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// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -O0 %s -o - 2>&1 -std=c++11 | FileCheck %s
int gi;
namespace lambdas {
// CHECK-LABEL: define void @_ZN7lambdas7LambdasEPc
void Lambdas(char *ptr) {
auto L1 = [](void *const p __attribute__((pass_object_size(0)))) {
return __builtin_object_size(p, 0);
};
int i = 0;
auto L2 = [&i](void *const p __attribute__((pass_object_size(0)))) {
return __builtin_object_size(p, 0) + i;
};
// CHECK: @llvm.objectsize
gi = L1(ptr);
// CHECK: @llvm.objectsize
gi = L2(ptr);
}
// CHECK-DAG: define internal i64 @"_ZZN7lambdas7LambdasEPcENK3$_0clEPvU17pass_object_size0"
// CHECK-NOT: call i64 @llvm.objectsize
// CHECK-DAG: define internal i64 @"_ZZN7lambdas7LambdasEPcENK3$_1clEPvU17pass_object_size0"
// CHECK-NOT: call i64 @llvm.objectsize
}
// This is here instead of in Sema/ because we need to check to make sure the
// proper function is called. If it's not, we'll end up with assertion errors.
namespace addrof {
void OvlFoo(void *const __attribute__((pass_object_size(0)))) {}
void OvlFoo(int *const) {}
// CHECK: define void @_ZN6addrof4TestEv
void Test() {
// Treating parens-only calls as though they were direct is consistent with
// how we handle other implicitly unaddressable functions (e.g. builtins).
// CHECK: call void @_ZN6addrof6OvlFooEPvU17pass_object_size0
(OvlFoo)(nullptr);
// CHECK: call void @_ZN6addrof6OvlFooEPi
(&OvlFoo)(nullptr);
}
}
namespace delegate {
struct A {
A(void *const p __attribute__((pass_object_size(0))));
};
A::A(void *const p __attribute__((pass_object_size(0)))) {}
// Ensure that we forward the size through a delegating constructor call.
// CHECK: define void @_ZN8delegate1AC1EPvU17pass_object_size0({{[^,]*}}, i8*{{[^,]*}}, i64{{[^,]*}})
// CHECK: call void @_ZN8delegate1AC2EPvU17pass_object_size0({{[^,]*}}, i8*{{[^,]*}}, i64{{[^,]*}})
}
namespace variadic {
// We had an issue where variadic member/operator calls with pass_object_size
// would cause crashes.
struct AsCtor {
AsCtor(const char *const c __attribute__((pass_object_size(0))), double a,
...) {}
};
struct AsMember {
void bar(const char *const c __attribute__((pass_object_size(0))), double a,
...) {}
void operator()(const char *const c __attribute__((pass_object_size(0))),
double a, ...) {}
};
// CHECK-LABEL: define void @_ZN8variadic4testEv()
void test() {
// CHECK-RE: call{{[^@]+}}@_ZN8variadic6AsCtorC1EPKcU17pass_object_size0dz
AsCtor("a", 1.0);
// CHECK-RE: call{{[^@]+}}@_ZN8variadic8AsMember3barEPKcU17pass_object_size0dz
AsMember{}.bar("a", 1.0);
// CHECK-RE: call{{[^@]+}}@_ZN8variadic8AsMemberclEPKcU17pass_object_size0dz
AsMember{}("a", 1.0);
}
}
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