Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable.

llvm-svn: 56557

2 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
index 52a69eaea77..8cc2244272b 100644
--- a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -40,6 +40,7 @@ ExecutionEngine::EERegisterFn ExecutionEngine::ExceptionTableRegister = 0;
 
 ExecutionEngine::ExecutionEngine(ModuleProvider *P) : LazyFunctionCreator(0) {
   LazyCompilationDisabled = false;
+  GVCompilationDisabled   = false;
   SymbolSearchingDisabled = false;
   Modules.push_back(P);
   assert(P && "ModuleProvider is null?");
diff --git a/llvm/lib/ExecutionEngine/JIT/JIT.cpp b/llvm/lib/ExecutionEngine/JIT/JIT.cpp
index 39ecc2796c7..383b3804758 100644
--- a/llvm/lib/ExecutionEngine/JIT/JIT.cpp
+++ b/llvm/lib/ExecutionEngine/JIT/JIT.cpp
@@ -552,6 +552,10 @@ void *JIT::getOrEmitGlobalVariable(const GlobalVariable *GV) {
     addGlobalMapping(GV, Ptr);
     }
   } else {
+    if (isGVCompilationDisabled()) {
+      cerr << "Compilation of GlobalVariable is disabled!\n";
+      abort();
+    }
     // If the global hasn't been emitted to memory yet, allocate space and
     // emit it into memory.  It goes in the same array as the generated
     // code, jump tables, etc.