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Merged
merged 2 commits into from
Mar 12, 2023
Merged

Expand on the allocator comment in rustc-main #109018

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Expand on the allocator comment in `rustc-main`
jyn514 Mar 11, 2023
e89bd94
fix link
jyn514 Mar 11, 2023
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9 changes: 9 additions & 0 deletions compiler/rustc/src/main.rs
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Expand Up @@ -24,6 +24,15 @@
// The two crates we link to here, `std` and `rustc_driver`, are both dynamic
// libraries. So we must reference jemalloc symbols one way or another, because
// this file is the only object code in the rustc executable.
//
// NOTE: if you are reading this comment because you want to set a custom `global_allocator` for
// benchmarking, consider using the benchmarks in the `rustc-perf` collector suite instead:
// https://github.com/rust-lang/rustc-perf/blob/master/collector/README.md#profiling
//
// NOTE: if you are reading this comment because you want to replace jemalloc with another allocator
// to compare their performance, see
// https://github.com/rust-lang/rust/commit/b90cfc887c31c3e7a9e6d462e2464db1fe506175#diff-43914724af6e464c1da2171e4a9b6c7e607d5bc1203fa95c0ab85be4122605ef
// for an example of how to do so.

#[unix_sigpipe = "sig_dfl"]
fn main() {
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