34 lines
1.5 KiB
C++
34 lines
1.5 KiB
C++
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection \
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// RUN: -analyzer-config eagerly-assume=false -std=c++20 -verify %s
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template <class T> void clang_analyzer_dump(T);
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void clang_analyzer_eval(bool);
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struct Box {
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int value;
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};
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bool operator ==(Box lhs, Box rhs) {
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return lhs.value == rhs.value;
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}
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template <Box V> void dumps() {
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clang_analyzer_dump(V); // expected-warning {{lazyCompoundVal}}
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clang_analyzer_dump(&V); // expected-warning {{Unknown}}
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clang_analyzer_dump(V.value); // expected-warning {{Unknown}} FIXME: It should be '6 S32b'.
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clang_analyzer_dump(&V.value); // expected-warning {{Unknown}}
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}
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template void dumps<Box{6}>();
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// [temp.param].7.3.2:
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// "All such template parameters in the program of the same type with the
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// same value denote the same template parameter object."
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template <Box A1, Box A2, Box B1, Box B2> void stable_addresses() {
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clang_analyzer_eval(&A1 == &A2); // expected-warning {{UNKNOWN}} FIXME: It should be TRUE.
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clang_analyzer_eval(&B1 == &B2); // expected-warning {{UNKNOWN}} FIXME: It should be TRUE.
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clang_analyzer_eval(&A1 == &B2); // expected-warning {{UNKNOWN}} FIXME: It should be FALSE.
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clang_analyzer_eval(A1 == A2); // expected-warning {{UNKNOWN}} FIXME: It should be TRUE.
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clang_analyzer_eval(B1 == B2); // expected-warning {{UNKNOWN}} FIXME: It should be TRUE.
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clang_analyzer_eval(A1 == B2); // expected-warning {{UNKNOWN}} FIXME: It should be FALSE.
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}
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template void stable_addresses<Box{1}, Box{1}, Box{2}, Box{2}>();
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