From e5e4b59683c055e35328208a0954413c7268d4d5 Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Thu, 21 Sep 2017 09:39:31 -0700
Subject: [PATCH] Tidy up some asserts.

---
 lib/frontend/src/frontend.rs | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/frontend/src/frontend.rs b/lib/frontend/src/frontend.rs
index f2ae3b692b..91c2b4c4e6 100644
--- a/lib/frontend/src/frontend.rs
+++ b/lib/frontend/src/frontend.rs
@@ -569,7 +569,6 @@ where
                 self.func.dfg.append_ebb_arg(dest_ebb, *ty);
             }
         } else {
-            let dest_ebb_args = self.func.dfg.ebb_args(dest_ebb);
             // The Ebb already has predecessors
             // We check that the arguments supplied match those supplied
             // previously.
@@ -577,15 +576,12 @@ where
                 jump_args.len(),
                 self.builder.ebbs[dest_ebb].user_arg_count,
                 "the jump instruction doesn't have the same \
-                      number of arguments as its destination Ebb \
-                      ({} vs {}).",
-                jump_args.len(),
-                dest_ebb_args.len()
+                      number of arguments as its destination Ebb.",
             );
             debug_assert!(
                 jump_args
                     .iter()
-                    .zip(dest_ebb_args.iter().take(
+                    .zip(self.func.dfg.ebb_args(dest_ebb).iter().take(
                         self.builder.ebbs[dest_ebb].user_arg_count,
                     ))
                     .all(|(jump_arg, dest_arg)| {