a053929854
When the evaluator encounters an error-dependent returnstmt, before this patch it returned a ESR_Returned without setting the result, the callsides think this is a successful execution, and try to access the Result which causes the crash. The fix is to always return failed as we don't know the result of the error-dependent return stmt. Differential Revision: https://reviews.llvm.org/D92969
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
// RUN: %clang_cc1 %s -std=c++20 -fsyntax-only -fcxx-exceptions -verify
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// verify no value-dependent-assertion crash in constexpr function body and no
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// bogus diagnostics.
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class Foo {
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constexpr Foo() {
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while (invalid()) {} // expected-error {{use of undeclared identifier}}
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if (invalid()) {} // expected-error {{use of undeclared identifier}}
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}
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};
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constexpr void test1() {
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while (invalid()) {} // expected-error {{use of undeclared identifier}}
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if (invalid()) {} // expected-error {{use of undeclared identifier}}
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}
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struct A {
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int *p = new int(invalid()); // expected-error {{use of undeclared identifier}}
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constexpr ~A() { delete p; }
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};
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constexpr int test2() {
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A a;
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return 1;
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}
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constexpr int test3() {
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return invalid(); // expected-error {{use of undeclared identifier}}
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}
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constexpr int test4() {
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if (invalid()) // expected-error {{use of undeclared identifier}}
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return 1;
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else
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return 0;
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}
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constexpr int test5() { // expected-error {{constexpr function never produce}}
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for (;; a++); // expected-error {{use of undeclared identifier}} \
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expected-note {{constexpr evaluation hit maximum step limit; possible infinite loop?}}
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return 1;
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}
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constexpr int test6() { // expected-error {{constexpr function never produce}}
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int n = 0;
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switch (n) {
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for (;; a++) { // expected-error {{use of undeclared identifier}}
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case 0:; // expected-note {{constexpr evaluation hit maximum step limit; possible infinite loop?}}
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}
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}
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return 0;
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}
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constexpr bool test7() {
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for (int n = 0; ; invalid()) { if (n == 1) return true; } // expected-error {{use of undeclared identifier}}
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throw "bad";
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}
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constexpr void test8() {
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do {} while (invalid()); // expected-error {{use of undeclared identifier}}
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throw "bad";
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}
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template<int x> constexpr int f(int y) { // expected-note {{candidate template ignored}}
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return x * y;
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}
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constexpr int test9(int x) {
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return f<1>(f<x>(1)); // expected-error {{no matching function for call to 'f'}}
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}
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constexpr int test10() { return undef(); } // expected-error {{use of undeclared identifier 'undef'}}
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static_assert(test10() <= 1, "should not crash"); // expected-error {{static_assert expression is not an integral constant expression}}
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