Files
clang-p2996/compiler-rt/test/dfsan/force_zero.c
Fangrui Song 975327a609 [dfsan][test] Replace REQUIRES: x86_64-target-arch with lit.cfg.py check
Make it easier to support a new architecture.

Reviewed By: #sanitizers, vitalybuka

Differential Revision: https://reviews.llvm.org/D140744
2022-12-28 15:35:09 -08:00

31 lines
662 B
C

// RUN: %clang_dfsan %s -fsanitize-ignorelist=%S/Inputs/flags_abilist.txt -DFORCE_ZERO_LABELS -o %t && %run %t
// RUN: %clang_dfsan %s -o %t && %run %t
#include <sanitizer/dfsan_interface.h>
#include <assert.h>
int function_to_force_zero(int i, int* out) {
*out = i;
return i;
}
int main(void) {
int i = 1;
dfsan_label i_label = 2;
dfsan_set_label(i_label, &i, sizeof(i));
int out = 0;
int ret = function_to_force_zero(i, &out);
#ifdef FORCE_ZERO_LABELS
assert(dfsan_get_label(out) == 0);
assert(dfsan_get_label(ret) == 0);
#else
assert(dfsan_get_label(out) == i_label);
assert(dfsan_get_label(ret) == i_label);
#endif
return 0;
}