|  | // RUN: %clangxx_hwasan -O0 %s -o %t | 
|  | // RUN: %env_hwasan_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s | 
|  | // RUN: %env_hwasan_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL | 
|  |  | 
|  | // REQUIRES: stable-runtime | 
|  |  | 
|  | #include <stdio.h> | 
|  | #include <stdlib.h> | 
|  |  | 
|  | int main() { | 
|  | void *p = reinterpret_cast<void*>(42); | 
|  | int res = posix_memalign(&p, 17, 100); | 
|  | // CHECK: ERROR: HWAddressSanitizer: invalid alignment requested in posix_memalign: 17 | 
|  | // CHECK: {{#0 0x.* in .*posix_memalign}} | 
|  | // CHECK: {{#1 0x.* in main .*posix_memalign-alignment.cpp:}}[[@LINE-3]] | 
|  | // CHECK: SUMMARY: HWAddressSanitizer: invalid-posix-memalign-alignment | 
|  |  | 
|  | printf("pointer after failed posix_memalign: %zd\n", (size_t)p); | 
|  | // CHECK-NULL: pointer after failed posix_memalign: 42 | 
|  |  | 
|  | return 0; | 
|  | } |