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Auto merge of #88839 - nbdd0121:alignof, r=nagisa

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Introduce NullOp::AlignOf

This PR introduces `Rvalue::NullaryOp(NullOp::AlignOf, ty)`, which will be lowered from `align_of`, similar to `size_of` lowering to `Rvalue::NullaryOp(NullOp::SizeOf, ty)`.

The changes are originally part of #88700 but since it's not dependent on other changes and could have performance impact on its own, it's separated into its own PR.
This commit is contained in:
bors 2021-09-12 23:49:24 +00:00
commit 00d45fe5b7
1 changed files with 1 additions and 1 deletions
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clippy_utils/src/qualify_min_const_fn.rs
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@ -192,7 +192,7 @@ fn check_rvalue(tcx: TyCtxt<'tcx>, body: &Body<'tcx>, def_id: DefId, rvalue: &Rv
)) ))
} }
}, },
Rvalue::NullaryOp(NullOp::SizeOf, _) => Ok(()), Rvalue::NullaryOp(NullOp::SizeOf | NullOp::AlignOf, _) => Ok(()),
Rvalue::NullaryOp(NullOp::Box, _) => Err((span, "heap allocations are not allowed in const fn".into())), Rvalue::NullaryOp(NullOp::Box, _) => Err((span, "heap allocations are not allowed in const fn".into())),
Rvalue::UnaryOp(_, operand) => { Rvalue::UnaryOp(_, operand) => {
let ty = operand.ty(body, tcx); let ty = operand.ty(body, tcx);