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Reduce size of statements

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This commit is contained in:
Roxane 2021-03-29 22:48:44 -04:00
parent 2fb1fb7634
commit 0a97eee8df
10 changed files with 16 additions and 14 deletions
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8
compiler/rustc_middle/src/mir/mod.rs
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@ -1452,7 +1452,7 @@ pub struct Statement<'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<'_>, 40);
static_assert_size!(Statement<'_>, 32);
impl Statement<'_> {
/// Changes a statement to a nop. This is both faster than deleting instructions and avoids
@ -1482,7 +1482,7 @@ pub enum StatementKind<'tcx> {
///
/// Note that this also is emitted for regular `let` bindings to ensure that locals that are
/// never accessed still get some sanity checks for, e.g., `let x: ! = ..;`
FakeRead(FakeReadCause, Box<Place<'tcx>>),
FakeRead(Box<(FakeReadCause, Place<'tcx>)>),
/// Write the discriminant for a variant to the enum Place.
SetDiscriminant { place: Box<Place<'tcx>>, variant_index: VariantIdx },
@ -1628,7 +1628,9 @@ impl Debug for Statement<'_> {
use self::StatementKind::*;
match self.kind {
Assign(box (ref place, ref rv)) => write!(fmt, "{:?} = {:?}", place, rv),
FakeRead(ref cause, ref place) => write!(fmt, "FakeRead({:?}, {:?})", cause, place),
FakeRead(box (ref cause, ref place)) => {
write!(fmt, "FakeRead({:?}, {:?})", cause, place)
}
Retag(ref kind, ref place) => write!(
fmt,
"Retag({}{:?})",