Moved LLVM cleanup to after after_llvm phase

src/librustc_driver/driver.rs

@@ -225,6 +225,8 @@ pub fn compile_input(sess: &Session,
                             phase5_result);
     phase5_result?;
 
+    write::cleanup_llvm(&trans);
+
     phase_6_link_output(sess, &trans, &outputs);
 
     Ok(())

src/librustc_trans/back/write.rs

@@ -616,11 +616,19 @@ unsafe fn optimize_and_codegen(cgcx: &CodegenContext,
         }
     }
 
-    llvm::LLVMDisposeModule(llmod);
-    llvm::LLVMContextDispose(llcx);
     llvm::LLVMRustDisposeTargetMachine(tm);
 }
 
+
+pub fn cleanup_llvm(trans: &CrateTranslation) {
+    for module in trans.modules.iter() {
+        unsafe {
+            llvm::LLVMDisposeModule(module.llmod);
+            llvm::LLVMContextDispose(module.llcx);
+        }
+    }
+}
+
 pub fn run_passes(sess: &Session,
                   trans: &CrateTranslation,
                   output_types: &HashMap<OutputType, Option<PathBuf>>,