abort with an assert instead of a cerr to get line#


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48199 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 3c12fa1..762a7bc 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -1499,7 +1499,7 @@
     return;
   }
   
-  cerr << "Not yet supported!";
+  assert(0 && "Not yet supported!");
   abort();
 }