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Couple of small changes #117615

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merged 3 commits into from
Nov 6, 2023
Merged

Couple of small changes #117615

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1a1b10f
Don't steal the parse query when using --pretty
bjorn3 Nov 4, 2023
ba82056
Use the actual computed crate name for -Zprint-vtable-sizes
bjorn3 Nov 4, 2023
ec29a02
Update doc comment for CodegenBackend::link
bjorn3 Nov 5, 2023
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6 changes: 1 addition & 5 deletions compiler/rustc_codegen_ssa/src/traits/backend.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -104,11 +104,7 @@ pub trait CodegenBackend {
outputs: &OutputFilenames,
) -> Result<(CodegenResults, FxIndexMap<WorkProductId, WorkProduct>), ErrorGuaranteed>;

/// This is called on the returned `Box<dyn Any>` from `join_codegen`
///
/// # Panics
///
/// Panics when the passed `Box<dyn Any>` was not returned by `join_codegen`.
/// This is called on the returned `CodegenResults` from `join_codegen`
fn link(
&self,
sess: &Session,
Expand Down
12 changes: 8 additions & 4 deletions compiler/rustc_driver_impl/src/lib.rs
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Expand Up @@ -41,6 +41,7 @@ use rustc_session::cstore::MetadataLoader;
use rustc_session::getopts::{self, Matches};
use rustc_session::lint::{Lint, LintId};
use rustc_session::{config, EarlyErrorHandler, Session};
use rustc_span::def_id::LOCAL_CRATE;
use rustc_span::source_map::FileLoader;
use rustc_span::symbol::sym;
use rustc_span::FileName;
Expand Down Expand Up @@ -421,8 +422,12 @@ fn run_compiler(
// effects of writing the dep-info and reporting errors.
queries.global_ctxt()?.enter(|tcx| tcx.output_filenames(()));
} else {
let krate = queries.parse()?.steal();
pretty::print(sess, *ppm, pretty::PrintExtra::AfterParsing { krate });
let krate = queries.parse()?;
pretty::print(
sess,
*ppm,
pretty::PrintExtra::AfterParsing { krate: &*krate.borrow() },
);
}
trace!("finished pretty-printing");
return early_exit();
Expand Down Expand Up @@ -477,8 +482,7 @@ fn run_compiler(
}

if sess.opts.unstable_opts.print_vtable_sizes {
let crate_name =
compiler.session().opts.crate_name.as_deref().unwrap_or("<UNKNOWN_CRATE>");
let crate_name = queries.global_ctxt()?.enter(|tcx| tcx.crate_name(LOCAL_CRATE));

sess.code_stats.print_vtable_sizes(crate_name);
}
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2 changes: 1 addition & 1 deletion compiler/rustc_driver_impl/src/pretty.rs
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Expand Up @@ -217,7 +217,7 @@ fn write_or_print(out: &str, sess: &Session) {
// Extra data for pretty-printing, the form of which depends on what kind of
// pretty-printing we are doing.
pub enum PrintExtra<'tcx> {
AfterParsing { krate: ast::Crate },
AfterParsing { krate: &'tcx ast::Crate },
NeedsAstMap { tcx: TyCtxt<'tcx> },
}

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2 changes: 1 addition & 1 deletion compiler/rustc_session/src/code_stats.rs
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Expand Up @@ -226,7 +226,7 @@ impl CodeStats {
}
}

pub fn print_vtable_sizes(&self, crate_name: &str) {
pub fn print_vtable_sizes(&self, crate_name: Symbol) {
let mut infos =
std::mem::take(&mut *self.vtable_sizes.lock()).into_values().collect::<Vec<_>>();

Expand Down
22 changes: 11 additions & 11 deletions tests/ui/traits/object/print_vtable_sizes.stdout
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@@ -1,11 +1,11 @@
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "E", "entries": "6", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "2", "upcasting_cost_percent": "50" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "G", "entries": "14", "entries_ignoring_upcasting": "11", "entries_for_upcasting": "3", "upcasting_cost_percent": "27.27272727272727" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "A", "entries": "6", "entries_ignoring_upcasting": "5", "entries_for_upcasting": "1", "upcasting_cost_percent": "20" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "B", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "D", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "F", "entries": "6", "entries_ignoring_upcasting": "6", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "_::S", "entries": "3", "entries_ignoring_upcasting": "3", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "_::S", "entries": "3", "entries_ignoring_upcasting": "3", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "help::MarkerWithSuper", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "help::Super", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "<UNKNOWN_CRATE>", "trait_name": "help::V", "entries": "3", "entries_ignoring_upcasting": "3", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "E", "entries": "6", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "2", "upcasting_cost_percent": "50" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "G", "entries": "14", "entries_ignoring_upcasting": "11", "entries_for_upcasting": "3", "upcasting_cost_percent": "27.27272727272727" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "A", "entries": "6", "entries_ignoring_upcasting": "5", "entries_for_upcasting": "1", "upcasting_cost_percent": "20" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "B", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "D", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "F", "entries": "6", "entries_ignoring_upcasting": "6", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "_::S", "entries": "3", "entries_ignoring_upcasting": "3", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "_::S", "entries": "3", "entries_ignoring_upcasting": "3", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "help::MarkerWithSuper", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "help::Super", "entries": "4", "entries_ignoring_upcasting": "4", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
print-vtable-sizes { "crate_name": "print_vtable_sizes", "trait_name": "help::V", "entries": "3", "entries_ignoring_upcasting": "3", "entries_for_upcasting": "0", "upcasting_cost_percent": "0" }
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