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159 lines
4.3 KiB
C++
159 lines
4.3 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -verify %s
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void clang_analyzer_warnIfReached();
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// ============================================================================
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// Group A: Compound statement (block)
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// ============================================================================
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void suppress_compound_suppressed() {
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[[clang::suppress]] {
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clang_analyzer_warnIfReached(); // no-warning
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}
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}
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void suppress_compound_unsuppressed() {
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{
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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}
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}
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// ============================================================================
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// Group B: If statement
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// ============================================================================
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void suppress_if(bool coin) {
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[[clang::suppress]] if (coin) {
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clang_analyzer_warnIfReached(); // no-warning
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}
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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}
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void suppress_if_else(bool coin) {
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[[clang::suppress]] if (coin) {
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clang_analyzer_warnIfReached(); // no-warning
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} else {
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clang_analyzer_warnIfReached(); // no-warning: entire if-else is suppressed
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}
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}
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void unsuppressed_if_else(bool coin) {
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if (coin) {
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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} else {
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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}
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}
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// ============================================================================
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// Group C: Loop statements
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// ============================================================================
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void suppress_for(int n) {
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[[clang::suppress]] for (int i = 0; i < n; ++i) {
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clang_analyzer_warnIfReached(); // no-warning
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}
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}
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void suppress_while(int n) {
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[[clang::suppress]] while (--n) {
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clang_analyzer_warnIfReached(); // no-warning
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}
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}
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void suppress_do_while(int n) {
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[[clang::suppress]] do {
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clang_analyzer_warnIfReached(); // no-warning
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} while (--n);
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}
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void unsuppressed_for(int n) {
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for (int i = 0; i < n; ++i) {
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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}
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}
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void suppress_range_for() {
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int arr[] = {1, 2, 3};
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[[clang::suppress]] for (int x : arr) {
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clang_analyzer_warnIfReached(); // no-warning
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(void)x;
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}
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}
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// ============================================================================
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// Group D: Switch statement
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// ============================================================================
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int suppress_switch(int n) {
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[[clang::suppress]] switch (n) {
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case 1:
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return clang_analyzer_warnIfReached(), 1; // no-warning
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default:
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break;
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}
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return 0;
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}
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int unsuppressed_switch(int n) {
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switch (n) {
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case 1:
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return clang_analyzer_warnIfReached(), 1; // expected-warning{{REACHABLE}}
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default:
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break;
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}
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return 0;
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}
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// ============================================================================
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// Group E: Return statement
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// ============================================================================
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int suppress_return() {
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[[clang::suppress]] return clang_analyzer_warnIfReached(), 1; // no-warning
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}
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int unsuppressed_return() {
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return clang_analyzer_warnIfReached(), 1; // expected-warning{{REACHABLE}}
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}
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// ============================================================================
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// Group F: Expression statement
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// ============================================================================
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void suppress_expr_stmt() {
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[[clang::suppress]] clang_analyzer_warnIfReached(); // no-warning
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}
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void unsuppressed_expr_stmt() {
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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}
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// ============================================================================
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// Group G: Nested suppressed blocks
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// ============================================================================
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void nested_suppression() {
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[[clang::suppress]] {
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[[clang::suppress]] {
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clang_analyzer_warnIfReached(); // no-warning
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}
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}
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}
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// ============================================================================
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// Group H: Suppression on single statement within method
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// ============================================================================
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struct H_ClassWithMethods {
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void method() {
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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[[clang::suppress]] clang_analyzer_warnIfReached(); // no-warning
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clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
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}
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};
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void test_H() {
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H_ClassWithMethods().method();
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}
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