Don't relax org or align. They change size as the relaxation happens, but they

[oota-llvm.git] / lib / Support / Twine.cpp

diff --git a/lib/Support/Twine.cpp b/lib/Support/Twine.cpp
index 093e29de96a1d71f85e6b07bc727861774ff9daa..75cea2961a9dc68d8faccbbd4a6e99681c69283f 100644 (file)
--- a/lib/Support/Twine.cpp
+++ b/lib/Support/Twine.cpp
@@ -30,6 +30,26 @@ StringRef Twine::toStringRef(SmallVectorImpl<char> &Out) const {
   return StringRef(Out.data(), Out.size());
 }
 
+StringRef Twine::toNullTerminatedStringRef(SmallVectorImpl<char> &Out) const {
+  if (isUnary()) {
+    switch (getLHSKind()) {
+    case CStringKind:
+      // Already null terminated, yay!
+      return StringRef(static_cast<const char*>(LHS));
+    case StdStringKind: {
+        const std::string *str = static_cast<const std::string*>(LHS);
+        return StringRef(str->c_str(), str->size());
+      }
+    default:
+      break;
+    }
+  }
+  toVector(Out);
+  Out.push_back(0);
+  Out.pop_back();
+  return StringRef(Out.data(), Out.size());
+}
+
 void Twine::printOneChild(raw_ostream &OS, const void *Ptr,
                           NodeKind Kind) const {
   switch (Kind) {