Objective-C [IRGen]. Generator a tail call to objc_getProperty() in 
synthesized getters for performance improvement. 
// rdar://15884113

llvm-svn: 200430
diff --git a/clang/test/CodeGenObjC/arc-property.m b/clang/test/CodeGenObjC/arc-property.m
index c3c7e2b..8398a1b 100644
--- a/clang/test/CodeGenObjC/arc-property.m
+++ b/clang/test/CodeGenObjC/arc-property.m
@@ -67,7 +67,7 @@
 
 // CHECK:    define internal i8* @"\01-[Test2 theClass]"(
 // CHECK:      [[OFFSET:%.*]] = load i64* @"OBJC_IVAR_$_Test2._theClass"
-// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_getProperty(i8* {{.*}}, i8* {{.*}}, i64 [[OFFSET]], i1 zeroext true)
+// CHECK-NEXT: [[T0:%.*]] = tail call i8* @objc_getProperty(i8* {{.*}}, i8* {{.*}}, i64 [[OFFSET]], i1 zeroext true)
 // CHECK-NEXT: ret i8* [[T0]]
 
 // CHECK:    define internal void @"\01-[Test2 setTheClass:]"(
diff --git a/clang/test/CodeGenObjC/arc.m b/clang/test/CodeGenObjC/arc.m
index f98aa32..06628b9 100644
--- a/clang/test/CodeGenObjC/arc.m
+++ b/clang/test/CodeGenObjC/arc.m
@@ -1004,7 +1004,7 @@
 @synthesize x;
 @end
 // CHECK:    define internal i8* @"\01-[Test45 x]"(
-// CHECK:      [[CALL:%.*]] = call i8* @objc_getProperty(
+// CHECK:      [[CALL:%.*]] = tail call i8* @objc_getProperty(
 // CHECK-NEXT: ret i8* [[CALL]]
 
 // rdar://problem/9315552
@@ -1352,7 +1352,7 @@
 @implementation Person
 @synthesize address;
 @end
-// CHECK: call i8* @objc_getProperty
+// CHECK: tail call i8* @objc_getProperty
 // CHECK: call void @objc_setProperty 
 
 // Verify that we successfully parse and preserve this attribute in
diff --git a/clang/test/CodeGenObjC/getter-property-mismatch.m b/clang/test/CodeGenObjC/getter-property-mismatch.m
index 21ed6ee..fe415d5 100644
--- a/clang/test/CodeGenObjC/getter-property-mismatch.m
+++ b/clang/test/CodeGenObjC/getter-property-mismatch.m
@@ -13,7 +13,7 @@
 @synthesize filenamesToServerLocation=_filenamesToServerLocation;
 @end
 
-// CHECK:  [[CALL:%.*]] = call i8* @objc_getProperty
+// CHECK:  [[CALL:%.*]] = tail call i8* @objc_getProperty
 // CHECK:  [[ONE:%.*]] = bitcast i8* [[CALL:%.*]] to [[T1:%.*]]*
 // CHECK:  [[TWO:%.*]] = bitcast [[T1]]* [[ONE]] to [[T2:%.*]]*
 // CHECK:  ret [[T2]]* [[TWO]]