Files
clang-p2996/compiler-rt/test/dfsan/basic.c
Andrew Browne 61ec2148c5 [DFSan] Remove -dfsan-args-abi support in favor of TLS.
ArgsABI was originally added in https://reviews.llvm.org/D965

Current benchmarking does not show a significant difference.
There is no need to maintain both ABIs.

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D111097
2021-10-08 11:18:36 -07:00

30 lines
704 B
C

// RUN: %clang_dfsan %s -o %t && %run %t
//
// REQUIRES: x86_64-target-arch
// Tests that labels are propagated through loads and stores.
#include <sanitizer/dfsan_interface.h>
#include <assert.h>
int main(void) {
int i = 1;
dfsan_label i_label = 1;
dfsan_set_label(i_label, &i, sizeof(i));
dfsan_label new_label = dfsan_get_label(i);
assert(i_label == new_label);
dfsan_label read_label = dfsan_read_label(&i, sizeof(i));
assert(i_label == read_label);
dfsan_label j_label = 2;
dfsan_add_label(j_label, &i, sizeof(i));
read_label = dfsan_read_label(&i, sizeof(i));
assert(dfsan_has_label(read_label, i_label));
assert(dfsan_has_label(read_label, j_label));
return 0;
}