fix test

Author: jacquesguan

mlir/lib/Conversion/ArithToEmitC/ArithToEmitC.cpp

@@ -743,7 +743,7 @@ class FpCastOpConversion : public OpConversionPattern<CastOp> {
   LogicalResult
   matchAndRewrite(CastOp castOp, typename CastOp::Adaptor adaptor,
                   ConversionPatternRewriter &rewriter) const override {
-    // Vectors in particular are not supported
+    // Vectors in particular are not supported.
     Type operandType = adaptor.getIn().getType();
     if (!emitc::isSupportedFloatType(operandType))
       return rewriter.notifyMatchFailure(castOp,

mlir/test/Conversion/ArithToEmitC/arith-to-emitc-unsupported.mlir

@@ -161,7 +161,7 @@ func.func @arith_truncf(%arg0: f64) -> f32 {
 // -----
 
 func.func @arith_extf_f128(%arg0: f32) -> f128 {
-  // expected-error @+1 {{failed to legalize operation 'arith.truncf'}}
+  // expected-error @+1 {{failed to legalize operation 'arith.extf'}}
   %extd = arith.extf %arg0 : f32 to f128
   return %extd : f128
 }
@@ -177,7 +177,7 @@ func.func @arith_truncf_f128(%arg0: f128) -> f32 {
 // -----
 
 func.func @arith_extf_vector(%arg0: vector<4xf32>) -> vector<4xf64> {
-  // expected-error @+1 {{failed to legalize operation 'arith.truncf'}}
+  // expected-error @+1 {{failed to legalize operation 'arith.extf'}}
   %extd = arith.extf %arg0 : vector<4xf32> to vector<4xf64>
   return %extd : vector<4xf64>
 }