diff options
| -rw-r--r-- | src/lib.rs | 1 | ||||
| -rw-r--r-- | src/optimize/mod.rs | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs index 02cfe160370..cbe07643a40 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -12,6 +12,7 @@ extern crate rustc_fs_util; extern crate rustc_incremental; extern crate rustc_index; extern crate rustc_mir; +extern crate rustc_session; extern crate rustc_target; extern crate syntax; diff --git a/src/optimize/mod.rs b/src/optimize/mod.rs index 34f68526136..59e4d2dd47d 100644 --- a/src/optimize/mod.rs +++ b/src/optimize/mod.rs @@ -8,6 +8,9 @@ pub fn optimize_function<'tcx>( ctx: &mut Context, clif_comments: &mut crate::pretty_clif::CommentWriter, ) { + if tcx.sess.opts.optimize == rustc_session::config::OptLevel::No { + return; // FIXME classify optimizations over opt levels + } self::stack2reg::optimize_function(ctx, clif_comments, instance); #[cfg(debug_assertions)] crate::pretty_clif::write_clif_file(tcx, "stack2reg", instance, &ctx.func, &*clif_comments, None); |