Implemented memmove_collectable API for Next runtime
when struct variables with GC'able members are copied into.
Will provide a test case later.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74984 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index c335457..2dbd54a 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -359,6 +359,16 @@
return CGM.CreateRuntimeFunction(FTy, "objc_assign_ivar");
}
+ /// GcMemmoveCollectableFn -- LLVM objc_memmove_collectable function.
+ llvm::Constant *GcMemmoveCollectableFn() {
+ // void *objc_memmove_collectable(void *dst, const void *src, size_t size)
+ std::vector<const llvm::Type*> Args(1, Int8PtrTy);
+ Args.push_back(Int8PtrTy);
+ Args.push_back(LongTy);
+ llvm::FunctionType *FTy = llvm::FunctionType::get(Int8PtrTy, Args, false);
+ return CGM.CreateRuntimeFunction(FTy, "objc_memmove_collectable");
+ }
+
/// GcAssignStrongCastFn -- LLVM objc_assign_strongCast function.
llvm::Constant *getGcAssignStrongCastFn() {
// id objc_assign_global(id, id *)
@@ -1103,6 +1113,9 @@
llvm::Value *src, llvm::Value *dest);
virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF,
llvm::Value *src, llvm::Value *dest);
+ virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *dest, llvm::Value *src,
+ unsigned long size);
virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
QualType ObjectTy,
@@ -1329,6 +1342,9 @@
llvm::Value *src, llvm::Value *dest);
virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF,
llvm::Value *src, llvm::Value *dest);
+ virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *dest, llvm::Value *src,
+ unsigned long size);
virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
QualType ObjectTy,
llvm::Value *BaseValue,
@@ -2755,6 +2771,18 @@
return;
}
+void CGObjCMac::EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *DestPtr,
+ llvm::Value *SrcPtr,
+ unsigned long size) {
+ SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, ObjCTypes.Int8PtrTy);
+ DestPtr = CGF.Builder.CreateBitCast(DestPtr, ObjCTypes.Int8PtrTy);
+ llvm::Value *N = llvm::ConstantInt::get(ObjCTypes.LongTy, size);
+ CGF.Builder.CreateCall3(ObjCTypes.GcMemmoveCollectableFn(),
+ DestPtr, SrcPtr, N);
+ return;
+}
+
/// EmitObjCValueForIvar - Code Gen for ivar reference.
///
LValue CGObjCMac::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
@@ -5294,6 +5322,19 @@
return;
}
+void CGObjCNonFragileABIMac::EmitGCMemmoveCollectable(
+ CodeGen::CodeGenFunction &CGF,
+ llvm::Value *DestPtr,
+ llvm::Value *SrcPtr,
+ unsigned long size) {
+ SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, ObjCTypes.Int8PtrTy);
+ DestPtr = CGF.Builder.CreateBitCast(DestPtr, ObjCTypes.Int8PtrTy);
+ llvm::Value *N = llvm::ConstantInt::get(ObjCTypes.LongTy, size);
+ CGF.Builder.CreateCall3(ObjCTypes.GcMemmoveCollectableFn(),
+ DestPtr, SrcPtr, N);
+ return;
+}
+
/// EmitObjCWeakRead - Code gen for loading value of a __weak
/// object: objc_read_weak (id *src)
///