bjoernager/rust
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Improve comment formatting.

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By reflowing comment lines that are too long, and a few that are very
short. Plus some other very minor formatting tweaks.
This commit is contained in:
Nicholas Nethercote 2024-08-28 08:24:10 +10:00
parent c2f74c3f92
commit 8235af07d2
27 changed files with 151 additions and 111 deletions
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5
compiler/rustc_mir_transform/src/large_enums.rs
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@ -16,8 +16,7 @@ use rustc_target::abi::{HasDataLayout, Size, TagEncoding, Variants};
/// Large([u32; 1024]),
/// }
/// ```
/// Instead of emitting moves of the large variant,
/// Perform a memcpy instead.
/// Instead of emitting moves of the large variant, perform a memcpy instead.
/// Based off of [this HackMD](https://hackmd.io/@ft4bxUsFT5CEUBmRKYHr7w/rJM8BBPzD).
///
/// In summary, what this does is at runtime determine which enum variant is active,
@ -34,6 +33,7 @@ impl<'tcx> crate::MirPass<'tcx> for EnumSizeOpt {
// https://github.com/rust-lang/rust/pull/85158#issuecomment-1101836457
sess.opts.unstable_opts.unsound_mir_opts || sess.mir_opt_level() >= 3
}
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
// NOTE: This pass may produce different MIR based on the alignment of the target
// platform, but it will still be valid.
@ -116,6 +116,7 @@ impl EnumSizeOpt {
let alloc = tcx.reserve_and_set_memory_alloc(tcx.mk_const_alloc(alloc));
Some((*adt_def, num_discrs, *alloc_cache.entry(ty).or_insert(alloc)))
}
fn optim<'tcx>(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
let mut alloc_cache = FxHashMap::default();
let body_did = body.source.def_id();