change MCContext to always have an MCAsmInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98293 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index fa87238..b3c442e 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -242,7 +242,11 @@
   // it later.
   SrcMgr.setIncludeDirs(IncludeDirs);
   
-  MCContext Ctx;
+  
+  const MCAsmInfo *MAI = TheTarget->createAsmInfo(TripleName);
+  assert(MAI && "Unable to create target asm info!");
+  
+  MCContext Ctx(*MAI);
   formatted_raw_ostream *Out = GetOutputStream();
   if (!Out)
     return 1;
@@ -262,9 +266,6 @@
   OwningPtr<MCStreamer> Str;
   OwningPtr<TargetAsmBackend> TAB;
 
-  const MCAsmInfo *MAI = TheTarget->createAsmInfo(TripleName);
-  assert(MAI && "Unable to create target asm info!");
-
   if (FileType == OFT_AssemblyFile) {
     IP.reset(TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI, *Out));
     if (ShowEncoding)