Revert "[ORC] Switch from shared_ptr to unique_ptr for addModule methods."

This reverts commit r327566, it breaks
test/ExecutionEngine/OrcMCJIT/test-global-ctors.ll.

The test doesn't crash with a stack trace, unfortunately. It merely
returns 1 as the exit code.

ASan didn't produce a report, and I reproduced this on my Linux machine
and Windows box.

llvm-svn: 327576

1 files changed, 14 insertions, 8 deletions

diff --git a/llvm/lib/ExecutionEngine/Orc/OrcCBindings.cpp b/llvm/lib/ExecutionEngine/Orc/OrcCBindings.cpp
index 29235cd50a8..f945acaf95e 100644
--- a/llvm/lib/ExecutionEngine/Orc/OrcCBindings.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/OrcCBindings.cpp
@@ -12,6 +12,14 @@
 
 using namespace llvm;
 
+LLVMSharedModuleRef LLVMOrcMakeSharedModule(LLVMModuleRef Mod) {
+  return wrap(new std::shared_ptr<Module>(unwrap(Mod)));
+}
+
+void LLVMOrcDisposeSharedModuleRef(LLVMSharedModuleRef SharedMod) {
+  delete unwrap(SharedMod);
+}
+
 LLVMOrcJITStackRef LLVMOrcCreateInstance(LLVMTargetMachineRef TM) {
   TargetMachine *TM2(unwrap(TM));
 
@@ -68,25 +76,23 @@ LLVMOrcErrorCode LLVMOrcSetIndirectStubPointer(LLVMOrcJITStackRef JITStack,
 LLVMOrcErrorCode
 LLVMOrcAddEagerlyCompiledIR(LLVMOrcJITStackRef JITStack,
                             LLVMOrcModuleHandle *RetHandle,
-                            LLVMModuleRef Mod,
+                            LLVMSharedModuleRef Mod,
                             LLVMOrcSymbolResolverFn SymbolResolver,
                             void *SymbolResolverCtx) {
   OrcCBindingsStack &J = *unwrap(JITStack);
-  std::unique_ptr<Module> M(unwrap(Mod));
-  return J.addIRModuleEager(*RetHandle, std::move(M), SymbolResolver,
-                            SymbolResolverCtx);
+  std::shared_ptr<Module> *M(unwrap(Mod));
+  return J.addIRModuleEager(*RetHandle, *M, SymbolResolver, SymbolResolverCtx);
 }
 
 LLVMOrcErrorCode
 LLVMOrcAddLazilyCompiledIR(LLVMOrcJITStackRef JITStack,
                            LLVMOrcModuleHandle *RetHandle,
-                           LLVMModuleRef Mod,
+                           LLVMSharedModuleRef Mod,
                            LLVMOrcSymbolResolverFn SymbolResolver,
                            void *SymbolResolverCtx) {
   OrcCBindingsStack &J = *unwrap(JITStack);
-  std::unique_ptr<Module> M(unwrap(Mod));
-  return J.addIRModuleLazy(*RetHandle, std::move(M), SymbolResolver,
-                           SymbolResolverCtx);
+  std::shared_ptr<Module> *M(unwrap(Mod));
+  return J.addIRModuleLazy(*RetHandle, *M, SymbolResolver, SymbolResolverCtx);
 }
 
 LLVMOrcErrorCode