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| author | Yuki Okushi <jtitor@2k36.org> | 2021-07-27 19:52:40 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-07-27 19:52:40 +0900 |
| commit | 99a6474bc45c66823972da3e4e23dc4cf47dd79a (patch) | |
| tree | d06fe78bdab65bcb4b127f2c75cdb6cdfbfe15e8 /compiler/rustc_session | |
| parent | 998cfe5aad7c21eb19a4bca50f05a13354706970 (diff) | |
| parent | 9792179648abb7bf38a9e54191cfe5a25436b8fb (diff) | |
| download | rust-99a6474bc45c66823972da3e4e23dc4cf47dd79a.tar.gz rust-99a6474bc45c66823972da3e4e23dc4cf47dd79a.zip | |
Rollup merge of #86450 - tmiasko:move-size-limit, r=pnkfelix
Add flag to configure `large_assignments` lint The `large_assignments` lints detects moves over specified limit. The limit is configured through `move_size_limit = "N"` attribute placed at the root of a crate. When attribute is absent, the lint is disabled. Make it possible to enable the lint without making any changes to the source code, through a new flag `-Zmove-size-limit=N`. For example, to detect moves exceeding 1023 bytes in a cargo crate, including all dependencies one could use: ``` $ env RUSTFLAGS=-Zmove-size-limit=1024 cargo build -vv ``` Lint tracking issue #83518.
Diffstat (limited to 'compiler/rustc_session')
| -rw-r--r-- | compiler/rustc_session/src/options.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 9fbe4c05ef9..0805d2f0e14 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1148,6 +1148,8 @@ options! { (default: no)"), mir_opt_level: Option<usize> = (None, parse_opt_number, [TRACKED], "MIR optimization level (0-4; default: 1 in non optimized builds and 2 in optimized builds)"), + move_size_limit: Option<usize> = (None, parse_opt_number, [TRACKED], + "the size at which the `large_assignments` lint starts to be emitted"), mutable_noalias: Option<bool> = (None, parse_opt_bool, [TRACKED], "emit noalias metadata for mutable references (default: yes for LLVM >= 12, otherwise no)"), new_llvm_pass_manager: Option<bool> = (None, parse_opt_bool, [TRACKED], |