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Auto merge of #42402 - citizen428:create-dump-mir-dir, r=Mark-Simulacrum

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Create directory for dump-mir-dir automatically

Fixes #35543 r? @Mark-Simulacrum

@Mark-Simulacrum I know someone else said that they'll work on this, but it has been 3+ weeks and I had nothing to do and wanted to contribute a bit.

I now added the call to automatically create the directory as discussed, but was wondering how you feel about the suggestion to set a default directory, i.e. `target/mir`?
This commit is contained in:
bors 2017-06-04 17:51:46 +00:00
commit 9a4e13f5c4
1 changed files with 1 additions and 0 deletions
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src/librustc_mir/util/pretty.rs
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@ -111,6 +111,7 @@ fn dump_matched_mir_node<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
let p = Path::new(file_dir);
file_path.push(p);
};
let _ = fs::create_dir_all(&file_path);
let file_name = format!("rustc.node{}{}{}.{}.{}.mir",
source.item_id(), promotion_id, pass_num, pass_name, disambiguator);
file_path.push(&file_name);