Teach the interpreter to handle global variables that are added to a module after

interpretation has begun.  The JIT already handles this situation correctly, and
the interpreter can already handle new functions being added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26030 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 1 deletions

diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index 53587bf..95610e6 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -171,7 +171,16 @@ void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
     return getPointerToFunction(F);
 
   MutexGuard locked(lock);
-  assert(state.getGlobalAddressMap(locked)[GV] && "Global hasn't had an address allocated yet?");
+  void *p = state.getGlobalAddressMap(locked)[GV];
+  if (p)
+    return p;
+
+  // Global variable might have been added since interpreter started.
+  if (GlobalVariable *GVar =
+          const_cast<GlobalVariable *>(dyn_cast<GlobalVariable>(GV)))
+    EmitGlobalVariable(GVar);
+  else
+    assert("Global hasn't had an address allocated yet!");
   return state.getGlobalAddressMap(locked)[GV];
 }