diff options
| author | bors <bors@rust-lang.org> | 2021-08-26 01:14:16 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2021-08-26 01:14:16 +0000 |
| commit | c4be230b4a30eb74e3a3908455731ebc2f731d3d (patch) | |
| tree | fc5037fc88bd8664b70ad71483c1637e0879f78e /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp | |
| parent | 0afc20860eb98a29d9bbeea80f2acc5be38c6bf3 (diff) | |
| parent | 1ea8d93c0ca5168e7f434d87e19af337b83157e4 (diff) | |
| download | rust-c4be230b4a30eb74e3a3908455731ebc2f731d3d.tar.gz rust-c4be230b4a30eb74e3a3908455731ebc2f731d3d.zip | |
Auto merge of #88069 - Mark-Simulacrum:llvm-pgo, r=pietroalbini
PGO for LLVM builds on x86_64-unknown-linux-gnu in CI This shows up to 6% less instruction counts with larger - up to 18% - wins on cycles on multiple benchmarks, and up to 19% wins on the -j1 wall times for rustc self-compilation. We can afford to spend the extra cycles building LLVM essentially once more for the x86_64-unknown-linux-gnu CI build today. The builder finishes in around 50 minutes on average, and this adds just 10 more minutes. Given the sizeable improvements in compiler performance, this is definitely worth it.
Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp')
0 files changed, 0 insertions, 0 deletions