BitcodeReader: Avoid non-moving std::piecewise_construct from r267296

Not exactly sure why the host tries to use a copy constructor here, but
it's easy enough to work around it.

http://lab.llvm.org:8011/builders/lldb-amd64-ninja-freebsd11/builds/6227

llvm-svn: 267298

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index ecd05c245d7..dc8a904921d 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1215,9 +1215,9 @@ Metadata *BitcodeReaderMetadataList::upgradeTypeRefArray(Metadata *MaybeTuple) {
 
   // Create and return a placeholder to use for now.  Eventually
   // resolveTypeRefArrays() will be resolve this forward reference.
-  OldTypeRefs.Arrays.emplace_back(
-      std::piecewise_construct, std::make_tuple(Tuple),
-      std::make_tuple(MDTuple::getTemporary(Context, None)));
+  OldTypeRefs.Arrays.emplace_back();
+  OldTypeRefs.Arrays.back().first.reset(Tuple);
+  OldTypeRefs.Arrays.back().second = MDTuple::getTemporary(Context, None);
   return OldTypeRefs.Arrays.back().second.get();
 }