[ObjC] Remove _Atomic from return type and parameter type of

objective-c properties.

This fixes an assert in CodeGen that fires when the getter and setter
functions for an objective-c property of type _Atomic(_Bool) are
synthesized.

rdar://problem/26322972

Differential Revision: http://reviews.llvm.org/D20407

llvm-svn: 270808

1 files changed, 34 insertions, 0 deletions

diff --git a/clang/test/CodeGenObjC/property-atomic-bool.m b/clang/test/CodeGenObjC/property-atomic-bool.m
new file mode 100644
index 00000000000..77da129f6c0
--- /dev/null
+++ b/clang/test/CodeGenObjC/property-atomic-bool.m
@@ -0,0 +1,34 @@
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10 -emit-llvm -x objective-c %s -o - | FileCheck %s
+
+// CHECK: define internal zeroext i1 @"\01-[A0 p]"(
+// CHECK:   %[[ATOMIC_LOAD:.*]] = load atomic i8, i8* %{{.*}} seq_cst
+// CHECK:   %[[TOBOOL:.*]] = trunc i8 %[[ATOMIC_LOAD]] to i1
+// CHECK:   ret i1 %[[TOBOOL]]
+
+// CHECK: define internal void @"\01-[A0 setP:]"({{.*}} i1 zeroext {{.*}})
+// CHECK:   store atomic i8 %{{.*}}, i8* %{{.*}} seq_cst
+// CHECK:   ret void
+
+// CHECK: define internal zeroext i1 @"\01-[A1 p]"(
+// CHECK:   %[[ATOMIC_LOAD:.*]] = load atomic i8, i8* %{{.*}} unordered
+// CHECK:   %[[TOBOOL:.*]] = trunc i8 %load to i1
+// CHECK:   ret i1 %[[TOBOOL]]
+
+// CHECK: define internal void @"\01-[A1 setP:]"({{.*}} i1 zeroext %p)
+// CHECK:   store atomic i8 %{{.*}}, i8* %{{.*}} unordered
+// CHECK:   ret void
+
+@interface A0
+@property(nonatomic) _Atomic(_Bool) p;
+@end
+@implementation A0
+@end
+
+@interface A1 {
+  _Atomic(_Bool) p;
+}
+@property _Atomic(_Bool) p;
+@end
+@implementation A1
+@synthesize p;
+@end