Add possibility to set memory limit for binaries run via libSystem. This
is especially needed for bugpoint. This partly implements PR688


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34349 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/OptimizerDriver.cpp b/tools/bugpoint/OptimizerDriver.cpp
index 374de26..210f348 100644
--- a/tools/bugpoint/OptimizerDriver.cpp
+++ b/tools/bugpoint/OptimizerDriver.cpp
@@ -194,7 +194,8 @@
     prog = sys::Program::FindProgramByName("valgrind");
   else
     prog = tool;
-  int result = sys::Program::ExecuteAndWait(prog,args,0,0,Timeout,&ErrMsg);
+  int result = sys::Program::ExecuteAndWait(prog, args, 0, 0,
+                                            Timeout, MemoryLimit, &ErrMsg);
 
   // If we are supposed to delete the bytecode file or if the passes crashed,
   // remove it now.  This may fail if the file was never created, but that's ok.