR, SegmentName) ||
-        SegmentName != "__TEXT")
+    StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
+    if (SegmentName != "__TEXT")
       continue;
 
     // Insert the functions from the function starts segment into our map.
diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp
index 7832cf0..9a36e82 100644
--- a/tools/llvm-objdump/llvm-objdump.cpp
+++ b/tools/llvm-objdump/llvm-objdump.cpp
@@ -257,8 +257,7 @@
     StringRef SegmentName = "";
     if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) {
       DataRefImpl DR = i->getRawDataRefImpl();
-      if (error(MachO->getSectionFinalSegmentName(DR, SegmentName)))
-        break;
+      SegmentName = MachO->getSectionFinalSegmentName(DR);
     }
     StringRef name;
     if (error(i->getName(name))) break;
@@ -593,10 +592,8 @@
         outs() << "*UND*";
       else {
         if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(o)) {
-          StringRef SegmentName;
           DataRefImpl DR = Section->getRawDataRefImpl();
-          if (error(MachO->getSectionFinalSegmentName(DR, SegmentName)))
-            SegmentName = "";
+          StringRef SegmentName = MachO->getSectionFinalSegmentName(DR);
           outs() << SegmentName << ",";
         }
         StringRef SectionName;