[mlir][complex] Add tan op for complex dialect

[Lewuathe]

Summary

Add tangent operation for complex dialect. This is the follow-up change of https://reviews.llvm.org/D126521

[Lewuathe]

Apply clang-format

mlir/include/mlir/Dialect/Complex/IR/ComplexOps.td

let description = [{
     ```mlir
     %a = complex.tanh %b : complex<f32>
     ```
   }];
 
   let results = (outs Complex<AnyFloat>:$result);
 }
 
+//===----------------------------------------------------------------------===//
+// TanOp
+//===----------------------------------------------------------------------===//
+
+def TanOp : ComplexUnaryOp<"tan", [SameOperandsAndResultType]> {
+  let summary = "computes tangent of a complex number";
+  let description = [{
+    The `tan` op takes a single complex number and computes the tangent of
+    it, i.e. `tan(x)`, where `x` is the input value.
+
+    Example:
+
+    ```mlir
+    %a = complex.tan %b : complex<f32>
+    ```
+  }];
+  let results = (outs Complex<AnyFloat>:$result);
+}
+
 #endif // COMPLEX_OPS

mlir/lib/Conversion/ComplexToStandard/ComplexToStandard.cpp

matchAndRewrite(complex::SignOp op, OpAdaptor adaptor,
     Value realSign = b.create<arith::DivFOp>(real, abs);
     Value imagSign = b.create<arith::DivFOp>(imag, abs);
     Value sign = b.create<complex::CreateOp>(type, realSign, imagSign);
     rewriter.replaceOpWithNewOp<arith::SelectOp>(op, isZero,
                                                  adaptor.getComplex(), sign);
     return success();
   }
 };
+
+struct TanOpConversion : public OpConversionPattern<complex::TanOp> {
+  using OpConversionPattern<complex::TanOp>::OpConversionPattern;
+
+  LogicalResult
+  matchAndRewrite(complex::TanOp op, OpAdaptor adaptor,
+                  ConversionPatternRewriter &rewriter) const override {
+    auto loc = op.getLoc();
+    auto type = adaptor.getComplex().getType().cast<ComplexType>();
+    auto elementType = type.getElementType().cast<FloatType>();
+
+    Value cos = rewriter.create<complex::CosOp>(loc, adaptor.getComplex());
+    Value sin = rewriter.create<complex::SinOp>(loc, adaptor.getComplex());
+    rewriter.replaceOpWithNewOp<complex::DivOp>(op, sin, cos);
+
+    return success();
+  }
+};
 } // namespace
 
 void mlir::populateComplexToStandardConversionPatterns(
     RewritePatternSet &patterns) {
   // clang-format off
   patterns.add<
       AbsOpConversion,
       ComparisonOpConversion<complex::EqualOp, arith::CmpFPredicate::OEQ>,
       ComparisonOpConversion<complex::NotEqualOp, arith::CmpFPredicate::UNE>,
       BinaryComplexOpConversion<complex::AddOp, arith::AddFOp>,
       BinaryComplexOpConversion<complex::SubOp, arith::SubFOp>,
       CosOpConversion,
       DivOpConversion,
       ExpOpConversion,
       Expm1OpConversion,
       LogOpConversion,
       Log1pOpConversion,
       MulOpConversion,
       NegOpConversion,
       SignOpConversion,
-      SinOpConversion>(patterns.getContext());
+      SinOpConversion,
+      TanOpConversion>(patterns.getContext());
   // clang-format on
 }
 
 namespace {
 struct ConvertComplexToStandardPass
     : public ConvertComplexToStandardBase<ConvertComplexToStandardPass> {
   void runOnOperation() override;
 };

mlir/test/Conversion/ComplexToStandard/convert-to-standard.mlir

 // CHECK: %[[REAL_LHS:.*]] = complex.re %[[LHS]] : complex<f32>
 // CHECK: %[[REAL_RHS:.*]] = complex.re %[[RHS]] : complex<f32>
 // CHECK: %[[RESULT_REAL:.*]] = arith.subf %[[REAL_LHS]], %[[REAL_RHS]] : f32
 // CHECK: %[[IMAG_LHS:.*]] = complex.im %[[LHS]] : complex<f32>
 // CHECK: %[[IMAG_RHS:.*]] = complex.im %[[RHS]] : complex<f32>
 // CHECK: %[[RESULT_IMAG:.*]] = arith.subf %[[IMAG_LHS]], %[[IMAG_RHS]] : f32
 // CHECK: %[[RESULT:.*]] = complex.create %[[RESULT_REAL]], %[[RESULT_IMAG]] : complex<f32>
 // CHECK: return %[[RESULT]] : complex<f32>
+
+// CHECK-LABEL: func @complex_tan
+// CHECK-SAME: %[[ARG:.*]]: complex<f32>
+func.func @complex_tan(%arg: complex<f32>) -> complex<f32> {
+  %tan = complex.tan %arg: complex<f32>
+  return %tan : complex<f32>
+}
+// CHECK-DAG: %[[REAL:.*]] = complex.re %[[ARG]]
+// CHECK-DAG: %[[IMAG:.*]] = complex.im %[[ARG]]
+// CHECK-DAG: %[[HALF:.*]] = arith.constant 5.000000e-01 : f32
+// CHECK-DAG: %[[EXP:.*]] = math.exp %[[IMAG]] : f32
+// CHECK-DAG: %[[HALF_EXP:.*]] = arith.mulf %[[HALF]], %[[EXP]]
+// CHECK-DAG: %[[HALF_REXP:.*]] = arith.divf %[[HALF]], %[[EXP]]
+// CHECK-DAG: %[[SIN:.*]] = math.sin %[[REAL]] : f32
+// CHECK-DAG: %[[COS:.*]] = math.cos %[[REAL]] : f32
+// CHECK-DAG: %[[EXP_SUM:.*]] = arith.addf %[[HALF_REXP]], %[[HALF_EXP]]
+// CHECK-DAG: %[[COS_REAL:.*]] = arith.mulf %[[EXP_SUM]], %[[COS]]
+// CHECK-DAG: %[[EXP_DIFF:.*]] = arith.subf %[[HALF_REXP]], %[[HALF_EXP]]
+// CHECK-DAG: %[[COS_IMAG:.*]] = arith.mulf %[[EXP_DIFF]], %[[SIN]]
+// CHECK-DAG: %[[COS_COMP:.*]] = complex.create %[[COS_REAL]], %[[COS_IMAG]] : complex<f32>
+
+// CHECK-DAG: %[[REAL:.*]] = complex.re %[[ARG]]
+// CHECK-DAG: %[[IMAG:.*]] = complex.im %[[ARG]]
+// CHECK-DAG: %[[HALF:.*]] = arith.constant 5.000000e-01 : f32
+// CHECK-DAG: %[[EXP:.*]] = math.exp %[[IMAG]] : f32
+// CHECK-DAG: %[[HALF_EXP:.*]] = arith.mulf %[[HALF]], %[[EXP]]
+// CHECK-DAG: %[[HALF_REXP:.*]] = arith.divf %[[HALF]], %[[EXP]]
+// CHECK-DAG: %[[SIN:.*]] = math.sin %[[REAL]] : f32
+// CHECK-DAG: %[[COS:.*]] = math.cos %[[REAL]] : f32
+// CHECK-DAG: %[[EXP_SUM:.*]] = arith.addf %[[HALF_EXP]], %[[HALF_REXP]]
+// CHECK-DAG: %[[SIN_REAL:.*]] = arith.mulf %[[EXP_SUM]], %[[SIN]]
+// CHECK-DAG: %[[EXP_DIFF:.*]] = arith.subf %[[HALF_EXP]], %[[HALF_REXP]]
+// CHECK-DAG: %[[SIN_IMAG:.*]] = arith.mulf %[[EXP_DIFF]], %[[COS]]
+// CHECK-DAG: %[[SIN_COMP:.*]] = complex.create %[[SIN_REAL]], %[[SIN_IMAG]] : complex<f32>
+
+// CHECK: %[[LHS_REAL:.*]] = complex.re %[[SIN_COMP]] : complex<f32>
+// CHECK: %[[LHS_IMAG:.*]] = complex.im %[[SIN_COMP]] : complex<f32>
+// CHECK: %[[RHS_REAL:.*]] = complex.re %[[COS_COMP]] : complex<f32>
+// CHECK: %[[RHS_IMAG:.*]] = complex.im %[[COS_COMP]] : complex<f32>
+
+// CHECK: %[[RHS_REAL_IMAG_RATIO:.*]] = arith.divf %[[RHS_REAL]], %[[RHS_IMAG]] : f32
+// CHECK: %[[RHS_REAL_TIMES_RHS_REAL_IMAG_RATIO:.*]] = arith.mulf %[[RHS_REAL_IMAG_RATIO]], %[[RHS_REAL]] : f32
+// CHECK: %[[RHS_REAL_IMAG_DENOM:.*]] = arith.addf %[[RHS_IMAG]], %[[RHS_REAL_TIMES_RHS_REAL_IMAG_RATIO]] : f32
+// CHECK: %[[LHS_REAL_TIMES_RHS_REAL_IMAG_RATIO:.*]] = arith.mulf %[[LHS_REAL]], %[[RHS_REAL_IMAG_RATIO]] : f32
+// CHECK: %[[REAL_NUMERATOR_1:.*]] = arith.addf %[[LHS_REAL_TIMES_RHS_REAL_IMAG_RATIO]], %[[LHS_IMAG]] : f32
+// CHECK: %[[RESULT_REAL_1:.*]] = arith.divf %[[REAL_NUMERATOR_1]], %[[RHS_REAL_IMAG_DENOM]] : f32
+// CHECK: %[[LHS_IMAG_TIMES_RHS_REAL_IMAG_RATIO:.*]] = arith.mulf %[[LHS_IMAG]], %[[RHS_REAL_IMAG_RATIO]] : f32
+// CHECK: %[[IMAG_NUMERATOR_1:.*]] = arith.subf %[[LHS_IMAG_TIMES_RHS_REAL_IMAG_RATIO]], %[[LHS_REAL]] : f32
+// CHECK: %[[RESULT_IMAG_1:.*]] = arith.divf %[[IMAG_NUMERATOR_1]], %[[RHS_REAL_IMAG_DENOM]] : f32
+
+// CHECK: %[[RHS_IMAG_REAL_RATIO:.*]] = arith.divf %[[RHS_IMAG]], %[[RHS_REAL]] : f32
+// CHECK: %[[RHS_IMAG_TIMES_RHS_IMAG_REAL_RATIO:.*]] = arith.mulf %[[RHS_IMAG_REAL_RATIO]], %[[RHS_IMAG]] : f32
+// CHECK: %[[RHS_IMAG_REAL_DENOM:.*]] = arith.addf %[[RHS_REAL]], %[[RHS_IMAG_TIMES_RHS_IMAG_REAL_RATIO]] : f32
+// CHECK: %[[LHS_IMAG_TIMES_RHS_IMAG_REAL_RATIO:.*]] = arith.mulf %[[LHS_IMAG]], %[[RHS_IMAG_REAL_RATIO]] : f32
+// CHECK: %[[REAL_NUMERATOR_2:.*]] = arith.addf %[[LHS_REAL]], %[[LHS_IMAG_TIMES_RHS_IMAG_REAL_RATIO]] : f32
+// CHECK: %[[RESULT_REAL_2:.*]] = arith.divf %[[REAL_NUMERATOR_2]], %[[RHS_IMAG_REAL_DENOM]] : f32
+// CHECK: %[[LHS_REAL_TIMES_RHS_IMAG_REAL_RATIO:.*]] = arith.mulf %[[LHS_REAL]], %[[RHS_IMAG_REAL_RATIO]] : f32
+// CHECK: %[[IMAG_NUMERATOR_2:.*]] = arith.subf %[[LHS_IMAG]], %[[LHS_REAL_TIMES_RHS_IMAG_REAL_RATIO]] : f32
+// CHECK: %[[RESULT_IMAG_2:.*]] = arith.divf %[[IMAG_NUMERATOR_2]], %[[RHS_IMAG_REAL_DENOM]] : f32
+
+// Case 1. Zero denominator, numerator contains at most one NaN value.
+// CHECK: %[[ZERO:.*]] = arith.constant 0.000000e+00 : f32
+// CHECK: %[[RHS_REAL_ABS:.*]] = math.abs %[[RHS_REAL]] : f32
+// CHECK: %[[RHS_REAL_ABS_IS_ZERO:.*]] = arith.cmpf oeq, %[[RHS_REAL_ABS]], %[[ZERO]] : f32
+// CHECK: %[[RHS_IMAG_ABS:.*]] = math.abs %[[RHS_IMAG]] : f32
+// CHECK: %[[RHS_IMAG_ABS_IS_ZERO:.*]] = arith.cmpf oeq, %[[RHS_IMAG_ABS]], %[[ZERO]] : f32
+// CHECK: %[[LHS_REAL_IS_NOT_NAN:.*]] = arith.cmpf ord, %[[LHS_REAL]], %[[ZERO]] : f32
+// CHECK: %[[LHS_IMAG_IS_NOT_NAN:.*]] = arith.cmpf ord, %[[LHS_IMAG]], %[[ZERO]] : f32
+// CHECK: %[[LHS_CONTAINS_NOT_NAN_VALUE:.*]] = arith.ori %[[LHS_REAL_IS_NOT_NAN]], %[[LHS_IMAG_IS_NOT_NAN]] : i1
+// CHECK: %[[RHS_IS_ZERO:.*]] = arith.andi %[[RHS_REAL_ABS_IS_ZERO]], %[[RHS_IMAG_ABS_IS_ZERO]] : i1
+// CHECK: %[[RESULT_IS_INFINITY:.*]] = arith.andi %[[LHS_CONTAINS_NOT_NAN_VALUE]], %[[RHS_IS_ZERO]] : i1
+// CHECK: %[[INF:.*]] = arith.constant 0x7F800000 : f32
+// CHECK: %[[INF_WITH_SIGN_OF_RHS_REAL:.*]] = math.copysign %[[INF]], %[[RHS_REAL]] : f32
+// CHECK: %[[INFINITY_RESULT_REAL:.*]] = arith.mulf %[[INF_WITH_SIGN_OF_RHS_REAL]], %[[LHS_REAL]] : f32
+// CHECK: %[[INFINITY_RESULT_IMAG:.*]] = arith.mulf %[[INF_WITH_SIGN_OF_RHS_REAL]], %[[LHS_IMAG]] : f32
+
+// Case 2. Infinite numerator, finite denominator.
+// CHECK: %[[RHS_REAL_FINITE:.*]] = arith.cmpf one, %[[RHS_REAL_ABS]], %[[INF]] : f32
+// CHECK: %[[RHS_IMAG_FINITE:.*]] = arith.cmpf one, %[[RHS_IMAG_ABS]], %[[INF]] : f32
+// CHECK: %[[RHS_IS_FINITE:.*]] = arith.andi %[[RHS_REAL_FINITE]], %[[RHS_IMAG_FINITE]] : i1
+// CHECK: %[[LHS_REAL_ABS:.*]] = math.abs %[[LHS_REAL]] : f32
+// CHECK: %[[LHS_REAL_INFINITE:.*]] = arith.cmpf oeq, %[[LHS_REAL_ABS]], %[[INF]] : f32
+// CHECK: %[[LHS_IMAG_ABS:.*]] = math.abs %[[LHS_IMAG]] : f32
+// CHECK: %[[LHS_IMAG_INFINITE:.*]] = arith.cmpf oeq, %[[LHS_IMAG_ABS]], %[[INF]] : f32
+// CHECK: %[[LHS_IS_INFINITE:.*]] = arith.ori %[[LHS_REAL_INFINITE]], %[[LHS_IMAG_INFINITE]] : i1
+// CHECK: %[[INF_NUM_FINITE_DENOM:.*]] = arith.andi %[[LHS_IS_INFINITE]], %[[RHS_IS_FINITE]] : i1
+// CHECK: %[[ONE:.*]] = arith.constant 1.000000e+00 : f32
+// CHECK: %[[LHS_REAL_IS_INF:.*]] = arith.select %[[LHS_REAL_INFINITE]], %[[ONE]], %[[ZERO]] : f32
+// CHECK: %[[LHS_REAL_IS_INF_WITH_SIGN:.*]] = math.copysign %[[LHS_REAL_IS_INF]], %[[LHS_REAL]] : f32
+// CHECK: %[[LHS_IMAG_IS_INF:.*]] = arith.select %[[LHS_IMAG_INFINITE]], %[[ONE]], %[[ZERO]] : f32
+// CHECK: %[[LHS_IMAG_IS_INF_WITH_SIGN:.*]] = math.copysign %[[LHS_IMAG_IS_INF]], %[[LHS_IMAG]] : f32
+// CHECK: %[[LHS_REAL_IS_INF_WITH_SIGN_TIMES_RHS_REAL:.*]] = arith.mulf %[[LHS_REAL_IS_INF_WITH_SIGN]], %[[RHS_REAL]] : f32
+// CHECK: %[[LHS_IMAG_IS_INF_WITH_SIGN_TIMES_RHS_IMAG:.*]] = arith.mulf %[[LHS_IMAG_IS_INF_WITH_SIGN]], %[[RHS_IMAG]] : f32
+// CHECK: %[[INF_MULTIPLICATOR_1:.*]] = arith.addf %[[LHS_REAL_IS_INF_WITH_SIGN_TIMES_RHS_REAL]], %[[LHS_IMAG_IS_INF_WITH_SIGN_TIMES_RHS_IMAG]] : f32
+// CHECK: %[[RESULT_REAL_3:.*]] = arith.mulf %[[INF]], %[[INF_MULTIPLICATOR_1]] : f32
+// CHECK: %[[LHS_REAL_IS_INF_WITH_SIGN_TIMES_RHS_IMAG:.*]] = arith.mulf %[[LHS_REAL_IS_INF_WITH_SIGN]], %[[RHS_IMAG]] : f32
+// CHECK: %[[LHS_IMAG_IS_INF_WITH_SIGN_TIMES_RHS_REAL:.*]] = arith.mulf %[[LHS_IMAG_IS_INF_WITH_SIGN]], %[[RHS_REAL]] : f32
+// CHECK: %[[INF_MULTIPLICATOR_2:.*]] = arith.subf %[[LHS_IMAG_IS_INF_WITH_SIGN_TIMES_RHS_REAL]], %[[LHS_REAL_IS_INF_WITH_SIGN_TIMES_RHS_IMAG]] : f32
+// CHECK: %[[RESULT_IMAG_3:.*]] = arith.mulf %[[INF]], %[[INF_MULTIPLICATOR_2]] : f32
+
+// Case 3. Finite numerator, infinite denominator.
+// CHECK: %[[LHS_REAL_FINITE:.*]] = arith.cmpf one, %[[LHS_REAL_ABS]], %[[INF]] : f32
+// CHECK: %[[LHS_IMAG_FINITE:.*]] = arith.cmpf one, %[[LHS_IMAG_ABS]], %[[INF]] : f32
+// CHECK: %[[LHS_IS_FINITE:.*]] = arith.andi %[[LHS_REAL_FINITE]], %[[LHS_IMAG_FINITE]] : i1
+// CHECK: %[[RHS_REAL_INFINITE:.*]] = arith.cmpf oeq, %[[RHS_REAL_ABS]], %[[INF]] : f32
+// CHECK: %[[RHS_IMAG_INFINITE:.*]] = arith.cmpf oeq, %[[RHS_IMAG_ABS]], %[[INF]] : f32
+// CHECK: %[[RHS_IS_INFINITE:.*]] = arith.ori %[[RHS_REAL_INFINITE]], %[[RHS_IMAG_INFINITE]] : i1
+// CHECK: %[[FINITE_NUM_INFINITE_DENOM:.*]] = arith.andi %[[LHS_IS_FINITE]], %[[RHS_IS_INFINITE]] : i1
+// CHECK: %[[RHS_REAL_IS_INF:.*]] = arith.select %[[RHS_REAL_INFINITE]], %[[ONE]], %[[ZERO]] : f32
+// CHECK: %[[RHS_REAL_IS_INF_WITH_SIGN:.*]] = math.copysign %[[RHS_REAL_IS_INF]], %[[RHS_REAL]] : f32
+// CHECK: %[[RHS_IMAG_IS_INF:.*]] = arith.select %[[RHS_IMAG_INFINITE]], %[[ONE]], %[[ZERO]] : f32
+// CHECK: %[[RHS_IMAG_IS_INF_WITH_SIGN:.*]] = math.copysign %[[RHS_IMAG_IS_INF]], %[[RHS_IMAG]] : f32
+// CHECK: %[[RHS_REAL_IS_INF_WITH_SIGN_TIMES_LHS_REAL:.*]] = arith.mulf %[[LHS_REAL]], %[[RHS_REAL_IS_INF_WITH_SIGN]] : f32
+// CHECK: %[[RHS_IMAG_IS_INF_WITH_SIGN_TIMES_LHS_IMAG:.*]] = arith.mulf %[[LHS_IMAG]], %[[RHS_IMAG_IS_INF_WITH_SIGN]] : f32
+// CHECK: %[[ZERO_MULTIPLICATOR_1:.*]] = arith.addf %[[RHS_REAL_IS_INF_WITH_SIGN_TIMES_LHS_REAL]], %[[RHS_IMAG_IS_INF_WITH_SIGN_TIMES_LHS_IMAG]] : f32
+// CHECK: %[[RESULT_REAL_4:.*]] = arith.mulf %[[ZERO]], %[[ZERO_MULTIPLICATOR_1]] : f32
+// CHECK: %[[RHS_REAL_IS_INF_WITH_SIGN_TIMES_LHS_IMAG:.*]] = arith.mulf %[[LHS_IMAG]], %[[RHS_REAL_IS_INF_WITH_SIGN]] : f32
+// CHECK: %[[RHS_IMAG_IS_INF_WITH_SIGN_TIMES_LHS_REAL:.*]] = arith.mulf %[[LHS_REAL]], %[[RHS_IMAG_IS_INF_WITH_SIGN]] : f32
+// CHECK: %[[ZERO_MULTIPLICATOR_2:.*]] = arith.subf %[[RHS_REAL_IS_INF_WITH_SIGN_TIMES_LHS_IMAG]], %[[RHS_IMAG_IS_INF_WITH_SIGN_TIMES_LHS_REAL]] : f32
+// CHECK: %[[RESULT_IMAG_4:.*]] = arith.mulf %[[ZERO]], %[[ZERO_MULTIPLICATOR_2]] : f32
+
+// CHECK: %[[REAL_ABS_SMALLER_THAN_IMAG_ABS:.*]] = arith.cmpf olt, %[[RHS_REAL_ABS]], %[[RHS_IMAG_ABS]] : f32
+// CHECK: %[[RESULT_REAL:.*]] = arith.select %[[REAL_ABS_SMALLER_THAN_IMAG_ABS]], %[[RESULT_REAL_1]], %[[RESULT_REAL_2]] : f32
+// CHECK: %[[RESULT_IMAG:.*]] = arith.select %[[REAL_ABS_SMALLER_THAN_IMAG_ABS]], %[[RESULT_IMAG_1]], %[[RESULT_IMAG_2]] : f32
+// CHECK: %[[RESULT_REAL_SPECIAL_CASE_3:.*]] = arith.select %[[FINITE_NUM_INFINITE_DENOM]], %[[RESULT_REAL_4]], %[[RESULT_REAL]] : f32
+// CHECK: %[[RESULT_IMAG_SPECIAL_CASE_3:.*]] = arith.select %[[FINITE_NUM_INFINITE_DENOM]], %[[RESULT_IMAG_4]], %[[RESULT_IMAG]] : f32
+// CHECK: %[[RESULT_REAL_SPECIAL_CASE_2:.*]] = arith.select %[[INF_NUM_FINITE_DENOM]], %[[RESULT_REAL_3]], %[[RESULT_REAL_SPECIAL_CASE_3]] : f32
+// CHECK: %[[RESULT_IMAG_SPECIAL_CASE_2:.*]] = arith.select %[[INF_NUM_FINITE_DENOM]], %[[RESULT_IMAG_3]], %[[RESULT_IMAG_SPECIAL_CASE_3]] : f32
+// CHECK: %[[RESULT_REAL_SPECIAL_CASE_1:.*]] = arith.select %[[RESULT_IS_INFINITY]], %[[INFINITY_RESULT_REAL]], %[[RESULT_REAL_SPECIAL_CASE_2]] : f32
+// CHECK: %[[RESULT_IMAG_SPECIAL_CASE_1:.*]] = arith.select %[[RESULT_IS_INFINITY]], %[[INFINITY_RESULT_IMAG]], %[[RESULT_IMAG_SPECIAL_CASE_2]] : f32
+// CHECK: %[[RESULT_REAL_IS_NAN:.*]] = arith.cmpf uno, %[[RESULT_REAL]], %[[ZERO]] : f32
+// CHECK: %[[RESULT_IMAG_IS_NAN:.*]] = arith.cmpf uno, %[[RESULT_IMAG]], %[[ZERO]] : f32
+// CHECK: %[[RESULT_IS_NAN:.*]] = arith.andi %[[RESULT_REAL_IS_NAN]], %[[RESULT_IMAG_IS_NAN]] : i1
+// CHECK: %[[RESULT_REAL_WITH_SPECIAL_CASES:.*]] = arith.select %[[RESULT_IS_NAN]], %[[RESULT_REAL_SPECIAL_CASE_1]], %[[RESULT_REAL]] : f32
+// CHECK: %[[RESULT_IMAG_WITH_SPECIAL_CASES:.*]] = arith.select %[[RESULT_IS_NAN]], %[[RESULT_IMAG_SPECIAL_CASE_1]], %[[RESULT_IMAG]] : f32
+// CHECK: %[[RESULT:.*]] = complex.create %[[RESULT_REAL_WITH_SPECIAL_CASES]], %[[RESULT_IMAG_WITH_SPECIAL_CASES]] : complex<f32>
+// CHECK: return %[[RESULT]] : complex<f32>
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