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| author | Ariel Ben-Yehuda <arielb1@mail.tau.ac.il> | 2017-04-20 01:58:12 +0300 |
|---|---|---|
| committer | Ariel Ben-Yehuda <ariel.byd@gmail.com> | 2017-04-22 21:00:50 +0300 |
| commit | e1377a4f474fc76abc798110b7fb4f53d54c2e2b (patch) | |
| tree | 8b9be2d0c057a3d9eb2ffae6310f1ea4c109409c /src/librustc_mir/transform/inline.rs | |
| parent | 3bf00450cb9413b3c8e1e52fb7dfeaf31eb93b83 (diff) | |
| download | rust-e1377a4f474fc76abc798110b7fb4f53d54c2e2b.tar.gz rust-e1377a4f474fc76abc798110b7fb4f53d54c2e2b.zip | |
avoid calling `mk_region` unnecessarily
this improves typeck & trans performance by 1%. This looked hotter on callgrind than it is on a CPU.
Diffstat (limited to 'src/librustc_mir/transform/inline.rs')
| -rw-r--r-- | src/librustc_mir/transform/inline.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/librustc_mir/transform/inline.rs b/src/librustc_mir/transform/inline.rs index 892d67ac237..45bdff9195c 100644 --- a/src/librustc_mir/transform/inline.rs +++ b/src/librustc_mir/transform/inline.rs @@ -497,7 +497,7 @@ impl<'a, 'tcx> Inliner<'a, 'tcx> { let dest = if dest_needs_borrow(&destination.0) { debug!("Creating temp for return destination"); let dest = Rvalue::Ref( - self.tcx.mk_region(ty::ReErased), + self.tcx.types.re_erased, BorrowKind::Mut, destination.0); @@ -582,7 +582,7 @@ impl<'a, 'tcx> Inliner<'a, 'tcx> { fn cast_box_free_arg(&self, arg: Lvalue<'tcx>, ptr_ty: Ty<'tcx>, callsite: &CallSite<'tcx>, caller_mir: &mut Mir<'tcx>) -> Operand<'tcx> { let arg = Rvalue::Ref( - self.tcx.mk_region(ty::ReErased), + self.tcx.types.re_erased, BorrowKind::Mut, arg.deref()); |