1 files changed, 82 insertions, 0 deletions
diff --git a/test/CodeGenObjCXX/block-nested-in-lambda.mm b/test/CodeGenObjCXX/block-nested-in-lambda.mm
new file mode 100644
index 0000000000000..be1ad8117cd25
--- /dev/null
+++ b/test/CodeGenObjCXX/block-nested-in-lambda.mm
@@ -0,0 +1,82 @@
+// RUN: %clang_cc1 -triple=x86_64-apple-darwin10 -emit-llvm -std=c++11 -fblocks -fobjc-arc -o - %s | FileCheck %s
+
+// CHECK: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i64, i64 }
+
+// CHECK: %[[BLOCK_CAPTURED0:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>* %[[BLOCK:.*]], i32 0, i32 5
+// CHECK: %[[V0:.*]] = getelementptr inbounds %[[LAMBDA_CLASS:.*]], %[[LAMBDA_CLASS]]* %[[THIS:.*]], i32 0, i32 0
+// CHECK: %[[V1:.*]] = load i32*, i32** %[[V0]], align 8
+// CHECK: store i32* %[[V1]], i32** %[[BLOCK_CAPTURED0]], align 8
+// CHECK: %[[BLOCK_CAPTURED1:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, i32*, i32* }>* %[[BLOCK]], i32 0, i32 6
+// CHECK: %[[V2:.*]] = getelementptr inbounds %[[LAMBDA_CLASS]], %[[LAMBDA_CLASS]]* %[[THIS]], i32 0, i32 1
+// CHECK: %[[V3:.*]] = load i32*, i32** %[[V2]], align 8
+// CHECK: store i32* %[[V3]], i32** %[[BLOCK_CAPTURED1]], align 8
+
+void foo1(int &, int &);
+
+void block_in_lambda(int &s1, int &s2) {
+  auto lambda = [&s1, &s2]() {
+    auto block = ^{
+      foo1(s1, s2);
+    };
+    block();
+  };
+
+  lambda();
+}
+
+namespace CaptureByReference {
+
+id getObj();
+void use(id);
+
+// Block copy/dispose helpers aren't needed because 'a' is captured by
+// reference.
+
+// CHECK-LABEL: define void @_ZN18CaptureByReference5test0Ev(
+// CHECK-LABEL: define internal void @"_ZZN18CaptureByReference5test0EvENK3$_1clEv"(
+// CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8** }>* %{{.*}}, i32 0, i32 4
+// CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i64 }* @"__block_descriptor_40_e5_v8\01?0ls32l8" to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
+
+void test0() {
+  id a = getObj();
+  [&]{ ^{ a = 0; }(); }();
+}
+
+// Block copy/dispose helpers shouldn't have to retain/release 'a' because it
+// is captured by reference.
+
+// CHECK-LABEL: define void @_ZN18CaptureByReference5test1Ev(
+// CHECK-LABEL: define internal void @"_ZZN18CaptureByReference5test1EvENK3$_2clEv"(
+// CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 4
+// CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @"__block_descriptor_56_8_32s40s_e5_v8\01?0l" to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
+
+// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32s40s(
+// CHECK-NOT: call void @llvm.objc.storeStrong(
+// CHECK: %[[V4:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 5
+// CHECK: %[[V5:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 5
+// CHECK: %[[BLOCKCOPY_SRC:.*]] = load i8*, i8** %[[V4]], align 8
+// CHECK: store i8* null, i8** %[[V5]], align 8
+// CHECK: call void @llvm.objc.storeStrong(i8** %[[V5]], i8* %[[BLOCKCOPY_SRC]])
+// CHECK: %[[V6:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 6
+// CHECK: %[[V7:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 6
+// CHECK: %[[BLOCKCOPY_SRC2:.*]] = load i8*, i8** %[[V6]], align 8
+// CHECK: store i8* null, i8** %[[V7]], align 8
+// CHECK: call void @llvm.objc.storeStrong(i8** %[[V7]], i8* %[[BLOCKCOPY_SRC2]])
+// CHECK-NOT: call void @llvm.objc.storeStrong(
+// CHECK: ret void
+
+// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32s40s(
+// CHECK: %[[V2:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 5
+// CHECK: %[[V3:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8*, i8** }>* %{{.*}}, i32 0, i32 6
+// CHECK-NOT: call void @llvm.objc.storeStrong(
+// CHECK: call void @llvm.objc.storeStrong(i8** %[[V3]], i8* null)
+// CHECK: call void @llvm.objc.storeStrong(i8** %[[V2]], i8* null)
+// CHECK-NOT: call void @llvm.objc.storeStrong(
+// CHECK: ret void
+
+void test1() {
+  id a = getObj(), b = getObj(), c = getObj();
+  [&a, b, c]{ ^{ a = 0; use(b); use(c); }(); }();
+}
+
+}