Enable the new (more C++-like, less broken) EH model when targeting the GNUstep

Objective-C runtime 1.7 or greater.

llvm-svn: 172207

1 files changed, 11 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGObjCGNU.cpp b/clang/lib/CodeGen/CGObjCGNU.cpp
index d1ca3bf263b..adc2ed02857 100644
--- a/clang/lib/CodeGen/CGObjCGNU.cpp
+++ b/clang/lib/CodeGen/CGObjCGNU.cpp
@@ -675,6 +675,8 @@ class CGObjCGNUstep : public CGObjCGNU {
     }
   public:
     CGObjCGNUstep(CodeGenModule &Mod) : CGObjCGNU(Mod, 9, 3) {
+      ObjCRuntime R = CGM.getLangOpts().ObjCRuntime;
+
       llvm::StructType *SlotStructTy = llvm::StructType::get(PtrTy,
           PtrTy, PtrTy, IntTy, IMPTy, NULL);
       SlotTy = llvm::PointerType::getUnqual(SlotStructTy);
@@ -694,6 +696,15 @@ class CGObjCGNUstep : public CGObjCGNU {
         // void _Unwind_Resume_or_Rethrow(void*)
         ExceptionReThrowFn.init(&CGM, "_Unwind_Resume_or_Rethrow", VoidTy,
             PtrTy, NULL);
+      } else if (R.getVersion() >= VersionTuple(1, 7)) {
+        llvm::Type *VoidTy = llvm::Type::getVoidTy(VMContext);
+        // id objc_begin_catch(void *e)
+        EnterCatchFn.init(&CGM, "objc_begin_catch", IdTy, PtrTy, NULL);
+        // void objc_end_catch(void)
+        ExitCatchFn.init(&CGM, "objc_end_catch", VoidTy, NULL);
+        // void _Unwind_Resume_or_Rethrow(void*)
+        ExceptionReThrowFn.init(&CGM, "objc_exception_rethrow", VoidTy,
+            PtrTy, NULL);
       }
       llvm::Type *VoidTy = llvm::Type::getVoidTy(VMContext);
       SetPropertyAtomic.init(&CGM, "objc_setProperty_atomic", VoidTy, IdTy,