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https://github.com/rust-lang/rust.git
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c9c80d2c5f
The only non-obvious changes: - `building/storage_live_dead_in_statics.rs` has a `#[rustfmt::skip]` attribute to avoid reformating a table of data. - Two `.mir` files have slight changes involving line numbers. - In `unusual_item_types.rs` an `EMIT_MIR` annotation is moved to outside a function, which is the usual spot, because `tidy` complains if such a comment is indented. The commit also tweaks the comments in `rustfmt.toml`.
36 lines
870 B
Rust
36 lines
870 B
Rust
// skip-filecheck
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//@ compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2
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// Track the status of MIR optimizations simplifying `Ok(res?)` for both the old and new desugarings
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// of that syntax.
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use std::ops::ControlFlow;
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// EMIT_MIR try_identity.new.PreCodegen.after.mir
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fn new<T, E>(x: Result<T, E>) -> Result<T, E> {
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Ok(
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match {
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match x {
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Ok(v) => ControlFlow::Continue(v),
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Err(e) => ControlFlow::Break(e),
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}
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} {
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ControlFlow::Continue(v) => v,
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ControlFlow::Break(e) => return Err(e),
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},
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)
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}
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// EMIT_MIR try_identity.old.PreCodegen.after.mir
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fn old<T, E>(x: Result<T, E>) -> Result<T, E> {
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Ok(match x {
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Ok(v) => v,
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Err(e) => return Err(e),
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})
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}
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fn main() {
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let _ = new::<(), ()>(Ok(()));
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let _ = old::<(), ()>(Ok(()));
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}
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