forked from OSchip/llvm-project
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-inline-call -analyzer-store region -verify %s
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int test1_f1() {
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int y = 1;
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y++;
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return y;
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}
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void test1_f2() {
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int x = 1;
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x = test1_f1();
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if (x == 1) {
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int *p = 0;
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*p = 3; // no-warning
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}
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if (x == 2) {
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int *p = 0;
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*p = 3; // expected-warning{{Dereference of null pointer (loaded from variable 'p')}}
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}
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}
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// Test that inlining works when the declared function has less arguments
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// than the actual number in the declaration.
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void test2_f1() {}
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int test2_f2();
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void test2_f3() {
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test2_f1(test2_f2()); // expected-warning{{too many arguments in call to 'test2_f1'}}
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}
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// Test that inlining works with recursive functions.
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unsigned factorial(unsigned x) {
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if (x <= 1)
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return 1;
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return x * factorial(x - 1);
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}
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void test_factorial() {
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if (factorial(3) == 6) {
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int *p = 0;
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*p = 0xDEADBEEF; // expected-warning {{null}}
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}
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else {
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int *p = 0;
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*p = 0xDEADBEEF; // no-warning
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}
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}
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void test_factorial_2() {
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unsigned x = factorial(3);
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if (x == factorial(3)) {
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int *p = 0;
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*p = 0xDEADBEEF; // expected-warning {{null}}
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}
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else {
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int *p = 0;
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*p = 0xDEADBEEF; // no-warning
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}
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}
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