From ca1a8be06b230192ff37109be51c0a1daaff3e56 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Fri, 5 Nov 2021 19:30:14 -0700
Subject: [PATCH] [Transforms] Fix a warning

This patch fixes:

  mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp:124:3:
  error: default label in switch which covers all enumeration values
  [-Werror,-Wcovered-switch-default]

by removing the default case.
---
 .../Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp  | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp b/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
index 1ef4ea854a0c..77e0ff16ba28 100644
--- a/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
+++ b/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
@@ -121,8 +121,6 @@ constantDimLevelTypeEncoding(ConversionPatternRewriter &rewriter, Location loc,
   case SparseTensorEncodingAttr::DimLevelType::Singleton:
     dlt2 = DimLevelType::kSingleton;
     break;
-  default:
-    llvm_unreachable("Unknown SparseTensorEncodingAttr::DimLevelType");
   }
   return constantI8(rewriter, loc, static_cast<uint8_t>(dlt2));
 }