39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
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// RUN: %clang_cc1 -std=c++1y -S -o - -emit-llvm -verify %s
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namespace default_arg_temporary {
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constexpr bool equals(const float& arg = 1.0f) {
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return arg == 1.0f;
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}
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constexpr const int &x(const int &p = 0) {
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return p;
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}
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struct S {
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constexpr S(const int &a = 0) {}
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};
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void test_default_arg2() {
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// This piece of code used to cause an assertion failure in
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// CallStackFrame::createTemporary because the same MTE is used to initilize
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// both elements of the array (see PR33140).
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constexpr S s[2] = {};
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// This piece of code used to cause an assertion failure in
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// CallStackFrame::createTemporary because multiple CXXDefaultArgExpr share
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// the same MTE (see PR33140).
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static_assert(equals() && equals(), "");
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// Test that constant expression evaluation produces distinct lvalues for
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// each call.
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static_assert(&x() != &x(), "");
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}
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// Check that multiple CXXDefaultInitExprs don't cause an assertion failure.
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struct A { int &&r = 0; }; // expected-note 2{{default member initializer}}
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struct B { A x, y; };
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B b = {}; // expected-warning 2{{not supported}}
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}
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