Add a convenient operation build method for spirv::SelectOp

The SelectOp always has the same result type as its true/false
value. Add a builder method that uses the operand type to get the
result type.

PiperOrigin-RevId: 277217978

Author: Mahesh Ravishankar

include/mlir/Dialect/SPIRV/SPIRVLogicalOps.td

@@ -858,6 +858,10 @@ def SPV_SelectOp : SPV_Op<"Select", [NoSideEffect]> {
   let results = (outs
     SPV_SelectType:$result
   );
+
+  let builders = [OpBuilder<[{Builder *builder, OperationState &state,
+                              Value *cond, Value *trueValue,
+                              Value *falseValue}]>];
 }
 
 // -----

lib/Dialect/SPIRV/SPIRVOps.cpp

@@ -1844,6 +1844,11 @@ static LogicalResult verify(spirv::ReturnValueOp retValOp) {
 // spv.Select
 //===----------------------------------------------------------------------===//
 
+void spirv::SelectOp::build(Builder *builder, OperationState &state,
+                            Value *cond, Value *trueValue, Value *falseValue) {
+  build(builder, state, trueValue->getType(), cond, trueValue, falseValue);
+}
+
 static ParseResult parseSelectOp(OpAsmParser &parser, OperationState &state) {
   OpAsmParser::OperandType condition;
   SmallVector<OpAsmParser::OperandType, 2> operands;