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| author | Dylan DPC <dylan.dpc@gmail.com> | 2020-10-07 00:16:08 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-10-07 00:16:08 +0200 |
| commit | 6b4dbb196c45dd86c65813cd22ab11a19090e11c (patch) | |
| tree | da1f44319d3849c7538b44bafbdeb88df59dfffb | |
| parent | 5314c72de88a0c8da60e2999c8b555d44b9967f2 (diff) | |
| parent | af4b13283f6632de73a2176371f4e381b396e1ec (diff) | |
| download | rust-6b4dbb196c45dd86c65813cd22ab11a19090e11c.tar.gz rust-6b4dbb196c45dd86c65813cd22ab11a19090e11c.zip | |
Rollup merge of #77582 - ecstatic-morse:disable-early-otherwise-branch, r=wesleywiser
Move `EarlyOtherwiseBranch` to mir-opt-level 2 cc #75119 This didn't have an [effect in most cases](https://perf.rust-lang.org/compare.html?start=81e02708f1f4760244756548981277d5199baa9a&end=2e0edc0f28c5647141bedba02e7a222d3a5dc9c3&stat=instructions:u), and is not trivially sound. Let it bake at `mir-opt-level=2` for a while. Also, this missed the cutoff for beta, so we'll have to backport this. r? @wesleywiser
| -rw-r--r-- | compiler/rustc_mir/src/transform/early_otherwise_branch.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_mir/src/transform/early_otherwise_branch.rs b/compiler/rustc_mir/src/transform/early_otherwise_branch.rs index a45b0e86fff..237a5c7864b 100644 --- a/compiler/rustc_mir/src/transform/early_otherwise_branch.rs +++ b/compiler/rustc_mir/src/transform/early_otherwise_branch.rs @@ -26,7 +26,7 @@ pub struct EarlyOtherwiseBranch; impl<'tcx> MirPass<'tcx> for EarlyOtherwiseBranch { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { - if tcx.sess.opts.debugging_opts.mir_opt_level < 1 { + if tcx.sess.opts.debugging_opts.mir_opt_level < 2 { return; } trace!("running EarlyOtherwiseBranch on {:?}", body.source); |