35 lines · c
1// RUN: %clang_cc1 -DSILENCE -fsyntax-only -verify -Wall %s2// RUN: %clang_cc1 -fsyntax-only -verify -Walloca %s3 4#ifdef SILENCE5 // expected-no-diagnostics6#endif7 8void test1(int a) {9 __builtin_alloca(a);10#ifndef SILENCE11 // 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#endif13}14 15void test2(int a) {16 __builtin_alloca_with_align(a, 32);17#ifndef SILENCE18 // 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#endif20}21 22void test3(int a) {23 __builtin_alloca_uninitialized(a);24#ifndef SILENCE25 // 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#endif27}28 29void test4(int a) {30 __builtin_alloca_with_align_uninitialized(a, 32);31#ifndef SILENCE32 // 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#endif34}35