llvm-project/clang/test/Analysis/handle_constructors_with_new_array.cpp
Donát Nagy c3f8dd1228
[NFC][analyzer] Use %clang_analyze_cc1 consistently (#145895)
A large majority of the LIT tests of the clang static analyzer use RUN
lines with the placeholder `%clang_analyze_cc1` which expands to
`%clang_cc1 -analyze -setup-static-analyzer` where the only effect of
`-setup-static-analyzer` is that it ensures that the macro
`__clang_analyzer__` is defined. However, there were some tests that
used `%clang_cc1 -analyze` directly; this commit changes those to using
`%clang_analyze_cc1` for the sake of consistency.

Previously `%clang_analyze_cc1` did not work within the directory
`exploded-graph-rewriter` (because that directory has its own custom
`lit.local.cfg`) but this problem was eliminated by the recent commit
40cc4379cda6e0d6efe72c55d1968f9cf427a16a, so it was possible to resolve
and delete the FIXME comments asking for this change.

There are a few tests that use `%clang --analyze` or other command-line
flags (e.g. help flags), those are not affected by this change.

This cleanup was discussed in the discourse thread
https://discourse.llvm.org/t/taking-ownership-of-clang-test-analysis/84689/11
2025-06-30 12:59:51 +02:00

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// RUN: %clang_analyze_cc1 \
// RUN: -analyzer-checker=core,debug.ExprInspection %s -verify
// These test cases demonstrate lack of Static Analyzer features.
// The FIXME: tags indicate where we expect different output.
// Handle constructors within new[].
// When an array of objects is allocated using the operator new[],
// constructors for all elements of the array are called.
// We should model (potentially some of) such evaluations,
// and the same applies for destructors called from operator delete[].
void clang_analyzer_eval(bool);
struct init_with_list {
int a;
init_with_list() : a(1) {}
};
struct init_in_body {
int a;
init_in_body() { a = 1; }
};
struct init_default_member {
int a = 1;
};
void test_automatic() {
init_with_list a1;
init_in_body a2;
init_default_member a3;
clang_analyzer_eval(a1.a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a2.a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a3.a == 1); // expected-warning {{TRUE}}
}
void test_dynamic() {
auto *a1 = new init_with_list;
auto *a2 = new init_in_body;
auto *a3 = new init_default_member;
clang_analyzer_eval(a1->a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a2->a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a3->a == 1); // expected-warning {{TRUE}}
delete a1;
delete a2;
delete a3;
}
void test_automatic_aggregate() {
init_with_list a1[1];
init_in_body a2[1];
init_default_member a3[1];
clang_analyzer_eval(a1[0].a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a2[0].a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a3[0].a == 1); // expected-warning {{TRUE}}
}
void test_dynamic_aggregate() {
auto *a1 = new init_with_list[1];
auto *a2 = new init_in_body[1];
auto *a3 = new init_default_member[1];
clang_analyzer_eval(a1[0].a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a2[0].a == 1); // expected-warning {{TRUE}}
clang_analyzer_eval(a3[0].a == 1); // expected-warning {{TRUE}}
delete[] a1;
delete[] a2;
delete[] a3;
}