Author: arphaman
Date: Thu Feb 23 18:09:30 2017
New Revision: 296048
URL: http://llvm.org/viewvc/llvm-project?rev=296048&view=rev
Log:
NFC, Add a test that ensures that we don't emit helper code in copy/dispose
routines for objects that are captured with the __unsafe_unretained
ownership qualifier
This is a preparation commit that improves code-coverage in code that emits
block copy/dispose routines.
Modified:
cfe/trunk/test/CodeGenObjC/arc-blocks.m
Modified: cfe/trunk/test/CodeGenObjC/arc-blocks.m
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/arc-blocks.m?rev=296048&r1=296047&r2=296048&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenObjC/arc-blocks.m (original)
+++ cfe/trunk/test/CodeGenObjC/arc-blocks.m Thu Feb 23 18:09:30 2017
@@ -667,6 +667,41 @@ void test18(id x) {
// CHECK-UNOPT-NEXT: ret void
}
+// Ensure that we don't emit helper code in copy/dispose routines for variables
+// that are const-captured.
+void testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(id x, id y) {
+ id __unsafe_unretained unsafeObject = x;
+ (^ { testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(x, unsafeObject);
})();
+}
+
+// CHECK-LABEL:
testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
+// CHECK-UNOPT-LABEL:
testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
+
+// CHECK-UNOPT: @__copy_helper_block
+// CHECK-UNOPT: alloca
+// CHECK-UNOPT-NEXT: alloca
+// CHECK-UNOPT-NEXT: store
+// CHECK-UNOPT-NEXT: store
+// CHECK-UNOPT-NEXT: load
+// CHECK-UNOPT-NEXT: bitcast
+// CHECK-UNOPT-NEXT: load
+// CHECK-UNOPT-NEXT: bitcast
+// CHECK-UNOPT-NEXT: getelementptr
+// CHECK-UNOPT-NEXT: getelementptr
+// CHECK-UNOPT-NEXT: load
+// CHECK-UNOPT-NEXT: store
+// CHECK-UNOPT-NEXT: call void @objc_storeStrong
+// CHECK-UNOPT-NEXT: ret
+
+// CHECK-UNOPT: @__destroy_helper_block
+// CHECK-UNOPT: alloca
+// CHECK-UNOPT-NEXT: store
+// CHECK-UNOPT-NEXT: load
+// CHECK-UNOPT-NEXT: bitcast
+// CHECK-UNOPT-NEXT: getelementptr
+// CHECK-UNOPT-NEXT: call void @objc_storeStrong
+// CHECK-UNOPT-NEXT: ret
+
// rdar://13588325
void test19_sink(void (^)(int));
void test19(void (^b)(void)) {
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