Bitcode: Change the materializer interface to return llvm::Error.

Differential Revision: https://reviews.llvm.org/D26439

llvm-svn: 286382

llvm/lib/IR/Module.cpp

@@ -25,6 +25,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/TypeFinder.h"
 #include "llvm/Support/Dwarf.h"
+#include "llvm/Support/Error.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/RandomNumberGenerator.h"
@@ -405,23 +406,23 @@ void Module::setMaterializer(GVMaterializer *GVM) {
   Materializer.reset(GVM);
 }
 
-std::error_code Module::materialize(GlobalValue *GV) {
+Error Module::materialize(GlobalValue *GV) {
   if (!Materializer)
-    return std::error_code();
+    return Error::success();
 
   return Materializer->materialize(GV);
 }
 
-std::error_code Module::materializeAll() {
+Error Module::materializeAll() {
   if (!Materializer)
-    return std::error_code();
+    return Error::success();
   std::unique_ptr<GVMaterializer> M = std::move(Materializer);
   return M->materializeModule();
 }
 
-std::error_code Module::materializeMetadata() {
+Error Module::materializeMetadata() {
   if (!Materializer)
-    return std::error_code();
+    return Error::success();
   return Materializer->materializeMetadata();
 }