From 4aa3463a6b98e41070d03ddbe60e689537b02b59 Mon Sep 17 00:00:00 2001
From: "Alon Zakai (kripken)" <alonzakai@gmail.com>
Date: Mon, 31 Jul 2017 08:05:26 -0700
Subject: handle squared shifts of an unreachable

---
 src/passes/OptimizeInstructions.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/passes/OptimizeInstructions.cpp b/src/passes/OptimizeInstructions.cpp
index 60222c3cd..6179833b8 100644
--- a/src/passes/OptimizeInstructions.cpp
+++ b/src/passes/OptimizeInstructions.cpp
@@ -539,9 +539,9 @@ struct OptimizeInstructions : public WalkerPass<PostWalker<OptimizeInstructions,
                 // shifts only use an effective amount from the constant, so adding must
                 // be done carefully
                 auto total = Bits::getEffectiveShifts(leftRight) + Bits::getEffectiveShifts(right);
-                if (total == Bits::getEffectiveShifts(total, left->type)) {
+                if (total == Bits::getEffectiveShifts(total, right->type)) {
                   // no overflow, we can do this
-                  leftRight->value = LiteralUtils::makeLiteralFromInt32(total, left->type);
+                  leftRight->value = LiteralUtils::makeLiteralFromInt32(total, right->type);
                   return left;
                 } // TODO: handle overflows
               }
-- 
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