1 | // RUN: %clang -x c -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
2 | // RUN: %clang -x c -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
3 | // RUN: %clang -x c -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
4 | // RUN: %clang -x c -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
5 | |
6 | // RUN: %clangxx -x c++ -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
7 | // RUN: %clangxx -x c++ -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
8 | // RUN: %clangxx -x c++ -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
9 | // RUN: %clangxx -x c++ -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
10 | |
11 | #include <stdlib.h> |
12 | |
13 | char *__attribute__((alloc_align(2))) |
14 | passthrough(char *x, unsigned long alignment) { |
15 | return x; |
16 | } |
17 | |
18 | unsigned long alignment; |
19 | |
20 | int main(int argc, char* argv[]) { |
21 | char *ptr = (char *)malloc(size: 2); |
22 | |
23 | alignment = 0x8000; |
24 | |
25 | passthrough(x: ptr + 1, alignment); |
26 | // CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-1]]:3: runtime error: assumption of 32768 byte alignment for pointer of type 'char *' failed |
27 | // CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-14]]:22: note: alignment assumption was specified here |
28 | // CHECK: 0x{{.*}}: note: address is {{.*}} aligned, misalignment offset is {{.*}} byte |
29 | |
30 | free(ptr: ptr); |
31 | |
32 | return 0; |
33 | } |
34 | |