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| author | Jakub Beránek <berykubik@gmail.com> | 2023-08-09 09:31:22 +0200 |
|---|---|---|
| committer | Jakub Beránek <berykubik@gmail.com> | 2023-08-09 09:33:42 +0200 |
| commit | 6b4ec09cab1f72a17285285c356acc0afdcd47e6 (patch) | |
| tree | 7df7d11f1d50376618dd600dc32a0dd375dc556e | |
| parent | 8838c73e866aa85b40463640ff6f5af268507812 (diff) | |
| download | rust-6b4ec09cab1f72a17285285c356acc0afdcd47e6.tar.gz rust-6b4ec09cab1f72a17285285c356acc0afdcd47e6.zip | |
Remove usage of `--use-old-text` for BOLT
| -rw-r--r-- | src/tools/opt-dist/src/bolt.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/tools/opt-dist/src/bolt.rs b/src/tools/opt-dist/src/bolt.rs index e44b8a4db92..cf9f4fabcec 100644 --- a/src/tools/opt-dist/src/bolt.rs +++ b/src/tools/opt-dist/src/bolt.rs @@ -65,8 +65,13 @@ pub fn bolt_optimize(path: &Utf8Path, profile: &LlvmBoltProfile) -> anyhow::Resu .arg("-jump-tables=move") // Fold functions with identical code .arg("-icf=1") + // The following flag saves about 50 MiB of libLLVM.so size. + // However, it succeeds very non-deterministically. To avoid frequent artifact size swings, + // it is kept disabled for now. + // FIXME(kobzol): try to re-enable this once BOLT in-place rewriting is merged or after + // we bump LLVM. // Try to reuse old text segments to reduce binary size - .arg("--use-old-text") + // .arg("--use-old-text") // Update DWARF debug info in the final binary .arg("-update-debug-sections") // Print optimization statistics |