From 8a6cb266288c673dd2b0de075438a4d7974febc0 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Sun, 7 Jun 2020 10:05:33 +0200
Subject: [PATCH] PERF only: disable default MIR validation

---
 src/librustc_mir/transform/mod.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/librustc_mir/transform/mod.rs b/src/librustc_mir/transform/mod.rs
index 26725a2ac02d5..ea54ebea016ac 100644
--- a/src/librustc_mir/transform/mod.rs
+++ b/src/librustc_mir/transform/mod.rs
@@ -193,10 +193,10 @@ pub fn run_passes(
 
     body.phase = mir_phase;
 
-    if mir_phase == MirPhase::Optimized {
+    /*if mir_phase == MirPhase::Optimized {
         validate::Validator { when: format!("end of phase {:?}", mir_phase) }
             .run_pass(tcx, source, body);
-    }
+    }*/
 }
 
 fn mir_const_qualif(tcx: TyCtxt<'_>, def_id: DefId) -> ConstQualifs {