1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
// RUN: %clang_cc1 -std=c++1y -o - -emit-llvm -verify %s
// RUN: %clang_cc1 -std=c++1y -fexperimental-new-constant-interpreter -o - -emit-llvm -verify %s
namespace default_arg_temporary {
constexpr bool equals(const float& arg = 1.0f) {
return arg == 1.0f;
}
constexpr const int &x(const int &p = 0) {
return p;
}
struct S {
constexpr S(const int &a = 0) {}
};
void test_default_arg2() {
// This piece of code used to cause an assertion failure in
// CallStackFrame::createTemporary because the same MTE is used to initilize
// both elements of the array (see PR33140).
constexpr S s[2] = {};
// This piece of code used to cause an assertion failure in
// CallStackFrame::createTemporary because multiple CXXDefaultArgExpr share
// the same MTE (see PR33140).
static_assert(equals() && equals(), "");
// Test that constant expression evaluation produces distinct lvalues for
// each call.
static_assert(&x() != &x(), "");
}
// Check that multiple CXXDefaultInitExprs don't cause an assertion failure.
struct A { int &&r = 0; }; // expected-note 2{{default member initializer}}
struct B { A x, y; };
B b = {}; // expected-warning 2{{lifetime extension of temporary created by aggregate initialization using a default member initializer is not yet supported}}
}
|
