From c2b2472ca8c3abf272bdf24b5ce633f4bd27fbba Mon Sep 17 00:00:00 2001
From: Chris Lattner <chrisl@clattner-0291.local>
Date: Wed, 4 Mar 2020 22:06:54 -0800
Subject: [PATCH] Fix a warning about an unreachable default in a switch
 statement.

Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, liufengdb, Joonsoo, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75663
---
 mlir/lib/Dialect/StandardOps/IR/Ops.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mlir/lib/Dialect/StandardOps/IR/Ops.cpp b/mlir/lib/Dialect/StandardOps/IR/Ops.cpp
index 8e7233e8acda..21314970c199 100644
--- a/mlir/lib/Dialect/StandardOps/IR/Ops.cpp
+++ b/mlir/lib/Dialect/StandardOps/IR/Ops.cpp
@@ -695,9 +695,8 @@ static bool applyCmpPredicate(CmpFPredicate predicate, const APFloat &lhs,
     return cmpResult == APFloat::cmpUnordered;
   case CmpFPredicate::AlwaysTrue:
     return true;
-  default:
-    llvm_unreachable("unknown comparison predicate");
   }
+  llvm_unreachable("unknown comparison predicate");
 }
 
 // Constant folding hook for comparisons.