Fill in the return value slot in CGExprAgg::VisitCallExpr. This takes us halfway towards fixing PR5824.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92142 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp
index 0802e905ea..16249e4aab 100644
--- a/lib/CodeGen/CGExprAgg.cpp
+++ b/lib/CodeGen/CGExprAgg.cpp
@@ -272,6 +272,13 @@ void AggExprEmitter::VisitCallExpr(const CallExpr *E) {
     return;
   }
 
+  // If the struct doesn't require GC, we can just pass the destination
+  // directly to EmitCall.
+  if (!RequiresGCollection) {
+    CGF.EmitCallExpr(E, ReturnValueSlot(DestPtr, VolatileDest));
+    return;
+  }
+  
   RValue RV = CGF.EmitCallExpr(E);
   EmitFinalDestCopy(E, RV);
 }