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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
commit | 2ff14448863ac1a1dd9533461708e29aae170c2d (patch) | |
tree | 85b9fea2bbfe3f06473cfa381eed11f273b57c5c /src/test/ui/sanitize | |
parent | Adding debian version 1.64.0+dfsg1-1. (diff) | |
download | rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip |
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/sanitize/memory-eager.rs | 38 | ||||
-rw-r--r-- | src/test/ui/sanitize/memory.rs | 14 |
2 files changed, 47 insertions, 5 deletions
diff --git a/src/test/ui/sanitize/memory-eager.rs b/src/test/ui/sanitize/memory-eager.rs new file mode 100644 index 000000000..cc0593ec0 --- /dev/null +++ b/src/test/ui/sanitize/memory-eager.rs @@ -0,0 +1,38 @@ +// needs-sanitizer-support +// needs-sanitizer-memory +// min-llvm-version: 14.0.0 +// +// revisions: unoptimized optimized +// +// [optimized]compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins -O +// [unoptimized]compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins +// +// run-fail +// error-pattern: MemorySanitizer: use-of-uninitialized-value +// error-pattern: Uninitialized value was created by an allocation +// error-pattern: in the stack frame +// +// This test case intentionally limits the usage of the std, +// since it will be linked with an uninstrumented version of it. + +#![feature(core_intrinsics)] +#![feature(start)] +#![feature(bench_black_box)] + +use std::hint::black_box; +use std::mem::MaybeUninit; + +#[inline(never)] +#[no_mangle] +#[allow(invalid_value)] +fn random() -> char { + let r = unsafe { MaybeUninit::uninit().assume_init() }; + // Avoid optimizing everything out. + black_box(r) +} + +#[start] +fn main(_: isize, _: *const *const u8) -> isize { + random(); + 0 +} diff --git a/src/test/ui/sanitize/memory.rs b/src/test/ui/sanitize/memory.rs index b53f19a5b..14d4de65d 100644 --- a/src/test/ui/sanitize/memory.rs +++ b/src/test/ui/sanitize/memory.rs @@ -1,12 +1,15 @@ // needs-sanitizer-support // needs-sanitizer-memory // -// compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins -O +// revisions: unoptimized optimized +// +// [optimized]compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins -O +// [unoptimized]compile-flags: -Z sanitizer=memory -Zsanitizer-memory-track-origins // // run-fail // error-pattern: MemorySanitizer: use-of-uninitialized-value // error-pattern: Uninitialized value was created by an allocation -// error-pattern: in the stack frame of function 'main' +// error-pattern: in the stack frame // // This test case intentionally limits the usage of the std, // since it will be linked with an uninstrumented version of it. @@ -14,6 +17,7 @@ #![feature(core_intrinsics)] #![feature(start)] #![feature(bench_black_box)] +#![allow(invalid_value)] use std::hint::black_box; use std::mem::MaybeUninit; @@ -21,9 +25,9 @@ use std::mem::MaybeUninit; #[inline(never)] #[no_mangle] fn random() -> [isize; 32] { - let r = unsafe { MaybeUninit::uninit().assume_init() }; + let r = MaybeUninit::uninit(); // Avoid optimizing everything out. - black_box(r) + unsafe { std::intrinsics::volatile_load(r.as_ptr()) } } #[inline(never)] @@ -38,6 +42,6 @@ fn xor(a: &[isize]) -> isize { #[start] fn main(_: isize, _: *const *const u8) -> isize { - let r = random(); + let r = black_box(random as fn() -> [isize; 32])(); xor(&r) } |