[mlir] Use std::optional::value_or (NFC) (llvm#109893)

Author: kazutakahirata

mlir/lib/Conversion/VectorToXeGPU/VectorToXeGPU.cpp

@@ -106,7 +106,7 @@ createNdDescriptor(PatternRewriter &rewriter, Location loc,
       std::optional<int64_t> staticVal = getConstantIntValue(offset);
       if (!staticVal)
         dynOffsets.push_back(offset);
-      constOffsets.push_back(staticVal ? *staticVal : ShapedType::kDynamic);
+      constOffsets.push_back(staticVal.value_or(ShapedType::kDynamic));
     }
 
     SmallVector<Value> dynShapes;

mlir/lib/Dialect/Affine/Utils/LoopUtils.cpp

@@ -2067,7 +2067,7 @@ static LogicalResult generateCopy(
     // fastMemRefType is a constant shaped memref.
     auto maySizeInBytes = getIntOrFloatMemRefSizeInBytes(fastMemRefType);
     // We don't account for things of unknown size.
-    *sizeInBytes = maySizeInBytes ? *maySizeInBytes : 0;
+    *sizeInBytes = maySizeInBytes.value_or(0);
 
     LLVM_DEBUG(emitRemarkForBlock(*block)
                << "Creating fast buffer of type " << fastMemRefType

mlir/lib/Dialect/Linalg/TransformOps/LinalgTransformOps.cpp

@@ -3504,9 +3504,7 @@ DiagnosedSilenceableFailure transform::VectorizeOp::apply(
 
     if (failed(linalg::vectorize(rewriter, target, vectorSizes,
                                  getScalableSizes(),
-                                 getVectorizeNdExtract().has_value()
-                                     ? getVectorizeNdExtract().value()
-                                     : false))) {
+                                 getVectorizeNdExtract().value_or(false)))) {
       return mlir::emitSilenceableFailure(target->getLoc())
              << "Attempted to vectorize, but failed";
     }

mlir/lib/Dialect/PDL/IR/PDL.cpp

@@ -387,7 +387,7 @@ LogicalResult PatternOp::verifyRegions() {
 void PatternOp::build(OpBuilder &builder, OperationState &state,
                       std::optional<uint16_t> benefit,
                       std::optional<StringRef> name) {
-  build(builder, state, builder.getI16IntegerAttr(benefit ? *benefit : 0),
+  build(builder, state, builder.getI16IntegerAttr(benefit.value_or(0)),
         name ? builder.getStringAttr(*name) : StringAttr());
   state.regions[0]->emplaceBlock();
 }

mlir/lib/Dialect/Utils/StaticValueUtils.cpp

@@ -124,7 +124,7 @@ getConstantIntValues(ArrayRef<OpFoldResult> ofrs) {
     auto cv = getConstantIntValue(ofr);
     if (!cv.has_value())
       failed = true;
-    return cv.has_value() ? cv.value() : 0;
+    return cv.value_or(0);
   });
   if (failed)
     return std::nullopt;