Make a convenient helper for printing offsets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59872 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index a641d0b..bfc2e35 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1526,6 +1526,13 @@
   }
 }
 
+void AsmPrinter::printOffset(int64_t Offset) const {
+  if (Offset > 0)
+    O << '+' << Offset;
+  else if (Offset < 0)
+    O << Offset;
+}
+
 GCMetadataPrinter *AsmPrinter::GetOrCreateGCPrinter(GCStrategy *S) {
   if (!S->usesMetadata())
     return 0;