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| author | bors <bors@rust-lang.org> | 2023-05-28 09:59:20 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2023-05-28 09:59:20 +0000 |
| commit | f59d577838fb0449a2b59ec3525a7fa91509e861 (patch) | |
| tree | e2e75787426055813a5e54321e91d9f6bef4d6ae /compiler/rustc_mir_transform/src/inline/cycle.rs | |
| parent | ddad0576caf8d0515ed453e04b468977c7d3dfc1 (diff) | |
| parent | 7e04c93493a2f9b4d508e6bbf08227407683d666 (diff) | |
| download | rust-f59d577838fb0449a2b59ec3525a7fa91509e861.tar.gz rust-f59d577838fb0449a2b59ec3525a7fa91509e861.zip | |
Auto merge of #112001 - saethlin:enable-matchbranchsimplification, r=cjgillot
Enable MatchBranchSimplification This pass is one of the small number of benefits from `-Zmir-opt-level=3` that has motivated rustc_codegen_cranelift to use it: https://github.com/rust-lang/rust/blob/19ed0aade60e1c1038fe40554bcd9d01b717effa/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs#L244-L246 Cranelift's motivation for this is _runtime_ performance improvements in debug builds. Lifting this pass all the way to `-Zmir-opt-level=1` seems to come without significant perf overhead, so that's what I'm suggesting here.
Diffstat (limited to 'compiler/rustc_mir_transform/src/inline/cycle.rs')
0 files changed, 0 insertions, 0 deletions