strip and split-debuginfo across platforms" compiler-team#669--build-id flag to rustc" compiler-team#635(last review activity: 3 months ago)warnings level for a specific lint via command line" rust#113307issue-[0-9]+.rs tests" compiler_team#658 (Zulip)builtin:$path option to the -L flag" compiler_team#659 (Zulip)asmjs-unknown-emscripten to push a boulder up a hill for eternity" compiler_team#668 (Zulip)PATH option for --print KIND=PATH" rust#114183wasm32-wasi-preview1-threads target to tier 2" compiler-team#661[T; 0]" rust#110288#[repr(Rust)]" rust#114201nothing to report at this time
T-compiler stable / T-compiler beta
It should be very safe, since it's only one line of product code, and all it does is disable #111999 in more cases, leaving those cases to use the same codepath as in 1.71.
deduced_param_attrs" rust#114948
2 != 2 after update to LLVM 17" rust#115385
P-high beta regressions this time.Unassigned P-high nightly regressions
P-high nightly regressions this time.A fairly quiet week, with improvements exceeding a small scattering of
regressions. Memory usage and artifact size held fairly steady across the week,
with no regressions or improvements.
Triage done by @simulacrum.
Revision range: d4a881e1433cd10e424843353e1f939f5a798f4e..cedbe5c715c1fa9359683c5f108bed2054ac258b
Summary:
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | 1.6% | [0.3%, 2.2%] | 6 |
| Regressions (secondary) | 1.4% | [0.8%, 1.9%] | 19 |
| Improvements (primary) | -1.0% | [-8.0%, -0.3%] | 70 |
| Improvements (secondary) | -1.6% | [-4.2%, -0.2%] | 56 |
| All (primary) | -0.8% | [-8.0%, 2.2%] | 76 |
2 Regressions, 3 Improvements, 2 Mixed; 0 of them in rollups
108 artifact comparisons made in total
rustdoc: Add lint redundant_explicit_links #113167 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | 0.7% | [0.4%, 0.9%] | 7 |
| Regressions (secondary) | - | - | 0 |
| Improvements (primary) | - | - | 0 |
| Improvements (secondary) | - | - | 0 |
| All (primary) | 0.7% | [0.4%, 0.9%] | 7 |
Small regression in libc compilation, primarily incremental non-doc scenarios.
Unclear cause but sufficiently limited in scope that further investigation is
not warranted.
Fix races conditions with SyntaxContext decoding #115082 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | 0.3% | [0.2%, 0.3%] | 4 |
| Regressions (secondary) | 0.3% | [0.3%, 0.4%] | 7 |
| Improvements (primary) | - | - | 0 |
| Improvements (secondary) | - | - | 0 |
| All (primary) | 0.3% | [0.2%, 0.3%] | 4 |
Some small regressions, but this is a correctness fix for parallel compilation
so warranted. (Parallel compilation is not on here but the fix affects both
non-parallel and parallel scenarios).
Speed up compilation of type-system-chess #114611 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | - | - | 0 |
| Regressions (secondary) | - | - | 0 |
| Improvements (primary) | -1.7% | [-1.7%, -1.7%] | 1 |
| Improvements (secondary) | -2.2% | [-4.2%, -0.7%] | 28 |
| All (primary) | -1.7% | [-1.7%, -1.7%] | 1 |
Perf results look good, various small improvements in secondary benchmarks.
The real driver was the type-system-chess program I mentioned above, where
the walltime and max-rss changes were both about -85% when I measured them
locally.
(https://github.com/rust-lang/rust/pull/114611#issuecomment-1670713067)
Add MIR validation for unwind out from nounwind functions + fixes to make validation pass #113124 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | - | - | 0 |
| Regressions (secondary) | - | - | 0 |
| Improvements (primary) | -0.7% | [-1.1%, -0.5%] | 6 |
| Improvements (secondary) | -0.3% | [-0.6%, -0.2%] | 3 |
| All (primary) | -0.7% | [-1.1%, -0.5%] | 6 |
Update x64 Linux host compiler to LLVM 17 #114297 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | - | - | 0 |
| Regressions (secondary) | - | - | 0 |
| Improvements (primary) | -0.6% | [-1.0%, -0.2%] | 41 |
| Improvements (secondary) | -0.9% | [-1.5%, -0.2%] | 22 |
| All (primary) | -0.6% | [-1.0%, -0.2%] | 41 |
Remove references in VarDebugInfo #114904 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | 0.8% | [0.3%, 1.3%] | 10 |
| Regressions (secondary) | 1.4% | [1.3%, 1.4%] | 4 |
| Improvements (primary) | -1.0% | [-7.3%, -0.3%] | 32 |
| Improvements (secondary) | -2.1% | [-2.4%, -1.6%] | 4 |
| All (primary) | -0.6% | [-7.3%, 1.3%] | 42 |
Fixed a bug in codegen. The regressions appear to be within noise range for the
relevant benchmarks.
Add a new helper to avoid calling io::Error::kind #115228 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions (primary) | 0.3% | [0.3%, 0.3%] | 1 |
| Regressions (secondary) | - | - | 0 |
| Improvements (primary) | -0.6% | [-0.8%, -0.5%] | 3 |
| Improvements (secondary) | - | - | 0 |
| All (primary) | -0.4% | [-0.8%, 0.3%] | 4 |
Regression is within noise range of the relevant benchmark.
xvor instruction (an AltiVec optimisation) in cargo and rustup-init binaries prevents anything to compile under PPC64 (POWER5+ class) (comment)powerpc64-unknown-linux-gnu, discontinued in 2019, only about that particular server model, see comment) but is also visible in more recent POWER architecturesConstKind::Error to usize" rust#113712(last review activity: about 46 days ago)
Next meetings' agenda draft: https://hackmd.io/Ly5571uCSUSm6Uib-f5K8Q
-
Any changes
Be notified of any changes
-
Mention me
Be notified of mention me
-
Unsubscribe
Subscribe