derek.holloway
7502bf64a4
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97 lines
3.4 KiB
C++
97 lines
3.4 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -fblocks -o - %s | FileCheck %s
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struct S {
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int a[4];
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S(int *, int * __attribute__((noescape)));
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S &operator=(int * __attribute__((noescape)));
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void m0(int *, int * __attribute__((noescape)));
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virtual void vm1(int *, int * __attribute__((noescape)));
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};
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// CHECK: define{{.*}} void @_ZN1SC2EPiS0_(ptr {{.*}}, {{.*}}, {{.*}} noundef captures(address) {{%.*}})
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// CHECK: define{{.*}} void @_ZN1SC1EPiS0_(ptr {{.*}}, {{.*}}, {{.*}} noundef captures(address) {{%.*}}) {{.*}} {
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// CHECK: call void @_ZN1SC2EPiS0_(ptr {{.*}}, {{.*}}, {{.*}} captures(address) {{.*}})
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S::S(int *, int * __attribute__((noescape))) {}
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// CHECK: define {{.*}} ptr @_ZN1SaSEPi(ptr {{.*}}, {{.*}} noundef captures(address) {{%.*}})
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S &S::operator=(int * __attribute__((noescape))) { return *this; }
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// CHECK: define{{.*}} void @_ZN1S2m0EPiS0_(ptr {{.*}}, {{.*}} noundef captures(address) {{%.*}})
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void S::m0(int *, int * __attribute__((noescape))) {}
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// CHECK: define{{.*}} void @_ZN1S3vm1EPiS0_(ptr {{.*}}, {{.*}} noundef captures(address) {{%.*}})
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void S::vm1(int *, int * __attribute__((noescape))) {}
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// CHECK-LABEL: define{{.*}} void @_Z5test0P1SPiS1_(
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// CHECK: call void @_ZN1SC1EPiS0_(ptr {{.*}}, {{.*}}, {{.*}} noundef captures(address) {{.*}})
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// CHECK: call {{.*}} ptr @_ZN1SaSEPi(ptr {{.*}}, {{.*}} noundef captures(address) {{.*}})
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// CHECK: call void @_ZN1S2m0EPiS0_(ptr {{.*}}, {{.*}}, {{.*}} noundef captures(address) {{.*}})
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// CHECK: call void {{.*}}(ptr {{.*}}, {{.*}}, {{.*}} noundef captures(address) {{.*}})
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void test0(S *s, int *p0, int *p1) {
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S t(p0, p1);
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t = p1;
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s->m0(p0, p1);
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s->vm1(p0, p1);
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}
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namespace std {
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typedef decltype(sizeof(0)) size_t;
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}
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// CHECK: define {{.*}} @_ZnwmPv({{.*}}, {{.*}} captures(address) {{.*}})
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void *operator new(std::size_t, void * __attribute__((noescape)) p) {
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return p;
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}
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// CHECK-LABEL: define{{.*}} ptr @_Z5test1Pv(
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// CHECK: %call = call {{.*}} @_ZnwmPv({{.*}}, {{.*}} captures(address) {{.*}})
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void *test1(void *p0) {
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return ::operator new(16, p0);
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}
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// CHECK-LABEL: define{{.*}} void @_Z5test2PiS_(
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// CHECK: call void @"_ZZ5test2PiS_ENK3$_0clES_S_"({{.*}}, {{.*}}, {{.*}} captures(address) {{.*}})
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// CHECK: define internal void @"_ZZ5test2PiS_ENK3$_0clES_S_"({{.*}}, {{.*}}, {{.*}} noundef captures(address) {{%.*}})
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void test2(int *p0, int *p1) {
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auto t = [](int *, int * __attribute__((noescape))){};
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t(p0, p1);
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}
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// CHECK-LABEL: define{{.*}} void @_Z5test3PFvU8noescapePiES_(
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// CHECK: call void {{.*}}(ptr noundef captures(address) {{.*}})
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typedef void (*NoEscapeFunc)(__attribute__((noescape)) int *);
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void test3(NoEscapeFunc f, int *p) {
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f(p);
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}
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namespace TestByref {
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struct S {
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S();
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~S();
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S(const S &);
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int a;
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};
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typedef void (^BlockTy)(void);
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S &getS();
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void noescapefunc(__attribute__((noescape)) BlockTy);
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// Check that __block variables with reference types are handled correctly.
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// CHECK: define{{.*}} void @_ZN9TestByref4testEv(
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// CHECK: %[[X:.*]] = alloca ptr, align 8
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// CHECK: %[[BLOCK:.*]] = alloca <{ ptr, i32, i32, ptr, ptr, ptr }>, align 8
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// CHECK: %[[BLOCK_CAPTURED:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %[[BLOCK]], i32 0, i32 5
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// CHECK: %[[V0:.*]] = load ptr, ptr %[[X]], align 8
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// CHECK: store ptr %[[V0]], ptr %[[BLOCK_CAPTURED]], align 8
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void test() {
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__block S &x = getS();
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noescapefunc(^{ (void)x; });
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}
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}
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