rust/tests/codegen/sanitizer/memory-track-origins.rs
Nicholas Nethercote 72800d3b89 Run rustfmt on tests/codegen/.
Except for `simd-intrinsic/`, which has a lot of files containing
multiple types like `u8x64` which really are better when hand-formatted.

There is a surprising amount of two-space indenting in this directory.

Non-trivial changes:
- `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the
  test.
- `rustfmt::skip` used in a few places where hand-formatting read more
  nicely: `enum/enum-match.rs`
- Line number adjustments needed for the expected output of
  `debug-column.rs` and `coroutine-debug.rs`.
2024-05-31 15:56:43 +10:00

32 lines
1.2 KiB
Rust

// 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
//
//@ compile-flags: -Zsanitizer=memory -Ctarget-feature=-crt-static
//@[MSAN-0] compile-flags:
//@[MSAN-1] compile-flags: -Zsanitizer-memory-track-origins=1
//@[MSAN-2] compile-flags: -Zsanitizer-memory-track-origins
//@[MSAN-1-LTO] compile-flags: -Zsanitizer-memory-track-origins=1 -C lto=fat
//@[MSAN-2-LTO] compile-flags: -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;
}