From: Fariborz Jahanian <fjahanian@apple.com>
Date: Sat, 11 Jun 2011 00:45:12 +0000 (+0000)
Subject: Restore 'atomic' as an attribute of objc
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=45937ae10a0f70f74508165aab4f2b63e18ea747;p=clang

Restore 'atomic' as an attribute of objc
properties.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132866 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/DeclObjC.h b/include/clang/AST/DeclObjC.h
index 6b2113a695..0a4d864cd8 100644
--- a/include/clang/AST/DeclObjC.h
+++ b/include/clang/AST/DeclObjC.h
@@ -1380,7 +1380,8 @@ public:
     OBJC_PR_retain    = 0x10,
     OBJC_PR_copy      = 0x20,
     OBJC_PR_nonatomic = 0x40,
-    OBJC_PR_setter    = 0x80
+    OBJC_PR_setter    = 0x80,
+    OBJC_PR_atomic    = 0x100
   };
 
   enum SetterKind { Assign, Retain, Copy };
diff --git a/include/clang/Sema/DeclSpec.h b/include/clang/Sema/DeclSpec.h
index 456612bc22..be1f5f8c79 100644
--- a/include/clang/Sema/DeclSpec.h
+++ b/include/clang/Sema/DeclSpec.h
@@ -688,7 +688,8 @@ public:
     DQ_PR_retain = 0x10,
     DQ_PR_copy = 0x20,
     DQ_PR_nonatomic = 0x40,
-    DQ_PR_setter = 0x80
+    DQ_PR_setter = 0x80,
+    DQ_PR_atomic = 0x100
   };
 
 
diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index 8c8fd746a6..fdbedc54d1 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -512,6 +512,8 @@ void Parser::ParseObjCPropertyAttribute(ObjCDeclSpec &DS, Decl *ClassDecl) {
       DS.setPropertyAttributes(ObjCDeclSpec::DQ_PR_copy);
     else if (II->isStr("nonatomic"))
       DS.setPropertyAttributes(ObjCDeclSpec::DQ_PR_nonatomic);
+    else if (II->isStr("atomic"))
+      DS.setPropertyAttributes(ObjCDeclSpec::DQ_PR_atomic);
     else if (II->isStr("getter") || II->isStr("setter")) {
       bool IsSetter = II->getNameStart()[0] == 's';
 
diff --git a/lib/Sema/SemaObjCProperty.cpp b/lib/Sema/SemaObjCProperty.cpp
index 109826942e..6c4469cef9 100644
--- a/lib/Sema/SemaObjCProperty.cpp
+++ b/lib/Sema/SemaObjCProperty.cpp
@@ -295,6 +295,8 @@ ObjCPropertyDecl *Sema::CreatePropertyDecl(Scope *S,
 
   if (Attributes & ObjCDeclSpec::DQ_PR_nonatomic)
     PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_nonatomic);
+  else if (Attributes & ObjCDeclSpec::DQ_PR_atomic)
+    PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_atomic);
 
   PDecl->setPropertyAttributesAsWritten(PDecl->getPropertyAttributes());
   
@@ -346,7 +348,8 @@ Decl *Sema::ActOnPropertyImplDecl(Scope *S,
       return 0;
     }
     unsigned PIkind = property->getPropertyAttributesAsWritten();
-    if ((PIkind & ObjCPropertyDecl::OBJC_PR_nonatomic) == 0) {
+    if ((PIkind & (ObjCPropertyDecl::OBJC_PR_atomic |
+                   ObjCPropertyDecl::OBJC_PR_nonatomic) ) == 0) {
       if (AtLoc.isValid())
         Diag(AtLoc, diag::warn_implicit_atomic_property);
       else
@@ -1088,7 +1091,8 @@ Sema::AtomicPropertySetterGetterRules (ObjCImplDecl* IMPDecl,
     unsigned Attributes = Property->getPropertyAttributes();
     unsigned AttributesAsWrittern = Property->getPropertyAttributesAsWritten();
 
-    if (!(AttributesAsWrittern & ObjCPropertyDecl::OBJC_PR_nonatomic)) {
+    if (!(AttributesAsWrittern & ObjCPropertyDecl::OBJC_PR_atomic) &&
+        !(AttributesAsWrittern & ObjCPropertyDecl::OBJC_PR_nonatomic)) {
       GetterMethod = IMPDecl->getInstanceMethod(Property->getGetterName());
       SetterMethod = IMPDecl->getInstanceMethod(Property->getSetterName());
       LookedUpGetterSetter = true;
diff --git a/test/SemaObjC/warn-implicit-atomic-property.m b/test/SemaObjC/warn-implicit-atomic-property.m
index bf60dbb630..0b4590a42d 100644
--- a/test/SemaObjC/warn-implicit-atomic-property.m
+++ b/test/SemaObjC/warn-implicit-atomic-property.m
@@ -3,11 +3,11 @@
 
 @interface Super
 @property (nonatomic, readwrite) int P; // OK
-@property (readwrite) int P1; // expected-note {{property declared here}}
+@property (atomic, readwrite) int P1; // OK
 @property (readwrite) int P2; // expected-note {{property declared here}}
 @property int P3; // expected-note {{property declared here}}
 @end
 
 @implementation Super // expected-warning {{property is assumed atomic when auto-synthesizing the property [-Wimplicit-atomic-properties]}}
-@synthesize P,P1,P2; // expected-warning 2 {{property is assumed atomic by default [-Wimplicit-atomic-properties]}}
+@synthesize P,P1,P2; // expected-warning {{property is assumed atomic by default [-Wimplicit-atomic-properties]}}
 @end