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Use Vec extend instead of repeated pushes in several places

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This commit is contained in:
Jakub Beránek
2021-12-08 22:56:26 +01:00
parent e6b883c74f
commit 883d0a7aa5
5 changed files with 6 additions and 16 deletions
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4
compiler/rustc_mir_transform/src/coverage/spans.rs
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@@ -329,9 +329,7 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
fn mir_to_initial_sorted_coverage_spans(&self) -> Vec<CoverageSpan> {
let mut initial_spans = Vec::<CoverageSpan>::with_capacity(self.mir_body.num_nodes() * 2);
for (bcb, bcb_data) in self.basic_coverage_blocks.iter_enumerated() {
for coverage_span in self.bcb_to_initial_coverage_spans(bcb, bcb_data) {
initial_spans.push(coverage_span);
}
initial_spans.extend(self.bcb_to_initial_coverage_spans(bcb, bcb_data));
}
if initial_spans.is_empty() {