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// RUN: %clang_cc1 -fexperimental-new-constant-interpreter -fconstexpr-depth=100 -verify %s
// RUN: %clang_cc1 -fconstexpr-depth=100 -verify=ref %s
constexpr int f(int a) {
if (a == 100)
return 1 / 0; // expected-warning {{division by zero is undefined}} \
// ref-warning {{division by zero is undefined}}
return f(a + 1); // ref-note {{exceeded maximum depth of 100 calls}} \
// ref-note {{in call to 'f(99)'}} \
// ref-note {{in call to 'f(98)'}} \
// ref-note {{in call to 'f(97)'}} \
// ref-note {{in call to 'f(96)'}} \
// ref-note {{in call to 'f(95)'}} \
// ref-note {{skipping 90 calls in backtrace}} \
// ref-note {{in call to 'f(4)'}} \
// ref-note {{in call to 'f(3)'}} \
// ref-note {{in call to 'f(2)'}} \
// ref-note {{in call to 'f(1)'}} \
// expected-note {{exceeded maximum depth of 100 calls}} \
// expected-note {{in call to 'f(99)'}} \
// expected-note {{in call to 'f(98)'}} \
// expected-note {{in call to 'f(97)'}} \
// expected-note {{in call to 'f(96)'}} \
// expected-note {{in call to 'f(95)'}} \
// expected-note {{skipping 90 calls in backtrace}} \
// expected-note {{in call to 'f(4)'}} \
// expected-note {{in call to 'f(3)'}} \
// expected-note {{in call to 'f(2)'}} \
// expected-note {{in call to 'f(1)'}}
}
static_assert(f(0) == 100, ""); // ref-error {{not an integral constant expression}} \
// ref-note {{in call to 'f(0)'}} \
// expected-error {{not an integral constant expression}} \
// expected-note {{in call to 'f(0)'}}
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