bjoernager/rust
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Use log level to control partitioning debug output

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This commit is contained in:
Tomasz Miąsko 2021-02-24 00:00:00 +00:00
parent a8486b64b0
commit 55626eda08
1 changed files with 15 additions and 6 deletions
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21
compiler/rustc_mir/src/monomorphize/partitioning/mod.rs
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@ -239,17 +239,22 @@ where
I: Iterator<Item = &'a CodegenUnit<'tcx>>, I: Iterator<Item = &'a CodegenUnit<'tcx>>,
'tcx: 'a, 'tcx: 'a,
{ {
if cfg!(debug_assertions) { let dump = move || {
debug!("{}", label); use std::fmt::Write;
let s = &mut String::new();
let _ = writeln!(s, "{}", label);
for cgu in cgus { for cgu in cgus {
debug!("CodegenUnit {} estimated size {} :", cgu.name(), cgu.size_estimate()); let _ =
writeln!(s, "CodegenUnit {} estimated size {} :", cgu.name(), cgu.size_estimate());
for (mono_item, linkage) in cgu.items() { for (mono_item, linkage) in cgu.items() {
let symbol_name = mono_item.symbol_name(tcx).name; let symbol_name = mono_item.symbol_name(tcx).name;
let symbol_hash_start = symbol_name.rfind('h'); let symbol_hash_start = symbol_name.rfind('h');
let symbol_hash = symbol_hash_start.map_or("<no hash>", |i| &symbol_name[i..]); let symbol_hash = symbol_hash_start.map_or("<no hash>", |i| &symbol_name[i..]);
debug!( let _ = writeln!(
s,
" - {} [{:?}] [{}] estimated size {}", " - {} [{:?}] [{}] estimated size {}",
mono_item, mono_item,
linkage, linkage,
@ -258,9 +263,13 @@ where
); );
} }
debug!(""); let _ = writeln!(s, "");
}
} }
std::mem::take(s)
};
debug!("{}", dump());
} }
#[inline(never)] // give this a place in the profiler #[inline(never)] // give this a place in the profiler