Matthias Krüger f41f154dfb Rollup merge of #107533 - pnkfelix:distinguish-generator-state-in-print-type-sizes, r=compiler-errors ... Extend `-Z print-type-sizes` to distinguish generator upvars+locals from "normal" fields. For example, for this code: ```rust async fn wait() {} async fn test(arg: [u8; 8192]) { wait().await; drop(arg); } async fn test_ideal(_rg: [u8; 8192]) { wait().await; // drop(arg); } fn main() { let gen_t = test([0; 8192]); let gen_i = test_ideal([0; 8192]); println!("expect {}, got: {}", std::mem::size_of_val(&gen_i), std::mem::size_of_val(&gen_t)); } ``` the `-Z print-type-sizes` output used to start with: ``` print-type-size type: `[async fn body@issue-62958-a.rs:3:32: 6:2]`: 16386 bytes, alignment: 1 bytes print-type-size discriminant: 1 bytes print-type-size variant `Suspend0`: 16385 bytes print-type-size field `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes print-type-size field `.arg`: 8192 bytes print-type-size field `.__awaitee`: 1 bytes ... print-type-size type: `std::mem::ManuallyDrop<[u8; 8192]>`: 8192 bytes, alignment: 1 bytes print-type-size field `.value`: 8192 bytes ... ``` but with this change, it now instead prints: ``` print-type-size type: `[async fn body@issue-62958-a.rs:3:32: 6:2]`: 16386 bytes, alignment: 1 bytes print-type-size discriminant: 1 bytes print-type-size variant `Suspend0`: 16385 bytes print-type-size upvar `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes print-type-size local `.arg`: 8192 bytes print-type-size local `.__awaitee`: 1 bytes ... print-type-size type: `std::mem::ManuallyDrop<[u8; 8192]>`: 8192 bytes, alignment: 1 bytes print-type-size field `.value`: 8192 bytes ``` (spawned off of investigation of https://github.com/rust-lang/rust/issues/62958 )		2023-02-01 05:54:40 +01:00
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src	Rollup merge of #107533 - pnkfelix:distinguish-generator-state-in-print-type-sizes, r=compiler-errors	2023-02-01 05:54:40 +01:00
Cargo.toml	Move the untracked cstore and source_span into a struct	2022-12-09 14:53:24 +00:00