commit f9603354ea88a3c64da45d5f938fd64e28de2a30
author Richard Smith <richard-llvm@metafoo.co.uk> Tue Jun 21 23:07:19 2011 +0000
committer Richard Smith <richard-llvm@metafoo.co.uk> Tue Jun 21 23:07:19 2011 +0000
tree fb0473c8e97861214cda3339a2c6f29bb80e6d01
parent 889ed86d73d1a7d5c7b8febe69ff322a194733e9

First part of PR9968: the __range variable in a dependent C++11 for-range statement is implicitly used by that statement.

llvm-svn: 133572

clang/lib/Sema/SemaStmt.cpp

diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index 9af9c8d..0ba4f99 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -1406,6 +1406,9 @@
       if (LoopVar->isInvalidDecl())
         NoteForRangeBeginEndFunction(*this, BeginExpr.get(), BEF_begin);
     }
+  } else {
+    // The range is implicitly used as a placeholder when it is dependent.
+    RangeVar->setUsed();
   }
 
   return Owned(new (Context) CXXForRangeStmt(RangeDS,