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Codegen const panic messages as function calls #122671
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@bors try @rust-timer queue |
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…try> Codegen const panic messages as function calls This skips emitting extra arguments at every callsite (of which there can be many). We could handwrite these functions if the approach here proves fairly expensive at compile-time. r? `@Mark-Simulacrum` (for perf, for now)
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☀️ Try build successful - checks-actions |
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Finished benchmarking commit (02fafb5): comparison URL. Overall result: ❌ regressions - ACTION NEEDEDBenchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf. Next Steps: If you can justify the regressions found in this try perf run, please indicate this with @bors rollup=never Instruction countThis is a highly reliable metric that was used to determine the overall result at the top of this comment.
Max RSS (memory usage)ResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
CyclesThis benchmark run did not return any relevant results for this metric. Binary sizeResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Bootstrap: 669.037s -> 669.296s (0.04%) |
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@bors try @rust-timer queue |
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…try> Codegen const panic messages as function calls This skips emitting extra arguments at every callsite (of which there can be many). We could handwrite these functions if the approach here proves fairly expensive at compile-time. r? `@Mark-Simulacrum` (for perf, for now)
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💔 Test failed - checks-actions |
@bors try @rust-timer queue |
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The Miri subtree was changed cc @rust-lang/miri Some changes occurred in compiler/rustc_codegen_cranelift cc @bjorn3 |
…ilstrieb Codegen const panic messages as function calls This skips emitting extra arguments at every callsite (of which there can be many). For a librustc_driver build with overflow checks enabled, this cuts 0.7MB from the resulting shared library (see [perf]). A sample improvement from nightly: ``` leaq str.0(%rip), %rdi leaq .Lalloc_d6aeb8e2aa19de39a7f0e861c998af13(%rip), %rdx movl $25, %esi callq *_ZN4core9panicking5panic17h17cabb89c5bcc999E@GOTPCREL(%rip) ``` to this PR: ``` leaq .Lalloc_d6aeb8e2aa19de39a7f0e861c998af13(%rip), %rdi callq *_RNvNtNtCsduqIKoij8JB_4core9panicking11panic_const23panic_const_div_by_zero@GOTPCREL(%rip) ``` [perf]: https://perf.rust-lang.org/compare.html?start=a7e4de13c1785819f4d61da41f6704ed69d5f203&end=64fbb4f0b2d621ff46d559d1e9f5ad89a8d7789b&stat=instructions:u
💔 Test failed - checks-actions |
The job Click to see the possible cause of the failure (guessed by this bot)
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Update ninja on Windows Errors started showing up, and I read somewhere that this might be because of old ninja versions. This ninja version is indeed *ancient*. ``` multiple outputs aren't (yet?) supported by depslog; bring this up on the mailing list if it affects you ``` This requires someone uploading https://github.com/ninja-build/ninja/releases/download/v1.11.1/ninja-win.zip as `2024-03-28-v1.11.1-ninja-win.zip`. should end rust-lang#122671 (comment)
@bors retry since the failure was spurious |
☀️ Test successful - checks-actions |
Finished benchmarking commit (db2f975): comparison URL. Overall result: ❌✅ regressions and improvements - ACTION NEEDEDNext Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression Instruction countThis is a highly reliable metric that was used to determine the overall result at the top of this comment.
Max RSS (memory usage)ResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
CyclesThis benchmark run did not return any relevant results for this metric. Binary sizeResultsThis is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Bootstrap: 668.388s -> 669.604s (0.18%) |
Update ninja on Windows Errors started showing up, and I read somewhere that this might be because of old ninja versions. This ninja version is indeed *ancient*. ``` multiple outputs aren't (yet?) supported by depslog; bring this up on the mailing list if it affects you ``` This requires someone uploading https://github.com/ninja-build/ninja/releases/download/v1.11.1/ninja-win.zip as `2024-03-28-v1.11.1-ninja-win.zip`. should end rust-lang/rust#122671 (comment)
…ilstrieb Codegen const panic messages as function calls This skips emitting extra arguments at every callsite (of which there can be many). For a librustc_driver build with overflow checks enabled, this cuts 0.7MB from the resulting shared library (see [perf]). A sample improvement from nightly: ``` leaq str.0(%rip), %rdi leaq .Lalloc_d6aeb8e2aa19de39a7f0e861c998af13(%rip), %rdx movl $25, %esi callq *_ZN4core9panicking5panic17h17cabb89c5bcc999E@GOTPCREL(%rip) ``` to this PR: ``` leaq .Lalloc_d6aeb8e2aa19de39a7f0e861c998af13(%rip), %rdi callq *_RNvNtNtCsduqIKoij8JB_4core9panicking11panic_const23panic_const_div_by_zero@GOTPCREL(%rip) ``` [perf]: https://perf.rust-lang.org/compare.html?start=a7e4de13c1785819f4d61da41f6704ed69d5f203&end=64fbb4f0b2d621ff46d559d1e9f5ad89a8d7789b&stat=instructions:u
…ilstrieb Codegen const panic messages as function calls This skips emitting extra arguments at every callsite (of which there can be many). For a librustc_driver build with overflow checks enabled, this cuts 0.7MB from the resulting shared library (see [perf]). A sample improvement from nightly: ``` leaq str.0(%rip), %rdi leaq .Lalloc_d6aeb8e2aa19de39a7f0e861c998af13(%rip), %rdx movl $25, %esi callq *_ZN4core9panicking5panic17h17cabb89c5bcc999E@GOTPCREL(%rip) ``` to this PR: ``` leaq .Lalloc_d6aeb8e2aa19de39a7f0e861c998af13(%rip), %rdi callq *_RNvNtNtCsduqIKoij8JB_4core9panicking11panic_const23panic_const_div_by_zero@GOTPCREL(%rip) ``` [perf]: https://perf.rust-lang.org/compare.html?start=a7e4de13c1785819f4d61da41f6704ed69d5f203&end=64fbb4f0b2d621ff46d559d1e9f5ad89a8d7789b&stat=instructions:u
This skips emitting extra arguments at every callsite (of which there
can be many). For a librustc_driver build with overflow checks enabled,
this cuts 0.7MB from the resulting shared library (see perf).
A sample improvement from nightly:
to this PR: