| // Verifies that MemorySanitizer track-origins level can be controlled |
| // with -Zsanitizer-memory-track-origins option. |
| // |
| // needs-sanitizer-memory |
| // revisions:MSAN-0 MSAN-1 MSAN-2 MSAN-1-LTO MSAN-2-LTO |
| // |
| //[MSAN-0] compile-flags: -Zsanitizer=memory |
| //[MSAN-1] compile-flags: -Zsanitizer=memory -Zsanitizer-memory-track-origins=1 |
| //[MSAN-2] compile-flags: -Zsanitizer=memory -Zsanitizer-memory-track-origins |
| //[MSAN-1-LTO] compile-flags: -Zsanitizer=memory -Zsanitizer-memory-track-origins=1 -C lto=fat |
| //[MSAN-2-LTO] compile-flags: -Zsanitizer=memory -Zsanitizer-memory-track-origins -C lto=fat |
| |
| #![crate_type="lib"] |
| |
| // MSAN-0-NOT: @__msan_track_origins |
| // MSAN-1: @__msan_track_origins = weak_odr {{.*}}constant i32 1 |
| // MSAN-2: @__msan_track_origins = weak_odr {{.*}}constant i32 2 |
| // MSAN-1-LTO: @__msan_track_origins = weak_odr {{.*}}constant i32 1 |
| // MSAN-2-LTO: @__msan_track_origins = weak_odr {{.*}}constant i32 2 |
| // |
| // MSAN-0-LABEL: define void @copy( |
| // MSAN-1-LABEL: define void @copy( |
| // MSAN-2-LABEL: define void @copy( |
| #[no_mangle] |
| pub fn copy(dst: &mut i32, src: &i32) { |
| // MSAN-0-NOT: call i32 @__msan_chain_origin( |
| // MSAN-1-NOT: call i32 @__msan_chain_origin( |
| // MSAN-2: call i32 @__msan_chain_origin( |
| *dst = *src; |
| } |
