Avoid unnecessary mk_ty calls in Ty::super_fold_with. #37705
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This speeds up compilation of several rustc-benchmarks by 1--2% and the workload in rust-lang#36799 by 5%.
brson
added
the
relnotes
|
@bors r+ rollup |
|
📌 Commit 11c1126 has been approved by |
eddyb
reviewed
Nov 11, 2016
| @@ -482,7 +482,7 @@ impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> { | |||
| ty::TyAnon(did, substs) => ty::TyAnon(did, substs.fold_with(folder)), | |||
| ty::TyBool | ty::TyChar | ty::TyStr | ty::TyInt(_) | | |||
| ty::TyUint(_) | ty::TyFloat(_) | ty::TyError | ty::TyInfer(_) | | |||
| ty::TyParam(..) | ty::TyNever => self.sty.clone(), | |||
| ty::TyParam(..) | ty::TyNever => return self | |||
There was a problem hiding this comment.
Oh god. Nice find! cc @nikomatsakis
eddyb
added a commit
to eddyb/rust
that referenced
this pull request
Nov 11, 2016
Avoid unnecessary mk_ty calls in Ty::super_fold_with. This speeds up compilation of several rustc-benchmarks by 1--2% and the workload in rust-lang#36799 by 5%. r? @eddyb
eddyb
added a commit
to eddyb/rust
that referenced
this pull request
Nov 12, 2016
Avoid unnecessary mk_ty calls in Ty::super_fold_with. This speeds up compilation of several rustc-benchmarks by 1--2% and the workload in rust-lang#36799 by 5%. r? @eddyb
bors
added a commit
that referenced
this pull request
Nov 12, 2016
Rollup of 30 pull requests - Successful merges: #37190, #37368, #37481, #37503, #37527, #37535, #37551, #37584, #37600, #37613, #37615, #37659, #37662, #37669, #37682, #37688, #37690, #37692, #37693, #37694, #37695, #37696, #37698, #37699, #37705, #37708, #37709, #37716, #37724, #37727 - Failed merges: #37640, #37689, #37717
bors
added a commit
that referenced
this pull request
Nov 25, 2016
Avoid more unnecessary mk_ty calls in Ty::super_fold_with. This speeds up several rustc-benchmarks by 1--5%. This PR is the lovechild of #37108 and #37705. ``` futures-rs-test 4.059s vs 4.011s --> 1.012x faster (variance: 1.016x, 1.026x) helloworld 0.236s vs 0.239s --> 0.986x faster (variance: 1.051x, 1.014x) html5ever-2016- 3.831s vs 3.824s --> 1.002x faster (variance: 1.020x, 1.019x) hyper.0.5.0 4.928s vs 4.936s --> 0.998x faster (variance: 1.003x, 1.012x) inflate-0.1.0 4.135s vs 4.104s --> 1.007x faster (variance: 1.026x, 1.028x) issue-32062-equ 0.309s vs 0.303s --> 1.017x faster (variance: 1.019x, 1.084x) issue-32278-big 1.818s vs 1.797s --> 1.011x faster (variance: 1.011x, 1.008x) jld-day15-parse 1.304s vs 1.271s --> 1.026x faster (variance: 1.018x, 1.012x) piston-image-0. 10.938s vs 10.921s --> 1.002x faster (variance: 1.025x, 1.016x) reddit-stress 2.327s vs 2.208s --> 1.054x faster (variance: 1.016x, 1.006x) regex-0.1.80 8.796s vs 8.727s --> 1.008x faster (variance: 1.012x, 1.019x) regex.0.1.30 2.294s vs 2.249s --> 1.020x faster (variance: 1.013x, 1.026x) rust-encoding-0 1.914s vs 1.886s --> 1.015x faster (variance: 1.027x, 1.026x) ```
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This speeds up compilation of several rustc-benchmarks by 1--2% and the workload in #36799 by 5%.
r? @eddyb