bjoernager/rust
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Introduce -Zprofile-closures to evaluate the impact of 2229

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This creates a CSV with name "closure_profile_XXXXX.csv", where the
variable part is the process id of the compiler.

To profile a cargo project you can run one of the following depending on
if you're compiling a library or a binary:

```
cargo +stage1 rustc --lib -- -Zprofile-closures
cargo +stage1 rustc --bin -- -Zprofile-closures
```
This commit is contained in:
Aman Arora 2021-05-05 15:57:08 -04:00
parent 3e9d7ecf78
commit fc273e9bf2
9 changed files with 148 additions and 7 deletions
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1
compiler/rustc_interface/src/tests.rs
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@ -654,6 +654,7 @@ fn test_debugging_options_tracking_hash() {
untracked!(perf_stats, true);
// `pre_link_arg` is omitted because it just forwards to `pre_link_args`.
untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]);
untracked!(profile_closures, true);
untracked!(print_link_args, true);
untracked!(print_llvm_passes, true);
untracked!(print_mono_items, Some(String::from("abc")));