1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -fblocks -o - %s | FileCheck %s |
2 | |
3 | struct S { |
4 | int a[4]; |
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))); |
9 | }; |
10 | |
11 | // CHECK: define void @_ZN1SC2EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture) |
12 | // CHECK: define void @_ZN1SC1EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture) {{.*}} { |
13 | // CHECK: call void @_ZN1SC2EPiS0_(%struct.S* {{.*}}, {{.*}}, {{.*}} nocapture {{.*}}) |
14 | |
15 | S::S(int *, int * __attribute__((noescape))) {} |
16 | |
17 | // CHECK: define {{.*}} %struct.S* @_ZN1SaSEPi(%struct.S* {{.*}}, {{.*}} nocapture) |
18 | S &S::operator=(int * __attribute__((noescape))) { return *this; } |
19 | |
20 | // CHECK: define void @_ZN1S2m0EPiS0_(%struct.S* {{.*}}, {{.*}} nocapture) |
21 | void S::m0(int *, int * __attribute__((noescape))) {} |
22 | |
23 | // CHECK: define void @_ZN1S3vm1EPiS0_(%struct.S* {{.*}}, {{.*}} nocapture) |
24 | void S::vm1(int *, int * __attribute__((noescape))) {} |
25 | |
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) { |
32 | S t(p0, p1); |
33 | t = p1; |
34 | s->m0(p0, p1); |
35 | s->vm1(p0, p1); |
36 | } |
37 | |
38 | namespace std { |
39 | typedef decltype(sizeof(0)) size_t; |
40 | } |
41 | |
42 | // CHECK: define {{.*}} @_ZnwmPv({{.*}}, {{.*}} nocapture {{.*}}) |
43 | void *operator new(std::size_t, void * __attribute__((noescape)) p) { |
44 | return p; |
45 | } |
46 | |
47 | // CHECK-LABEL: define i8* @_Z5test1Pv( |
48 | // CHECK : %call = call {{.*}} @_ZnwmPv({{.*}}, {{.*}} nocapture {{.*}}) |
49 | void *test1(void *p0) { |
50 | return ::operator new(16, p0); |
51 | } |
52 | |
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))){}; |
58 | t(p0, p1); |
59 | } |
60 | |
61 | // CHECK-LABEL: define void @_Z5test3PFvU8noescapePiES_( |
62 | // CHECK: call void {{.*}}(i32* nocapture {{.*}}) |
63 | typedef void (*NoEscapeFunc)(__attribute__((noescape)) int *); |
64 | |
65 | void test3(NoEscapeFunc f, int *p) { |
66 | f(p); |
67 | } |
68 | |
69 | namespace TestByref { |
70 | |
71 | struct S { |
72 | S(); |
73 | ~S(); |
74 | S(const S &); |
75 | int a; |
76 | }; |
77 | |
78 | typedef void (^BlockTy)(void); |
79 | S &getS(); |
80 | void noescapefunc(__attribute__((noescape)) BlockTy); |
81 | |
82 | // Check that __block variables with reference types are handled correctly. |
83 | |
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 |
90 | |
91 | void test() { |
92 | __block S &x = getS(); |
93 | noescapefunc(^{ (void)x; }); |
94 | } |
95 | |
96 | } |
97 | |