llvm-project/clang/test/Analysis/loop-block-counts.c

30 lines
729 B
C

// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -verify %s
void clang_analyzer_eval(int);
void callee(void **p) {
int x;
*p = &x;
// expected-warning@-1 {{Address of stack memory associated with local \
variable 'x' is still referred to by the stack variable 'arr' upon \
returning to the caller}}
}
void loop(void) {
void *arr[2];
for (int i = 0; i < 2; ++i)
callee(&arr[i]);
// FIXME: Should be UNKNOWN.
clang_analyzer_eval(arr[0] == arr[1]); // expected-warning{{FALSE}}
}
void loopWithCall(void) {
void *arr[2];
for (int i = 0; i < 2; ++i) {
int x;
arr[i] = &x;
}
// FIXME: Should be UNKNOWN.
clang_analyzer_eval(arr[0] == arr[1]); // expected-warning{{TRUE}}
}