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// RUN: %clang_cc1 -fcxx-exceptions -std=c++20 -fexperimental-new-constant-interpreter -verify %s
// RUN: %clang_cc1 -fcxx-exceptions -std=c++20 -verify=ref %s
namespace Throw {
constexpr int ConditionalThrow(bool t) {
if (t)
throw 4; // expected-note {{subexpression not valid in a constant expression}} \
// ref-note {{subexpression not valid in a constant expression}}
return 0;
}
static_assert(ConditionalThrow(false) == 0, "");
static_assert(ConditionalThrow(true) == 0, ""); // expected-error {{not an integral constant expression}} \
// expected-note {{in call to 'ConditionalThrow(true)'}} \
// ref-error {{not an integral constant expression}} \
// ref-note {{in call to 'ConditionalThrow(true)'}}
constexpr int Throw() { // expected-error {{never produces a constant expression}} \
// ref-error {{never produces a constant expression}}
throw 5; // expected-note {{subexpression not valid in a constant expression}} \
// ref-note {{subexpression not valid in a constant expression}}
return 0;
}
constexpr int NoSubExpr() { // ref-error {{never produces a constant expression}} \
// expected-error {{never produces a constant expression}}
throw; // ref-note 2{{subexpression not valid}} \
// expected-note 2{{subexpression not valid}}
return 0;
}
static_assert(NoSubExpr() == 0, ""); // ref-error {{not an integral constant expression}} \
// ref-note {{in call to}} \
// expected-error {{not an integral constant expression}} \
// expected-note {{in call to}}
}
namespace Asm {
constexpr int ConditionalAsm(bool t) {
if (t)
asm(""); // expected-note {{subexpression not valid in a constant expression}} \
// ref-note {{subexpression not valid in a constant expression}}
return 0;
}
static_assert(ConditionalAsm(false) == 0, "");
static_assert(ConditionalAsm(true) == 0, ""); // expected-error {{not an integral constant expression}} \
// expected-note {{in call to 'ConditionalAsm(true)'}} \
// ref-error {{not an integral constant expression}} \
// ref-note {{in call to 'ConditionalAsm(true)'}}
constexpr int Asm() { // expected-error {{never produces a constant expression}} \
// ref-error {{never produces a constant expression}}
__asm volatile(""); // expected-note {{subexpression not valid in a constant expression}} \
// ref-note {{subexpression not valid in a constant expression}}
return 0;
}
}
namespace Casts {
constexpr int a = reinterpret_cast<int>(12); // expected-error {{must be initialized by a constant expression}} \
// expected-note {{reinterpret_cast is not allowed}} \
// ref-error {{must be initialized by a constant expression}} \
// ref-note {{reinterpret_cast is not allowed}}
}
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