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TheRock/compiler/amd-llvm/clang/test/Analysis/clang-suppress/statements.cpp
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derek.holloway 7502bf64a4
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159 lines
4.3 KiB
C++

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