[Transforms] Fix a warning

kazutakahirata · kazutakahirata · commit ca1a8be06b23 · 2021-11-05T19:30:14.000-07:00
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.
diff --git 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));
 }

Original file line number	Diff line number	Diff line change
`@@ -121,8 +121,6 @@ constantDimLevelTypeEncoding(ConversionPatternRewriter &rewriter, Location loc,`
`121`	`121`	`case SparseTensorEncodingAttr::DimLevelType::Singleton:`
`122`	`122`	`dlt2 = DimLevelType::kSingleton;`
`123`	`123`	`break;`
`124`		`- default:`
`125`		`- llvm_unreachable("Unknown SparseTensorEncodingAttr::DimLevelType");`
`126`	`124`	`}`
`127`	`125`	`return constantI8(rewriter, loc, static_cast<uint8_t>(dlt2));`
`128`	`126`	`}`