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Improve sorting in debug_dump.

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Currently it sorts by symbol name, which is a mangled name like
`_ZN1a4main17hb29587cdb6db5f42E`, which leads to non-obvious orderings.

This commit changes it to use the existing
`items_in_deterministic_order`, which iterates in source code order.
This commit is contained in:
Nicholas Nethercote 2023-06-02 14:12:05 +10:00
parent 0a1cd5baa4
commit 9fd6d97915
1 changed files with 1 additions and 6 deletions
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7
compiler/rustc_monomorphize/src/partitioning.rs
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@ -864,15 +864,10 @@ fn debug_dump<'a, 'tcx: 'a>(tcx: TyCtxt<'tcx>, label: &str, cgus: &[CodegenUnit<
cgu.size_estimate()
);
// The order of `cgu.items()` is non-deterministic; sort it by name
// to give deterministic output.
let mut items: Vec<_> = cgu.items().iter().collect();
items.sort_by_key(|(item, _)| item.symbol_name(tcx).name);
for (item, linkage) in items {
for (item, linkage) in cgu.items_in_deterministic_order(tcx) {
let symbol_name = item.symbol_name(tcx).name;
let symbol_hash_start = symbol_name.rfind('h');
let symbol_hash = symbol_hash_start.map_or("<no hash>", |i| &symbol_name[i..]);
let size = item.size_estimate(tcx);
let _ = with_no_trimmed_paths!(writeln!(
s,