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Rollup merge of #128173 - compiler-errors:misused-intrinsics, r=oli-obk

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Remove crashes for misuses of intrinsics

All of these do not crash if the feature gate is removed. An ICE due *opting into* the intrinsics feature gate is not a bug that needs to be fixed, but instead a misuse of an internal-only API.

See https://github.com/rust-lang/compiler-team/issues/620

The last two issues are already closed anyways, but:
Fixes #97501
Fixes #111699
Fixes #101962
This commit is contained in:
Matthias Krüger 2024-07-25 16:48:22 +02:00 committed by GitHub
commit c98d704c46
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11
tests/crashes/101962.rs
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@ -1,11 +0,0 @@
//@ known-bug: #101962
#![feature(core_intrinsics)]
pub fn wrapping<T: Copy>(a: T, b: T) {
let _z = core::intrinsics::wrapping_mul(a, b);
}
fn main() {
wrapping(1,2);
}

14
tests/crashes/111699.rs
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@ -1,14 +0,0 @@
//@ known-bug: #111699
//@ edition:2021
//@ compile-flags: -Copt-level=0
#![feature(core_intrinsics)]
use std::intrinsics::offset;
fn main() {
let a = [1u8, 2, 3];
let ptr: *const u8 = a.as_ptr();
unsafe {
assert_eq!(*offset(ptr, 0), 1);
}
}

22
tests/crashes/97501.rs
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@ -1,22 +0,0 @@
//@ known-bug: #97501
#![feature(core_intrinsics)]
use std::intrinsics::wrapping_add;
#[derive(Clone, Copy)]
struct WrapInt8 {
value: u8
}
impl std::ops::Add for WrapInt8 {
type Output = WrapInt8;
fn add(self, other: WrapInt8) -> WrapInt8 {
wrapping_add(self, other)
}
}
fn main() {
let p = WrapInt8 { value: 123 };
let q = WrapInt8 { value: 234 };
println!("{}", (p + q).value);
}