[docs] Add LICENSE.txt to the root of the mono-repo
[llvm-project.git] / clang / test / Sema / warn-alloca.c
blob07fe0f920304da533c427022bac58753c504023d
1 // RUN: %clang_cc1 -DSILENCE -fsyntax-only -verify -Wall %s
2 // RUN: %clang_cc1 -fsyntax-only -verify -Walloca %s
4 #ifdef SILENCE
5 // expected-no-diagnostics
6 #endif
8 void test1(int a) {
9 __builtin_alloca(a);
10 #ifndef SILENCE
11 // expected-warning@-2 {{use of function '__builtin_alloca' is discouraged; there is no way to check for failure but failure may still occur, resulting in a possibly exploitable security vulnerability}}
12 #endif
15 void test2(int a) {
16 __builtin_alloca_with_align(a, 32);
17 #ifndef SILENCE
18 // expected-warning@-2 {{use of function '__builtin_alloca_with_align' is discouraged; there is no way to check for failure but failure may still occur, resulting in a possibly exploitable security vulnerability}}
19 #endif
22 void test3(int a) {
23 __builtin_alloca_uninitialized(a);
24 #ifndef SILENCE
25 // expected-warning@-2 {{use of function '__builtin_alloca_uninitialized' is discouraged; there is no way to check for failure but failure may still occur, resulting in a possibly exploitable security vulnerability}}
26 #endif
29 void test4(int a) {
30 __builtin_alloca_with_align_uninitialized(a, 32);
31 #ifndef SILENCE
32 // expected-warning@-2 {{use of function '__builtin_alloca_with_align_uninitialized' is discouraged; there is no way to check for failure but failure may still occur, resulting in a possibly exploitable security vulnerability}}
33 #endif