1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -fblocks -o - %s | FileCheck %s
5 S(int *, int * __attribute__((noescape)));
6 S &operator=(int * __attribute__((noescape)));
7 void m0(int *, int * __attribute__((noescape)));
8 virtual void vm1(int *, int * __attribute__((noescape)));
11 // CHECK: define void @_ZN1SC2EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture)
12 // CHECK: define void @_ZN1SC1EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture) {{.*}} {
13 // CHECK: call void @_ZN1SC2EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture {{.*}})
15 S::S(int *, int * __attribute__((noescape))) {}
17 // CHECK: define {{.*}} %struct.S* @_ZN1SaSEPi(%struct.S* {{.*}}, {{.*}} nocapture)
18 S &S::operator=(int * __attribute__((noescape))) { return *this; }
20 // CHECK: define void @_ZN1S2m0EPiS0_(%struct.S* {{.*}}, {{.*}} nocapture)
21 void S::m0(int *, int * __attribute__((noescape))) {}
23 // CHECK: define void @_ZN1S3vm1EPiS0_(%struct.S* {{.*}}, {{.*}} nocapture)
24 void S::vm1(int *, int * __attribute__((noescape))) {}
26 // CHECK-LABEL: define void @_Z5test0P1SPiS1_(
27 // CHECK: call void @_ZN1SC1EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture {{.*}})
28 // CHECK: call {{.*}} %struct.S* @_ZN1SaSEPi(%struct.S* {{.*}}, {{.*}} nocapture {{.*}})
29 // CHECK: call void @_ZN1S2m0EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture {{.*}})
30 // CHECK: call void {{.*}}(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture {{.*}})
31 void test0(S *s, int *p0, int *p1) {
39 typedef decltype(sizeof(0)) size_t;
42 // CHECK: define {{.*}} @_ZnwmPv({{.*}}, {{.*}} nocapture {{.*}})
43 void *operator new(std::size_t, void * __attribute__((noescape)) p) {
47 // CHECK-LABEL: define i8* @_Z5test1Pv(
48 // CHECK : %call = call {{.*}} @_ZnwmPv({{.*}}, {{.*}} nocapture {{.*}})
49 void *test1(void *p0) {
50 return ::operator new(16, p0);
53 // CHECK-LABEL: define void @_Z5test2PiS_(
54 // CHECK: call void @"_ZZ5test2PiS_ENK3$_0clES_S_"({{.*}}, {{.*}}, {{.*}} nocapture {{.*}})
55 // CHECK: define internal void @"_ZZ5test2PiS_ENK3$_0clES_S_"({{.*}}, {{.*}}, {{.*}} nocapture)
56 void test2(int *p0, int *p1) {
57 auto t = [](int *, int * __attribute__((noescape))){};
61 // CHECK-LABEL: define void @_Z5test3PFvU8noescapePiES_(
62 // CHECK: call void {{.*}}(i32* nocapture {{.*}})
63 typedef void (*NoEscapeFunc)(__attribute__((noescape)) int *);
65 void test3(NoEscapeFunc f, int *p) {
78 typedef void (^BlockTy)(void);
80 void noescapefunc(__attribute__((noescape)) BlockTy);
82 // Check that __block variables with reference types are handled correctly.
84 // CHECK: define void @_ZN9TestByref4testEv(
85 // CHECK: %[[X:.*]] = alloca %[[STRUCT_TESTBYREF:.*]]*, align 8
86 // CHECK: %[[BLOCK:.*]] = alloca <{ i8*, i32, i32, i8*, %{{.*}}*, %[[STRUCT_TESTBYREF]]* }>, align 8
87 // CHECK: %[[BLOCK_CAPTURED:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %{{.*}}*, %[[STRUCT_TESTBYREF]]* }>, <{ i8*, i32, i32, i8*, %{{.*}}*, %[[STRUCT_TESTBYREF]]* }>* %[[BLOCK]], i32 0, i32 5
88 // CHECK: %[[V0:.*]] = load %[[STRUCT_TESTBYREF]]*, %[[STRUCT_TESTBYREF]]** %[[X]], align 8
89 // CHECK: store %[[STRUCT_TESTBYREF]]* %[[V0]], %[[STRUCT_TESTBYREF]]** %[[BLOCK_CAPTURED]], align 8
92 __block S &x = getS();
93 noescapefunc(^{ (void)x; });