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Rollup merge of #101473 - nnethercote:mir-size-assertions, r=lqd

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Add more size assertions for MIR types.

And move them into a module, as has been done previously for AST, HIR,
etc.

r? `@lqd`
This commit is contained in:
Guillaume Gomez 2022-09-06 17:00:30 +02:00 committed by GitHub
commit f21b6129a0
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1 changed files with 14 additions and 8 deletions
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22
compiler/rustc_middle/src/mir/mod.rs
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@ -839,10 +839,6 @@ pub struct LocalDecl<'tcx> {
pub source_info: SourceInfo,
}
// `LocalDecl` is used a lot. Make sure it doesn't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
static_assert_size!(LocalDecl<'_>, 56);
/// Extra information about a some locals that's used for diagnostics and for
/// classifying variables into local variables, statics, etc, which is needed e.g.
/// for unsafety checking.
@ -1317,10 +1313,6 @@ pub struct Statement<'tcx> {
pub kind: StatementKind<'tcx>,
}
// `Statement` is used a lot. Make sure it doesn't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
static_assert_size!(Statement<'_>, 32);
impl Statement<'_> {
/// Changes a statement to a nop. This is both faster than deleting instructions and avoids
/// invalidating statement indices in `Location`s.
@ -2900,3 +2892,17 @@ impl Location {
}
}
}
// Some nodes are used a lot. Make sure they don't unintentionally get bigger.
#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
mod size_asserts {
use super::*;
use rustc_data_structures::static_assert_size;
// These are in alphabetical order, which is easy to maintain.
static_assert_size!(BasicBlockData<'_>, 144);
static_assert_size!(LocalDecl<'_>, 56);
static_assert_size!(Statement<'_>, 32);
static_assert_size!(StatementKind<'_>, 16);
static_assert_size!(Terminator<'_>, 112);
static_assert_size!(TerminatorKind<'_>, 96);
}