1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
// RUN: %clang_analyze_cc1 %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=debug.ExprInspection \
// RUN: -analyzer-config eagerly-assume=false \
// RUN: -verify
// In this test we check whether the solver's symbol simplification mechanism
// is capable of re-assuming simiplified symbols.
void clang_analyzer_eval(bool);
void clang_analyzer_warnIfReached();
void test_reassume_false_range(int x, int y) {
if (x + y != 0) // x + y == 0
return;
if (x != 1) // x == 1
return;
clang_analyzer_eval(y == -1); // expected-warning{{TRUE}}
}
void test_reassume_true_range(int x, int y) {
if (x + y != 1) // x + y == 1
return;
if (x != 1) // x == 1
return;
clang_analyzer_eval(y == 0); // expected-warning{{TRUE}}
}
void test_reassume_inclusive_range(int x, int y) {
if (x + y < 0 || x + y > 1) // x + y: [0, 1]
return;
if (x != 1) // x == 1
return;
// y: [-1, 0]
clang_analyzer_eval(y > 0); // expected-warning{{FALSE}}
clang_analyzer_eval(y < -1);// expected-warning{{FALSE}}
}
|
