bjoernager/rust
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disable size asserts in the compiler when randomizing layouts

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The 8472 2022-09-02 20:17:20 +02:00
parent f3bc08adbd
commit 5bf8eeb9f3
8 changed files with 24 additions and 0 deletions
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11
compiler/rustc_index/src/lib.rs
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@ -33,8 +33,19 @@ pub use vec::IndexVec;
///
/// </div>
#[macro_export]
#[cfg(not(feature = "rustc_randomized_layouts"))]
macro_rules! static_assert_size {
($ty:ty, $size:expr) => {
const _: [(); $size] = [(); ::std::mem::size_of::<$ty>()];
};
}
#[macro_export]
#[cfg(feature = "rustc_randomized_layouts")]
macro_rules! static_assert_size {
($ty:ty, $size:expr) => {
// no effect other than using the statements.
// struct sizes are not deterministic under randomized layouts
const _: (usize, usize) = ($size, ::std::mem::size_of::<$ty>());
};
}