Dematerialize the source functions after we're done with them. This saves a bit

of memory during LTO.

llvm-svn: 153313

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Linker/LinkModules.cpp b/llvm/lib/Linker/LinkModules.cpp
index 02905bc3397..dca523c7ab1 100644
--- a/llvm/lib/Linker/LinkModules.cpp
+++ b/llvm/lib/Linker/LinkModules.cpp
@@ -1226,6 +1226,7 @@ bool ModuleLinker::run() {
     }
     
     linkFunctionBody(cast<Function>(ValueMap[SF]), SF);
+    SF->Dematerialize();
   }
 
   // Resolve all uses of aliases with aliasees.
@@ -1265,7 +1266,8 @@ bool ModuleLinker::run() {
         
         // Link in function body.
         linkFunctionBody(DF, SF);
-        
+        SF->Dematerialize();
+
         // "Remove" from vector by setting the element to 0.
         *I = 0;