GNUstep runtime version default to 1.6, generate correct property attribute

metadata.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166023 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 39 insertions, 3 deletions

diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index 26da76525d..80fa2afcd4 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -224,6 +224,25 @@ protected:
     llvm::ArrayType *ArrayTy = llvm::ArrayType::get(Ty, V.size());
     return MakeGlobal(ArrayTy, V, Name, linkage);
   }
+  /// Returns a property name and encoding string.
+  llvm::Constant *MakePropertyEncodingString(const ObjCPropertyDecl *PD,
+                                             const Decl *Container) {
+    ObjCRuntime R = CGM.getLangOpts().ObjCRuntime;
+    if ((R.getKind() == ObjCRuntime::GNUstep) &&
+        (R.getVersion() >= VersionTuple(1, 6))) {
+      std::string NameAndAttributes;
+      std::string TypeStr;
+      CGM.getContext().getObjCEncodingForPropertyDecl(PD, Container, TypeStr);
+      NameAndAttributes += '\0';
+      NameAndAttributes += TypeStr.length() + 3;
+      NameAndAttributes += TypeStr;
+      NameAndAttributes += '\0';
+      NameAndAttributes += PD->getNameAsString();
+      return llvm::ConstantExpr::getGetElementPtr(
+          CGM.GetAddrOfConstantString(NameAndAttributes), Zeros);
+    }
+    return MakeConstantString(PD->getNameAsString());
+  }
   /// Ensures that the value has the required type, by inserting a bitcast if
   /// required.  This function lets us avoid inserting bitcasts that are
   /// redundant.
@@ -1691,7 +1710,9 @@ void CGObjCGNU::GenerateProtocol(const ObjCProtocolDecl *PD) {
     std::vector<llvm::Constant*> Fields;
     ObjCPropertyDecl *property = *iter;
 
-    Fields.push_back(MakeConstantString(property->getNameAsString()));
+
+    Fields.push_back(MakePropertyEncodingString(property, PD));
+
     Fields.push_back(llvm::ConstantInt::get(Int8Ty,
                 property->getPropertyAttributes()));
     Fields.push_back(llvm::ConstantInt::get(Int8Ty, 0));
@@ -1944,7 +1965,7 @@ llvm::Constant *CGObjCGNU::GeneratePropertyList(const ObjCImplementationDecl *OI
     bool isSynthesized = (propertyImpl->getPropertyImplementation() == 
         ObjCPropertyImplDecl::Synthesize);
 
-    Fields.push_back(MakeConstantString(property->getNameAsString()));
+    Fields.push_back(MakePropertyEncodingString(property, OID));
     Fields.push_back(llvm::ConstantInt::get(Int8Ty,
                 property->getPropertyAttributes()));
     Fields.push_back(llvm::ConstantInt::get(Int8Ty, isSynthesized));
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 63d31b8ad4..760fc8bd9e 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -3070,7 +3070,7 @@ ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args,
     // Legacy behaviour is to target the gnustep runtime if we are i
     // non-fragile mode or the GCC runtime in fragile mode.
     if (isNonFragile)
-      runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple());
+      runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(1,6));
     else
       runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple());
   }
diff --git a/test/CodeGenObjC/prop-metadata-gnu.m b/test/CodeGenObjC/prop-metadata-gnu.m
new file mode 100644
index 0000000000..c15d978775
--- /dev/null
+++ b/test/CodeGenObjC/prop-metadata-gnu.m
@@ -0,0 +1,15 @@
+// RUN: %clang -S -emit-llvm %s -o - -x objective-c -fobjc-runtime=gcc | FileCheck --check-prefix=GCC %s
+// RUN: %clang -S -emit-llvm %s -o - -x objective-c -fobjc-runtime=gnustep-1.5 | FileCheck --check-prefix=GCC %s
+// RUN: %clang -S -emit-llvm %s -o - -x objective-c -fobjc-runtime=gnustep-1.6 | FileCheck --check-prefix=GNUSTEP %s
+//
+@interface helloclass  {
+@private int varName;
+}
+@property (readwrite,assign) int propName;
+@end
+
+@implementation helloclass
+@synthesize propName = varName;
+@end
+// GCC-NOT: Ti,VvarName
+// GNUSTEP: Ti,VvarName