commit 325cdd8be9b037f6a86d0e33a7c4c077094b1500
author Fariborz Jahanian <fjahanian@apple.com> Thu Aug 06 19:12:38 2009 +0000
committer Fariborz Jahanian <fjahanian@apple.com> Thu Aug 06 19:12:38 2009 +0000
tree 370e9e0a0f71cbec27755371e579451693e2ffdb
parent 25cbad0c4e3984a2d54e7b0a5d7beb10cc1dd91c

Set and use Elidable in elimination of copy ctors.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78331 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaExprCXX.cpp

diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index 7e0422e..5b74938 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -911,8 +911,10 @@
     assert(!ToType->isReferenceType());
     
     // FIXME: Keep track of whether the copy constructor is elidable or not.
-    From = BuildCXXConstructExpr(Context,
-                                 ToType, SCS.CopyConstructor, false, &From, 1);
+    bool Elidable = (isa<CallExpr>(From) || 
+                     isa<CXXTemporaryObjectExpr>(From));
+    From = BuildCXXConstructExpr(Context, ToType, 
+                                 SCS.CopyConstructor, Elidable, &From, 1);
     return false;
   }