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| author | Scott McMurray <scottmcm@users.noreply.github.com> | 2024-06-21 02:20:18 -0700 |
|---|---|---|
| committer | Scott McMurray <scottmcm@users.noreply.github.com> | 2024-06-21 18:02:05 -0700 |
| commit | b28efb11af6c3aea1117df81df9fc6ddf5b88077 (patch) | |
| tree | 0b7ee85999c65aab801e636ff4284f32cb5f0933 /compiler/rustc_mir_transform/src/shim.rs | |
| parent | 25c9f2ca06d6d8d5f314362ffd17e71a8df55546 (diff) | |
| download | rust-b28efb11af6c3aea1117df81df9fc6ddf5b88077.tar.gz rust-b28efb11af6c3aea1117df81df9fc6ddf5b88077.zip | |
Save 2 pointers in `TerminatorKind` (96 → 80 bytes)
These things don't need to be `Vec`s; boxed slices are enough. The frequent one here is call arguments, but MIR building knows the number of arguments from the THIR, so the collect is always getting the allocation right in the first place, and thus this shouldn't ever add the shrink-in-place overhead.
Diffstat (limited to 'compiler/rustc_mir_transform/src/shim.rs')
| -rw-r--r-- | compiler/rustc_mir_transform/src/shim.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs index 825f8957187..25577e88e28 100644 --- a/compiler/rustc_mir_transform/src/shim.rs +++ b/compiler/rustc_mir_transform/src/shim.rs @@ -562,7 +562,7 @@ impl<'tcx> CloneShimBuilder<'tcx> { vec![statement], TerminatorKind::Call { func, - args: vec![Spanned { node: Operand::Move(ref_loc), span: DUMMY_SP }], + args: [Spanned { node: Operand::Move(ref_loc), span: DUMMY_SP }].into(), destination: dest, target: Some(next), unwind: UnwindAction::Cleanup(cleanup), @@ -843,7 +843,7 @@ fn build_call_shim<'tcx>( }; // BB #0 - let args = args.into_iter().map(|a| Spanned { node: a, span: DUMMY_SP }).collect::<Vec<_>>(); + let args = args.into_iter().map(|a| Spanned { node: a, span: DUMMY_SP }).collect(); block( &mut blocks, statements, |